feat: dataloaders within transactions

2026-11-13 20:28:06 -10:00 · 2020-12-10 15:34:56 -08:00
111 changed files with 1492 additions and 3139 deletions
@@ -10,8 +10,7 @@
  "rules": {
    "no-restricted-imports": ["error",{ "paths": [".", "..", "../.."] }],
    "tsdoc/syntax": "warn",
-    "no-console": "warn",
-    "handle-callback-err": "off"
+    "no-console": "warn"
  },
  "overrides": [
    {
@@ -3,85 +3,6 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.

-## [0.14.1](https://github.com/expo/entity/compare/v0.14.0...v0.14.1) (2021-03-24)
-
-
-### Bug Fixes
-
-* typescript typedef of EntityMutationInfo ([#121](https://github.com/expo/entity/issues/121)) ([8e8f0dc](https://github.com/expo/entity/commit/8e8f0dc8636e343e29a6012d155e4111477a8989))
-
-
-
-
-
-# [0.14.0](https://github.com/expo/entity/compare/v0.13.0...v0.14.0) (2021-03-24)
-
-
-### Bug Fixes
-
-* mutation validator and trigger cyclic import structure ([#118](https://github.com/expo/entity/issues/118)) ([b11dbc0](https://github.com/expo/entity/commit/b11dbc087ba5ad13c748032698dd73279b7960b0))
-
-
-### Features
-
-* add mutation type to validator and trigger execute functions ([#119](https://github.com/expo/entity/issues/119)) ([ef40fa5](https://github.com/expo/entity/commit/ef40fa5e9cdf53e25e78a9423c698e6d1c9737af))
-
-
-
-
-
-# [0.13.0](https://github.com/expo/entity/compare/v0.12.0...v0.13.0) (2021-02-12)
-
-
-### Bug Fixes
-
-* allow undefined value for all fields ([#114](https://github.com/expo/entity/issues/114)) ([022e0e9](https://github.com/expo/entity/commit/022e0e9b88a5e84e0c1bc6c8810c850beb05f0cf))
-
-
-### Features
-
-* add basic field type runtime validators ([#113](https://github.com/expo/entity/issues/113)) ([6c4d4b0](https://github.com/expo/entity/commit/6c4d4b03b5404dd776a12c5eb6f0af77a8c964f8))
-
-
-
-
-
-# [0.12.0](https://github.com/expo/entity/compare/v0.11.0...v0.12.0) (2021-01-22)
-
-
-### Bug Fixes
-
-* move runInTransaction to ViewerContext ([#108](https://github.com/expo/entity/issues/108)) ([b7309e1](https://github.com/expo/entity/commit/b7309e18a2dd780b64cd306d566de1f12bf8df3a))
-* remove cache and database adaptor flavor enums ([#109](https://github.com/expo/entity/issues/109)) ([72a77f8](https://github.com/expo/entity/commit/72a77f8b6893a4b76d3b1cce16659bdf3ce473ee))
-
-
-### Features
-
-* better typing on filterMap for use with predicates ([#106](https://github.com/expo/entity/issues/106)) ([01b3bfe](https://github.com/expo/entity/commit/01b3bfef7c6da55e7d89d8cccb52a0050187aee8))
-
-
-
-
-
-# [0.11.0](https://github.com/expo/entity/compare/v0.10.0...v0.11.0) (2020-12-24)
-
-
-### Bug Fixes
-
-* add type generic default in test utils ([#104](https://github.com/expo/entity/issues/104)) ([fe2917e](https://github.com/expo/entity/commit/fe2917e6b5af808f166aa354d476e168c41e6d21))
-* maps utils invariants for collections containing undefined values ([#103](https://github.com/expo/entity/issues/103)) ([29c1a43](https://github.com/expo/entity/commit/29c1a434ab6cd8d30e9f0e7c742065c8d46d8d8a))
-* remove any cast from EntityLoader ([#100](https://github.com/expo/entity/issues/100)) ([b8e07f9](https://github.com/expo/entity/commit/b8e07f9ddc4077768980c000d61f5ddcc824e2e3))
-
-
-### Features
-
-* better cache adapter error handling ([#102](https://github.com/expo/entity/issues/102)) ([15546aa](https://github.com/expo/entity/commit/15546aad97734ab9ac67f1c012485f096a0e94f1))
-* better database adapter error handling ([#101](https://github.com/expo/entity/issues/101)) ([5208aee](https://github.com/expo/entity/commit/5208aeedb0192f0460ba3d575770a04175f5c3aa))
-
-
-
-
-
 # [0.10.0](https://github.com/expo/entity/compare/v0.9.1...v0.10.0) (2020-11-17)


@@ -4,5 +4,5 @@
  ],
  "npmClient": "yarn",
  "useWorkspaces": true,
-  "version": "0.14.1"
+  "version": "0.10.0"
 }
@@ -20,20 +20,21 @@
    "@types/jest": "^26.0.10",
    "@types/node": "^14.6.0",
    "@types/uuid": "^8.3.0",
-    "@typescript-eslint/eslint-plugin": "^4.14.0",
-    "@typescript-eslint/parser": "^4.14.0",
+    "@typescript-eslint/eslint-plugin": "^3.10.1",
+    "@typescript-eslint/parser": "^3.10.1",
    "barrelsby": "^2.2.0",
    "eslint": "^7.7.0",
-    "eslint-config-universe": "^7.0.0",
-    "eslint-plugin-tsdoc": "^0.2.11",
-    "jest": "^26.6.3",
+    "eslint-config-universe": "^4.0.0",
+    "eslint-plugin-tsdoc": "^0.2.6",
+    "jest": "^26.4.2",
    "lerna": "^3.22.1",
    "pg": "^8.3.2",
    "prettier": "^2.1.0",
-    "ts-jest": "~26.4.4",
+    "ts-jest": "~26.2.0",
    "ts-mockito": "^2.6.1",
-    "typedoc": "^0.20.25",
-    "typescript": "^4.1.3",
+    "typedoc": "^0.17.6",
+    "typedoc-plugin-lerna-packages": "^0.3.0",
+    "typescript": "^4.0.2",
    "uuid": "^8.3.0"
  },
  "dependencies": {
@@ -3,52 +3,6 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.

-## [0.14.1](https://github.com/expo/entity/compare/v0.14.0...v0.14.1) (2021-03-24)
-
-**Note:** Version bump only for package @expo/entity-cache-adapter-redis
-
-
-
-
-
-# [0.14.0](https://github.com/expo/entity/compare/v0.13.0...v0.14.0) (2021-03-24)
-
-**Note:** Version bump only for package @expo/entity-cache-adapter-redis
-
-
-
-
-
-# [0.13.0](https://github.com/expo/entity/compare/v0.12.0...v0.13.0) (2021-02-12)
-
-**Note:** Version bump only for package @expo/entity-cache-adapter-redis
-
-
-
-
-
-# [0.12.0](https://github.com/expo/entity/compare/v0.11.0...v0.12.0) (2021-01-22)
-
-
-### Bug Fixes
-
-* remove cache and database adaptor flavor enums ([#109](https://github.com/expo/entity/issues/109)) ([72a77f8](https://github.com/expo/entity/commit/72a77f8b6893a4b76d3b1cce16659bdf3ce473ee))
-
-
-
-
-
-# [0.11.0](https://github.com/expo/entity/compare/v0.10.0...v0.11.0) (2020-12-24)
-
-
-### Features
-
-* better cache adapter error handling ([#102](https://github.com/expo/entity/issues/102)) ([15546aa](https://github.com/expo/entity/commit/15546aad97734ab9ac67f1c012485f096a0e94f1))
-
-
-
-
-
 # [0.10.0](https://github.com/expo/entity/compare/v0.9.1...v0.10.0) (2020-11-17)

 **Note:** Version bump only for package @expo/entity-cache-adapter-redis
@@ -35,7 +35,7 @@ export const createDefaultEntityCompanionProvider = (
      ...
    },
    {
-      ['redis']: {
+      [CacheAdapterFlavor.REDIS]: {
        cacheAdapterProvider: new RedisCacheAdapterProvider(redisCacheAdapterContext),
      },
    }
@@ -1,6 +1,6 @@
 {
  "name": "@expo/entity-cache-adapter-redis",
-  "version": "0.14.1",
+  "version": "0.10.0",
  "description": "Redis cache adapter for @expo/entity",
  "files": [
    "build",
@@ -32,6 +32,6 @@
    "ioredis": "^4.17.3"
  },
  "devDependencies": {
-    "@expo/entity": "^0.14.1"
+    "@expo/entity": "^0.10.0"
  }
 }
@@ -8,7 +8,6 @@ import {
 import { Redis } from 'ioredis';

 import { redisTransformerMap } from './RedisCommon';
-import wrapNativeRedisCall from './errors/wrapNativeRedisCall';

 // Sentinel value we store in Redis to negatively cache a database miss.
 // The sentinel value is distinct from any (positively) cached value.
@@ -72,9 +71,7 @@ export default class RedisCacheAdapter<TFields> extends EntityCacheAdapter<TFiel
    }

    const redisKeys = fieldValues.map((fieldValue) => this.makeCacheKey(fieldName, fieldValue));
-    const redisResults = await wrapNativeRedisCall(() =>
-      this.context.redisClient.mget(...redisKeys)
-    );
+    const redisResults = await this.context.redisClient.mget(...redisKeys);

    const results = new Map<NonNullable<TFields[N]>, CacheLoadResult>();
    for (let i = 0; i < fieldValues.length; i++) {
@@ -117,7 +114,7 @@ export default class RedisCacheAdapter<TFields> extends EntityCacheAdapter<TFiel
        this.context.ttlSecondsPositive
      );
    });
-    await wrapNativeRedisCall(() => redisTransaction.exec());
+    await redisTransaction.exec();
  }

  public async cacheDBMissesAsync<N extends keyof TFields>(
@@ -138,7 +135,7 @@ export default class RedisCacheAdapter<TFields> extends EntityCacheAdapter<TFiel
        this.context.ttlSecondsNegative
      );
    });
-    await wrapNativeRedisCall(() => redisTransaction.exec());
+    await redisTransaction.exec();
  }

  public async invalidateManyAsync<N extends keyof TFields>(
@@ -150,7 +147,7 @@ export default class RedisCacheAdapter<TFields> extends EntityCacheAdapter<TFiel
    }

    const redisKeys = fieldValues.map((fieldValue) => this.makeCacheKey(fieldName, fieldValue));
-    await wrapNativeRedisCall(() => this.context.redisClient.del(...redisKeys));
+    await this.context.redisClient.del(...redisKeys);
  }

  private makeCacheKey<N extends keyof TFields>(
@@ -1,46 +0,0 @@
-import { EntityCacheAdapterTransientError, ViewerContext } from '@expo/entity';
-import Redis from 'ioredis';
-import { URL } from 'url';
-
-import RedisCacheAdapter, { RedisCacheAdapterContext } from '../RedisCacheAdapter';
-import RedisTestEntity from '../testfixtures/RedisTestEntity';
-import { createRedisIntegrationTestEntityCompanionProvider } from '../testfixtures/createRedisIntegrationTestEntityCompanionProvider';
-
-class TestViewerContext extends ViewerContext {}
-
-describe(RedisCacheAdapter, () => {
-  let redisCacheAdapterContext: RedisCacheAdapterContext;
-
-  beforeAll(() => {
-    redisCacheAdapterContext = {
-      redisClient: new Redis(new URL(process.env.REDIS_URL!).toString()),
-      makeKeyFn(...parts: string[]): string {
-        const delimiter = ':';
-        const escapedParts = parts.map((part) =>
-          part.replace('\\', '\\\\').replace(delimiter, `\\${delimiter}`)
-        );
-        return escapedParts.join(delimiter);
-      },
-      cacheKeyPrefix: 'test-',
-      cacheKeyVersion: 1,
-      ttlSecondsPositive: 86400, // 1 day
-      ttlSecondsNegative: 600, // 10 minutes
-    };
-  });
-
-  beforeEach(async () => {
-    await redisCacheAdapterContext.redisClient.flushdb();
-  });
-
-  it('throws when redis is disconnected', async () => {
-    redisCacheAdapterContext.redisClient.disconnect();
-
-    const vc1 = new TestViewerContext(
-      createRedisIntegrationTestEntityCompanionProvider(redisCacheAdapterContext)
-    );
-
-    await expect(
-      RedisTestEntity.creator(vc1).setField('name', 'blah').enforceCreateAsync()
-    ).rejects.toThrow(EntityCacheAdapterTransientError);
-  });
-});
@@ -1,4 +1,10 @@
-import { CacheStatus, UUIDField, EntityConfiguration } from '@expo/entity';
+import {
+  CacheStatus,
+  UUIDField,
+  EntityConfiguration,
+  DatabaseAdapterFlavor,
+  CacheAdapterFlavor,
+} from '@expo/entity';
 import { Redis, Pipeline } from 'ioredis';
 import { mock, when, instance, anything, verify } from 'ts-mockito';

@@ -14,8 +20,8 @@ const entityConfiguration = new EntityConfiguration<BlahFields>({
  schema: {
    id: new UUIDField({ columnName: 'id', cache: true }),
  },
-  databaseAdapterFlavor: 'postgres',
-  cacheAdapterFlavor: 'redis',
+  databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+  cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
 });

 describe(RedisCacheAdapter, () => {
@@ -1,11 +0,0 @@
-import { EntityCacheAdapterTransientError } from '@expo/entity';
-
-export default async function wrapNativeRedisCall<T>(fn: () => Promise<T>): Promise<T> {
-  try {
-    return await fn();
-  } catch (e) {
-    const error = new EntityCacheAdapterTransientError(e.message, e);
-    error.stack = e.stack;
-    throw error;
-  }
-}
@@ -1,7 +1,5 @@
-/* eslint-disable tsdoc/syntax */
 /**
- * @packageDocumentation
- * @module @expo/entity-cache-adapter-redis
+ * Automatically generated by barrelsby.
 */

 export { default as RedisCacheAdapter } from './RedisCacheAdapter';
@@ -6,6 +6,8 @@ import {
  DateField,
  StringField,
  EntityConfiguration,
+  DatabaseAdapterFlavor,
+  CacheAdapterFlavor,
  EntityCompanionDefinition,
  Entity,
 } from '@expo/entity';
@@ -83,8 +85,8 @@ export const redisTestEntityConfiguration = new EntityConfiguration<RedisTestEnt
      columnName: 'date_field',
    }),
  },
-  databaseAdapterFlavor: 'postgres',
-  cacheAdapterFlavor: 'redis',
+  databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+  cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
 });

 const redisTestEntityCompanionDefinition = new EntityCompanionDefinition({
@@ -2,6 +2,8 @@ import {
  NoOpEntityMetricsAdapter,
  IEntityMetricsAdapter,
  EntityCompanionProvider,
+  CacheAdapterFlavor,
+  DatabaseAdapterFlavor,
  StubQueryContextProvider,
  StubDatabaseAdapterProvider,
 } from '@expo/entity';
@@ -15,22 +17,16 @@ export const createRedisIntegrationTestEntityCompanionProvider = (
 ): EntityCompanionProvider => {
  return new EntityCompanionProvider(
    metricsAdapter,
-    new Map([
-      [
-        'postgres',
-        {
-          adapterProvider: new StubDatabaseAdapterProvider(),
-          queryContextProvider: StubQueryContextProvider,
-        },
-      ],
-    ]),
-    new Map([
-      [
-        'redis',
-        {
-          cacheAdapterProvider: new RedisCacheAdapterProvider(redisCacheAdapterContext),
-        },
-      ],
-    ])
+    {
+      [DatabaseAdapterFlavor.POSTGRES]: {
+        adapterProvider: new StubDatabaseAdapterProvider(),
+        queryContextProvider: StubQueryContextProvider,
+      },
+    },
+    {
+      [CacheAdapterFlavor.REDIS]: {
+        cacheAdapterProvider: new RedisCacheAdapterProvider(redisCacheAdapterContext),
+      },
+    }
  );
 };
@@ -3,63 +3,6 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.

-## [0.14.1](https://github.com/expo/entity/compare/v0.14.0...v0.14.1) (2021-03-24)
-
-
-### Bug Fixes
-
-* typescript typedef of EntityMutationInfo ([#121](https://github.com/expo/entity/issues/121)) ([8e8f0dc](https://github.com/expo/entity/commit/8e8f0dc8636e343e29a6012d155e4111477a8989))
-
-
-
-
-
-# [0.14.0](https://github.com/expo/entity/compare/v0.13.0...v0.14.0) (2021-03-24)
-
-
-### Bug Fixes
-
-* mutation validator and trigger cyclic import structure ([#118](https://github.com/expo/entity/issues/118)) ([b11dbc0](https://github.com/expo/entity/commit/b11dbc087ba5ad13c748032698dd73279b7960b0))
-
-
-
-
-
-# [0.13.0](https://github.com/expo/entity/compare/v0.12.0...v0.13.0) (2021-02-12)
-
-
-### Features
-
-* add basic field type runtime validators ([#113](https://github.com/expo/entity/issues/113)) ([6c4d4b0](https://github.com/expo/entity/commit/6c4d4b03b5404dd776a12c5eb6f0af77a8c964f8))
-
-
-
-
-
-# [0.12.0](https://github.com/expo/entity/compare/v0.11.0...v0.12.0) (2021-01-22)
-
-
-### Bug Fixes
-
-* move runInTransaction to ViewerContext ([#108](https://github.com/expo/entity/issues/108)) ([b7309e1](https://github.com/expo/entity/commit/b7309e18a2dd780b64cd306d566de1f12bf8df3a))
-* remove cache and database adaptor flavor enums ([#109](https://github.com/expo/entity/issues/109)) ([72a77f8](https://github.com/expo/entity/commit/72a77f8b6893a4b76d3b1cce16659bdf3ce473ee))
-
-
-
-
-
-# [0.11.0](https://github.com/expo/entity/compare/v0.10.0...v0.11.0) (2020-12-24)
-
-
-### Features
-
-* better cache adapter error handling ([#102](https://github.com/expo/entity/issues/102)) ([15546aa](https://github.com/expo/entity/commit/15546aad97734ab9ac67f1c012485f096a0e94f1))
-* better database adapter error handling ([#101](https://github.com/expo/entity/issues/101)) ([5208aee](https://github.com/expo/entity/commit/5208aeedb0192f0460ba3d575770a04175f5c3aa))
-
-
-
-
-
 # [0.10.0](https://github.com/expo/entity/compare/v0.9.1...v0.10.0) (2020-11-17)

 **Note:** Version bump only for package @expo/entity-database-adapter-knex
@@ -29,7 +29,7 @@ export const createDefaultEntityCompanionProvider = (
    metricsAdapter,
    {
      // add the knex database adapter flavor
-      ['postgres']: {
+      [DatabaseAdapterFlavor.POSTGRES]: {
        adapter: PostgresEntityDatabaseAdapter,
        queryContextProvider: new PostgresEntityQueryContextProvider(knexInstance),
      },
@@ -1,6 +1,6 @@
 {
  "name": "@expo/entity-database-adapter-knex",
-  "version": "0.14.1",
+  "version": "0.10.0",
  "description": "Knex database adapter for @expo/entity",
  "files": [
    "build",
@@ -32,6 +32,6 @@
    "knex": "^0.21.5"
  },
  "devDependencies": {
-    "@expo/entity": "^0.14.1"
+    "@expo/entity": "^0.10.0"
  }
 }
@@ -10,8 +10,6 @@ import {
 } from '@expo/entity';
 import Knex from 'knex';

-import wrapNativePostgresCall from './errors/wrapNativePostgresCall';
-
 export default class PostgresEntityDatabaseAdapter<TFields> extends EntityDatabaseAdapter<TFields> {
  protected getFieldTransformerMap(): FieldTransformerMap {
    return new Map<string, FieldTransformer<any>>([
@@ -45,12 +43,10 @@ export default class PostgresEntityDatabaseAdapter<TFields> extends EntityDataba
    tableField: string,
    tableValues: readonly any[]
  ): Promise<object[]> {
-    return await wrapNativePostgresCall(() =>
-      queryInterface
-        .select()
-        .from(tableName)
-        .whereRaw('?? = ANY(?)', [tableField, tableValues as any[]])
-    );
+    return await queryInterface
+      .select()
+      .from(tableName)
+      .whereRaw('?? = ANY(?)', [tableField, tableValues as any[]]);
  }

  private applyQueryModifiersToQuery(
@@ -97,12 +93,12 @@ export default class PostgresEntityDatabaseAdapter<TFields> extends EntityDataba

    if (tableFieldMultiValueEqualityOperands.length > 0) {
      for (const { tableField, tableValues } of tableFieldMultiValueEqualityOperands) {
-        query = query.whereRaw('?? = ANY(?)', [tableField, [...tableValues]]);
+        query = query.whereRaw('?? = ANY(?)', [tableField, tableValues]);
      }
    }

    query = this.applyQueryModifiersToQuery(query, querySelectionModifiers);
-    return await wrapNativePostgresCall(() => query);
+    return await query;
  }

  protected async fetchManyByRawWhereClauseInternalAsync(
@@ -117,7 +113,7 @@ export default class PostgresEntityDatabaseAdapter<TFields> extends EntityDataba
      .from(tableName)
      .whereRaw(rawWhereClause, bindings as any);
    query = this.applyQueryModifiersToQuery(query, querySelectionModifiers);
-    return await wrapNativePostgresCall(() => query);
+    return await query;
  }

  protected async insertInternalAsync(
@@ -125,9 +121,7 @@ export default class PostgresEntityDatabaseAdapter<TFields> extends EntityDataba
    tableName: string,
    object: object
  ): Promise<object[]> {
-    return await wrapNativePostgresCall(() =>
-      queryInterface.insert(object).into(tableName).returning('*')
-    );
+    return await queryInterface.insert(object).into(tableName).returning('*');
  }

  protected async updateInternalAsync(
@@ -137,9 +131,11 @@ export default class PostgresEntityDatabaseAdapter<TFields> extends EntityDataba
    id: any,
    object: object
  ): Promise<object[]> {
-    return await wrapNativePostgresCall(() =>
-      queryInterface.update(object).into(tableName).where(tableIdField, id).returning('*')
-    );
+    return await queryInterface
+      .update(object)
+      .into(tableName)
+      .where(tableIdField, id)
+      .returning('*');
  }

  protected async deleteInternalAsync(
@@ -148,8 +144,6 @@ export default class PostgresEntityDatabaseAdapter<TFields> extends EntityDataba
    tableIdField: string,
    id: any
  ): Promise<number> {
-    return await wrapNativePostgresCall(() =>
-      queryInterface.into(tableName).where(tableIdField, id).del()
-    );
+    return await queryInterface.into(tableName).where(tableIdField, id).del();
  }
 }
@@ -94,7 +94,7 @@ describe('postgres entity integration', () => {
    const errorToThrow = new Error('Intentional error');

    await expect(
-      vc1.runInTransactionForDatabaseAdaptorFlavorAsync('postgres', async (queryContext) => {
+      PostgresTestEntity.runInTransactionAsync(vc1, async (queryContext) => {
        // put another in the DB that will be rolled back due to error thrown
        await enforceAsyncResult(
          PostgresTestEntity.creator(vc1, queryContext).setField('name', 'hello').createAsync()
@@ -1,170 +0,0 @@
-import { ViewerContext } from '@expo/entity';
-import {
-  EntityDatabaseAdapterCheckConstraintError,
-  EntityDatabaseAdapterExclusionConstraintError,
-  EntityDatabaseAdapterForeignKeyConstraintError,
-  EntityDatabaseAdapterNotNullConstraintError,
-  EntityDatabaseAdapterTransientError,
-  EntityDatabaseAdapterUniqueConstraintError,
-  EntityDatabaseAdapterUnknownError,
-} from '@expo/entity/build/errors/EntityDatabaseAdapterError';
-import Knex from 'knex';
-
-import ErrorsTestEntity from '../testfixtures/ErrorsTestEntity';
-import { createKnexIntegrationTestEntityCompanionProvider } from '../testfixtures/createKnexIntegrationTestEntityCompanionProvider';
-
-describe('postgres errors', () => {
-  let knexInstance: Knex;
-
-  beforeAll(() => {
-    knexInstance = Knex({
-      client: 'pg',
-      connection: {
-        user: process.env.PGUSER,
-        password: process.env.PGPASSWORD,
-        host: 'localhost',
-        port: parseInt(process.env.PGPORT!, 10),
-        database: process.env.PGDATABASE,
-      },
-    });
-  });
-
-  beforeEach(async () => {
-    await ErrorsTestEntity.createOrTruncatePostgresTable(knexInstance);
-  });
-
-  afterAll(async () => {
-    await ErrorsTestEntity.dropPostgresTable(knexInstance);
-    await knexInstance.destroy();
-  });
-
-  it('throws EntityDatabaseAdapterTransientError on Knex timeout', async () => {
-    const vc = new ViewerContext(createKnexIntegrationTestEntityCompanionProvider(knexInstance));
-    await ErrorsTestEntity.creator(vc)
-      .setField('id', 1)
-      .setField('fieldNonNull', 'hello')
-      .enforceCreateAsync();
-
-    const shortTimeoutKnexInstance = Knex({
-      client: 'pg',
-      connection: {
-        user: process.env.PGUSER,
-        password: process.env.PGPASSWORD,
-        host: 'localhost',
-        port: parseInt(process.env.PGPORT!, 10),
-        database: process.env.PGDATABASE,
-      },
-      acquireConnectionTimeout: 1,
-    });
-    const vc2 = new ViewerContext(
-      createKnexIntegrationTestEntityCompanionProvider(shortTimeoutKnexInstance)
-    );
-    await expect(ErrorsTestEntity.loader(vc2).enforcing().loadByIDAsync(1)).rejects.toThrow(
-      EntityDatabaseAdapterTransientError
-    );
-    await shortTimeoutKnexInstance.destroy();
-  });
-
-  it('throws EntityDatabaseAdapterNotNullConstraintError when not null is violated', async () => {
-    const vc = new ViewerContext(createKnexIntegrationTestEntityCompanionProvider(knexInstance));
-    await expect(
-      ErrorsTestEntity.creator(vc)
-        .setField('id', 1)
-        .setField('fieldNonNull', null as any)
-        .enforceCreateAsync()
-    ).rejects.toThrow(EntityDatabaseAdapterNotNullConstraintError);
-  });
-
-  it('throws EntityDatabaseAdapterForeignKeyConstraintError when foreign key is violated', async () => {
-    const vc = new ViewerContext(createKnexIntegrationTestEntityCompanionProvider(knexInstance));
-    await expect(
-      ErrorsTestEntity.creator(vc)
-        .setField('id', 1)
-        .setField('fieldNonNull', 'hello')
-        .setField('fieldForeignKey', 2)
-        .enforceCreateAsync()
-    ).rejects.toThrow(EntityDatabaseAdapterForeignKeyConstraintError);
-  });
-
-  it('throws EntityDatabaseAdapterUniqueConstraintError when primary key unique constraint is violated', async () => {
-    const vc = new ViewerContext(createKnexIntegrationTestEntityCompanionProvider(knexInstance));
-
-    await ErrorsTestEntity.creator(vc)
-      .setField('id', 1)
-      .setField('fieldNonNull', 'hello')
-      .enforceCreateAsync();
-
-    await expect(
-      ErrorsTestEntity.creator(vc)
-        .setField('id', 1)
-        .setField('fieldNonNull', 'hello')
-        .enforceCreateAsync()
-    ).rejects.toThrow(EntityDatabaseAdapterUniqueConstraintError);
-  });
-
-  it('throws EntityDatabaseAdapterUniqueConstraintError when unique constraint is violated', async () => {
-    const vc = new ViewerContext(createKnexIntegrationTestEntityCompanionProvider(knexInstance));
-    await ErrorsTestEntity.creator(vc)
-      .setField('id', 2)
-      .setField('fieldNonNull', 'hello')
-      .setField('fieldUnique', 'hello')
-      .enforceCreateAsync();
-
-    await expect(
-      ErrorsTestEntity.creator(vc)
-        .setField('id', 1)
-        .setField('fieldNonNull', 'hello')
-        .setField('fieldUnique', 'hello')
-        .enforceCreateAsync()
-    ).rejects.toThrow(EntityDatabaseAdapterUniqueConstraintError);
-  });
-
-  it('throws EntityDatabaseAdapterCheckConstraintError when check constraint is violated', async () => {
-    const vc = new ViewerContext(createKnexIntegrationTestEntityCompanionProvider(knexInstance));
-    await expect(
-      ErrorsTestEntity.creator(vc)
-        .setField('id', 1)
-        .setField('fieldNonNull', 'hello')
-        .setField('checkLessThan5', 2)
-        .enforceCreateAsync()
-    ).resolves.toBeTruthy();
-
-    await expect(
-      ErrorsTestEntity.creator(vc)
-        .setField('id', 2)
-        .setField('fieldNonNull', 'hello')
-        .setField('checkLessThan5', 10)
-        .enforceCreateAsync()
-    ).rejects.toThrow(EntityDatabaseAdapterCheckConstraintError);
-  });
-
-  it('throws EntityDatabaseAdapterExclusionConstraintError when exclusion constraint is violated', async () => {
-    const vc = new ViewerContext(createKnexIntegrationTestEntityCompanionProvider(knexInstance));
-    await expect(
-      ErrorsTestEntity.creator(vc)
-        .setField('id', 1)
-        .setField('fieldNonNull', 'hello')
-        .setField('fieldExclusion', 'what')
-        .enforceCreateAsync()
-    ).resolves.toBeTruthy();
-
-    await expect(
-      ErrorsTestEntity.creator(vc)
-        .setField('id', 2)
-        .setField('fieldNonNull', 'hello')
-        .setField('fieldExclusion', 'what')
-        .enforceCreateAsync()
-    ).rejects.toThrow(EntityDatabaseAdapterExclusionConstraintError);
-  });
-
-  it('throws EntityDatabaseAdapterUnknownError otherwise', async () => {
-    const vc = new ViewerContext(createKnexIntegrationTestEntityCompanionProvider(knexInstance));
-    await expect(
-      ErrorsTestEntity.creator(vc)
-        .setField('id', 1)
-        .setField('fieldNonNull', 'hello')
-        .setField('nonExistentColumn', 'what')
-        .enforceCreateAsync()
-    ).rejects.toThrow(EntityDatabaseAdapterUnknownError);
-  });
-});
@@ -1,50 +0,0 @@
-import {
-  EntityDatabaseAdapterError,
-  EntityDatabaseAdapterCheckConstraintError,
-  EntityDatabaseAdapterExclusionConstraintError,
-  EntityDatabaseAdapterForeignKeyConstraintError,
-  EntityDatabaseAdapterNotNullConstraintError,
-  EntityDatabaseAdapterTransientError,
-  EntityDatabaseAdapterUniqueConstraintError,
-  EntityDatabaseAdapterUnknownError,
-} from '@expo/entity';
-import { KnexTimeoutError } from 'knex';
-
-function wrapNativePostgresError(
-  error: Error & { code: string | undefined }
-): EntityDatabaseAdapterError & Error {
-  const ret = translatePostgresError(error);
-  ret.stack = error.stack;
-  return ret;
-}
-
-function translatePostgresError(
-  error: Error & { code: string | undefined }
-): EntityDatabaseAdapterError & Error {
-  if (error instanceof KnexTimeoutError) {
-    return new EntityDatabaseAdapterTransientError(error.message, error);
-  }
-
-  switch (error.code) {
-    case '23502':
-      return new EntityDatabaseAdapterNotNullConstraintError(error.message, error);
-    case '23503':
-      return new EntityDatabaseAdapterForeignKeyConstraintError(error.message, error);
-    case '23505':
-      return new EntityDatabaseAdapterUniqueConstraintError(error.message, error);
-    case '23514':
-      return new EntityDatabaseAdapterCheckConstraintError(error.message, error);
-    case '23P01':
-      return new EntityDatabaseAdapterExclusionConstraintError(error.message, error);
-    default:
-      return new EntityDatabaseAdapterUnknownError(error.message, error);
-  }
-}
-
-export default async function wrapNativePostgresCall<T>(fn: () => Promise<T>): Promise<T> {
-  try {
-    return await fn();
-  } catch (e) {
-    throw wrapNativePostgresError(e);
-  }
-}
@@ -1,9 +1,3 @@
-/* eslint-disable tsdoc/syntax */
-/**
- * @packageDocumentation
- * @module @expo/entity-database-adapter-knex
- */
-
 export { default as PostgresEntityDatabaseAdapter } from './PostgresEntityDatabaseAdapter';
 export { default as PostgresEntityDatabaseAdapterProvider } from './PostgresEntityDatabaseAdapterProvider';
 export { default as PostgresEntityQueryContextProvider } from './PostgresEntityQueryContextProvider';
@@ -1,177 +0,0 @@
-import {
-  AlwaysAllowPrivacyPolicyRule,
-  EntityPrivacyPolicy,
-  ViewerContext,
-  StringField,
-  EntityConfiguration,
-  EntityCompanionDefinition,
-  Entity,
-  NumberField,
-} from '@expo/entity';
-import Knex from 'knex';
-
-type ErrorsTestEntityFields = {
-  id: number;
-  fieldNonNull: string;
-  fieldForeignKey: number | null;
-  fieldUnique: string | null;
-  checkLessThan5: number | null;
-  fieldExclusion: string | null;
-  nonExistentColumn: string | null;
-};
-
-const foreignTableName = 'foreign_table';
-
-export default class ErrorsTestEntity extends Entity<
-  ErrorsTestEntityFields,
-  number,
-  ViewerContext
-> {
-  static getCompanionDefinition(): EntityCompanionDefinition<
-    ErrorsTestEntityFields,
-    number,
-    ViewerContext,
-    ErrorsTestEntity,
-    ErrorsTestEntityPrivacyPolicy
-  > {
-    return errorsTestEntityCompanionDefinition;
-  }
-
-  public static async createOrTruncatePostgresTable(knex: Knex): Promise<void> {
-    await knex.raw('CREATE EXTENSION IF NOT EXISTS "btree_gist"'); // for gist exclusion on varchar
-
-    const tableName = this.getCompanionDefinition().entityConfiguration.tableName;
-
-    const hasForeignTable = await knex.schema.hasTable(foreignTableName);
-    if (!hasForeignTable) {
-      await knex.schema.createTable(foreignTableName, (table) => {
-        table.integer('id').primary();
-      });
-    }
-
-    const hasTable = await knex.schema.hasTable(tableName);
-    if (!hasTable) {
-      await knex.schema.createTable(tableName, (table) => {
-        table.integer('id').primary();
-        table.string('field_non_null').notNullable();
-        table.integer('field_foreign_key').references(`${foreignTableName}.id`);
-        table.string('field_unique').unique();
-        table.integer('check_less_than_5');
-        table.string('field_exclusion');
-      });
-
-      await knex.raw(
-        `
-        ALTER TABLE :tableName:
-        ADD CONSTRAINT check_less_than_5_check_constraint
-        CHECK (check_less_than_5 IS NULL OR check_less_than_5 < 5);`,
-        {
-          tableName,
-        }
-      );
-
-      await knex.raw(
-        `
-        ALTER TABLE :tableName:
-        ADD CONSTRAINT field_exclusion_exclusion_constraint
-        EXCLUDE USING gist (field_exclusion WITH =);
-        `,
-        {
-          tableName,
-        }
-      );
-    }
-
-    await knex(tableName).delete();
-    await knex(foreignTableName).delete();
-  }
-
-  public static async dropPostgresTable(knex: Knex): Promise<void> {
-    const tableName = this.getCompanionDefinition().entityConfiguration.tableName;
-    const hasTable = await knex.schema.hasTable(tableName);
-    if (hasTable) {
-      await knex.schema.dropTable(tableName);
-    }
-
-    const hasForeignTable = await knex.schema.hasTable(foreignTableName);
-    if (hasForeignTable) {
-      await knex.schema.dropTable(foreignTableName);
-    }
-  }
-}
-
-class ErrorsTestEntityPrivacyPolicy extends EntityPrivacyPolicy<
-  ErrorsTestEntityFields,
-  number,
-  ViewerContext,
-  ErrorsTestEntity
-> {
-  protected readonly createRules = [
-    new AlwaysAllowPrivacyPolicyRule<
-      ErrorsTestEntityFields,
-      number,
-      ViewerContext,
-      ErrorsTestEntity
-    >(),
-  ];
-  protected readonly readRules = [
-    new AlwaysAllowPrivacyPolicyRule<
-      ErrorsTestEntityFields,
-      number,
-      ViewerContext,
-      ErrorsTestEntity
-    >(),
-  ];
-  protected readonly updateRules = [
-    new AlwaysAllowPrivacyPolicyRule<
-      ErrorsTestEntityFields,
-      number,
-      ViewerContext,
-      ErrorsTestEntity
-    >(),
-  ];
-  protected readonly deleteRules = [
-    new AlwaysAllowPrivacyPolicyRule<
-      ErrorsTestEntityFields,
-      number,
-      ViewerContext,
-      ErrorsTestEntity
-    >(),
-  ];
-}
-
-export const ErrorsTestEntityConfiguration = new EntityConfiguration<ErrorsTestEntityFields>({
-  idField: 'id',
-  tableName: 'postgres_test_entities',
-  schema: {
-    id: new NumberField({
-      columnName: 'id',
-    }),
-    fieldNonNull: new StringField({
-      columnName: 'field_non_null',
-    }),
-    fieldForeignKey: new NumberField({
-      columnName: 'field_foreign_key',
-    }),
-    fieldUnique: new StringField({
-      columnName: 'field_unique',
-    }),
-    checkLessThan5: new NumberField({
-      columnName: 'check_less_than_5',
-    }),
-    fieldExclusion: new StringField({
-      columnName: 'field_exclusion',
-    }),
-    nonExistentColumn: new StringField({
-      columnName: 'non_existent_column',
-    }),
-  },
-  databaseAdapterFlavor: 'postgres',
-  cacheAdapterFlavor: 'redis',
-});
-
-const errorsTestEntityCompanionDefinition = new EntityCompanionDefinition({
-  entityClass: ErrorsTestEntity,
-  entityConfiguration: ErrorsTestEntityConfiguration,
-  privacyPolicyClass: ErrorsTestEntityPrivacyPolicy,
-});
@@ -4,6 +4,8 @@ import {
  ViewerContext,
  StringField,
  EntityConfiguration,
+  DatabaseAdapterFlavor,
+  CacheAdapterFlavor,
  EntityCompanionDefinition,
  Entity,
  NumberField,
@@ -102,8 +104,8 @@ export const invalidTestEntityConfiguration = new EntityConfiguration<InvalidTes
      columnName: 'name',
    }),
  },
-  databaseAdapterFlavor: 'postgres',
-  cacheAdapterFlavor: 'redis',
+  databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+  cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
 });

 const invalidTestEntityCompanionDefinition = new EntityCompanionDefinition({
@@ -11,6 +11,8 @@ import {
  DateField,
  MaybeJSONArrayField,
  EntityConfiguration,
+  DatabaseAdapterFlavor,
+  CacheAdapterFlavor,
  EntityCompanionDefinition,
  Entity,
 } from '@expo/entity';
@@ -148,8 +150,8 @@ export const postgresTestEntityConfiguration = new EntityConfiguration<PostgresT
      columnName: 'maybe_json_array_field',
    }),
  },
-  databaseAdapterFlavor: 'postgres',
-  cacheAdapterFlavor: 'redis',
+  databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+  cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
 });

 const postgresTestEntityCompanionDefinition = new EntityCompanionDefinition({
@@ -5,12 +5,13 @@ import {
  UUIDField,
  StringField,
  EntityConfiguration,
+  DatabaseAdapterFlavor,
+  CacheAdapterFlavor,
  EntityCompanionDefinition,
  Entity,
  EntityMutationTrigger,
  EntityQueryContext,
  EntityNonTransactionalMutationTrigger,
-  EntityMutationInfo,
 } from '@expo/entity';
 import Knex from 'knex';

@@ -110,13 +111,7 @@ class ThrowConditionallyTrigger extends EntityMutationTrigger<
  async executeAsync(
    _viewerContext: ViewerContext,
    _queryContext: EntityQueryContext,
-    entity: PostgresTriggerTestEntity,
-    _mutationInfo: EntityMutationInfo<
-      PostgresTriggerTestEntityFields,
-      string,
-      ViewerContext,
-      PostgresTriggerTestEntity
-    >
+    entity: PostgresTriggerTestEntity
  ): Promise<void> {
    if (entity.getField(this.fieldName) === this.badValue) {
      throw new Error(`${this.fieldName} cannot have value ${this.badValue}`);
@@ -158,15 +153,15 @@ export const postgresTestEntityConfiguration = new EntityConfiguration<
      columnName: 'name',
    }),
  },
-  databaseAdapterFlavor: 'postgres',
-  cacheAdapterFlavor: 'redis',
+  databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+  cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
 });

 const postgresTestEntityCompanionDefinition = new EntityCompanionDefinition({
  entityClass: PostgresTriggerTestEntity,
  entityConfiguration: postgresTestEntityConfiguration,
  privacyPolicyClass: PostgresTriggerTestEntityPrivacyPolicy,
-  mutationTriggers: () => ({
+  mutationTriggers: {
    beforeCreate: [new ThrowConditionallyTrigger('name', 'beforeCreate')],
    afterCreate: [new ThrowConditionallyTrigger('name', 'afterCreate')],
    beforeUpdate: [new ThrowConditionallyTrigger('name', 'beforeUpdate')],
@@ -176,5 +171,5 @@ const postgresTestEntityCompanionDefinition = new EntityCompanionDefinition({
    beforeAll: [new ThrowConditionallyTrigger('name', 'beforeAll')],
    afterAll: [new ThrowConditionallyTrigger('name', 'afterAll')],
    afterCommit: [new ThrowConditionallyNonTransactionalTrigger('name', 'afterCommit')],
-  }),
+  },
 });
@@ -5,11 +5,12 @@ import {
  UUIDField,
  StringField,
  EntityConfiguration,
+  DatabaseAdapterFlavor,
+  CacheAdapterFlavor,
  EntityCompanionDefinition,
  Entity,
  EntityMutationTrigger,
  EntityQueryContext,
-  EntityMutationInfo,
 } from '@expo/entity';
 import Knex from 'knex';

@@ -112,13 +113,7 @@ class ThrowConditionallyTrigger extends EntityMutationTrigger<
  async executeAsync(
    _viewerContext: ViewerContext,
    _queryContext: EntityQueryContext,
-    entity: PostgresValidatorTestEntity,
-    _mutationInfo: EntityMutationInfo<
-      PostgresValidatorTestEntityFields,
-      string,
-      ViewerContext,
-      PostgresValidatorTestEntity
-    >
+    entity: PostgresValidatorTestEntity
  ): Promise<void> {
    if (entity.getField(this.fieldName) === this.badValue) {
      throw new Error(`${this.fieldName} cannot have value ${this.badValue}`);
@@ -140,13 +135,13 @@ export const postgresTestEntityConfiguration = new EntityConfiguration<
      columnName: 'name',
    }),
  },
-  databaseAdapterFlavor: 'postgres',
-  cacheAdapterFlavor: 'redis',
+  databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+  cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
 });

 const postgresTestEntityCompanionDefinition = new EntityCompanionDefinition({
  entityClass: PostgresValidatorTestEntity,
  entityConfiguration: postgresTestEntityConfiguration,
  privacyPolicyClass: PostgresValidatorTestEntityPrivacyPolicy,
-  mutationValidators: () => [new ThrowConditionallyTrigger('name', 'beforeCreateAndBeforeUpdate')],
+  mutationValidators: [new ThrowConditionallyTrigger('name', 'beforeCreateAndBeforeUpdate')],
 });
@@ -2,6 +2,8 @@ import {
  NoOpEntityMetricsAdapter,
  IEntityMetricsAdapter,
  EntityCompanionProvider,
+  CacheAdapterFlavor,
+  DatabaseAdapterFlavor,
  InMemoryFullCacheStubCacheAdapterProvider,
 } from '@expo/entity';
 import Knex from 'knex';
@@ -15,22 +17,16 @@ export const createKnexIntegrationTestEntityCompanionProvider = (
 ): EntityCompanionProvider => {
  return new EntityCompanionProvider(
    metricsAdapter,
-    new Map([
-      [
-        'postgres',
-        {
-          adapterProvider: new PostgresEntityDatabaseAdapterProvider(),
-          queryContextProvider: new PostgresEntityQueryContextProvider(knex),
-        },
-      ],
-    ]),
-    new Map([
-      [
-        'redis',
-        {
-          cacheAdapterProvider: new InMemoryFullCacheStubCacheAdapterProvider(),
-        },
-      ],
-    ])
+    {
+      [DatabaseAdapterFlavor.POSTGRES]: {
+        adapterProvider: new PostgresEntityDatabaseAdapterProvider(),
+        queryContextProvider: new PostgresEntityQueryContextProvider(knex),
+      },
+    },
+    {
+      [CacheAdapterFlavor.REDIS]: {
+        cacheAdapterProvider: new InMemoryFullCacheStubCacheAdapterProvider(),
+      },
+    }
  );
 };
@@ -3,55 +3,6 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.

-## [0.14.1](https://github.com/expo/entity/compare/v0.14.0...v0.14.1) (2021-03-24)
-
-**Note:** Version bump only for package @expo/entity-example
-
-
-
-
-
-# [0.14.0](https://github.com/expo/entity/compare/v0.13.0...v0.14.0) (2021-03-24)
-
-**Note:** Version bump only for package @expo/entity-example
-
-
-
-
-
-# [0.13.0](https://github.com/expo/entity/compare/v0.12.0...v0.13.0) (2021-02-12)
-
-
-### Features
-
-* add basic field type runtime validators ([#113](https://github.com/expo/entity/issues/113)) ([6c4d4b0](https://github.com/expo/entity/commit/6c4d4b03b5404dd776a12c5eb6f0af77a8c964f8))
-
-
-
-
-
-# [0.12.0](https://github.com/expo/entity/compare/v0.11.0...v0.12.0) (2021-01-22)
-
-
-### Bug Fixes
-
-* remove cache and database adaptor flavor enums ([#109](https://github.com/expo/entity/issues/109)) ([72a77f8](https://github.com/expo/entity/commit/72a77f8b6893a4b76d3b1cce16659bdf3ce473ee))
-
-
-
-
-
-# [0.11.0](https://github.com/expo/entity/compare/v0.10.0...v0.11.0) (2020-12-24)
-
-
-### Bug Fixes
-
-* remove any cast from EntityLoader ([#100](https://github.com/expo/entity/issues/100)) ([b8e07f9](https://github.com/expo/entity/commit/b8e07f9ddc4077768980c000d61f5ddcc824e2e3))
-
-
-
-
-
 # [0.10.0](https://github.com/expo/entity/compare/v0.9.1...v0.10.0) (2020-11-17)

 **Note:** Version bump only for package @expo/entity-example
@@ -1,7 +1,7 @@
 {
  "name": "@expo/entity-example",
  "private": true,
-  "version": "0.14.1",
+  "version": "0.10.0",
  "description": "An example integration of the @expo/entity framework",
  "scripts": {
    "tsc": "tsc",
@@ -22,7 +22,7 @@
  "author": "Expo",
  "license": "MIT",
  "dependencies": {
-    "@expo/entity": "^0.14.1",
+    "@expo/entity": "^0.10.0",
    "apollo-server-koa": "^2.16.1",
    "graphql": "^15.3.0",
    "koa": "^2.13.0",
@@ -1,5 +1,4 @@
 import { createUnitTestEntityCompanionProvider } from '@expo/entity';
-import { v4 as uuidv4 } from 'uuid';

 import NoteEntity from '../entities/NoteEntity';
 import { UserViewerContext } from '../viewerContexts';
@@ -7,18 +6,17 @@ import { UserViewerContext } from '../viewerContexts';
 describe(NoteEntity, () => {
  test('demonstrate usage of business logic test utilities', async () => {
    const companionProvider = createUnitTestEntityCompanionProvider();
-    const userId = uuidv4();
-    const viewerContext = new UserViewerContext(companionProvider, userId);
+    const viewerContext = new UserViewerContext(companionProvider, '4');

    const createdEntityResult = await NoteEntity.creator(viewerContext)
-      .setField('userID', userId)
+      .setField('userID', '4')
      .setField('body', 'image')
      .setField('title', 'page')
      .createAsync();
    expect(createdEntityResult.ok).toBe(true);

    const createdEntityResultImpersonate = await NoteEntity.creator(viewerContext)
-      .setField('userID', uuidv4()) // a different user
+      .setField('userID', '5')
      .setField('body', 'image')
      .setField('title', 'page')
      .createAsync();
@@ -1,6 +1,5 @@
 import http from 'http';
 import request from 'supertest';
-import { v4 as uuidv4 } from 'uuid';

 import app from '../app';

@@ -8,15 +7,14 @@ describe('graphql', () => {
  it('allows CRUD of user notes', async () => {
    const server = request(http.createServer(app.callback()));

-    const userId = uuidv4();
-    const responseEmpty = await server.post('/graphql').set('totally-secure-user-id', userId).send({
+    const responseEmpty = await server.post('/graphql').set('totally-secure-user-id', '4').send({
      query: `query { me { notes { id } } }`,
    });
    expect(responseEmpty.body.data.me.notes).toEqual([]);

    const createResponse1 = await server
      .post('/graphql')
-      .set('totally-secure-user-id', userId)
+      .set('totally-secure-user-id', '4')
      .send({
        query: `mutation($note: NoteInput!) { addNote(note: $note) { id, title, body } }`,
        variables: {
@@ -33,7 +31,7 @@ describe('graphql', () => {

    const createResponse2 = await server
      .post('/graphql')
-      .set('totally-secure-user-id', userId)
+      .set('totally-secure-user-id', '4')
      .send({
        query: `mutation($note: NoteInput!) { addNote(note: $note) { id, title, body } }`,
        variables: {
@@ -44,17 +42,14 @@ describe('graphql', () => {
        },
      });

-    const responseLength2 = await server
-      .post('/graphql')
-      .set('totally-secure-user-id', userId)
-      .send({
-        query: `query { me { notes { id } } }`,
-      });
+    const responseLength2 = await server.post('/graphql').set('totally-secure-user-id', '4').send({
+      query: `query { me { notes { id } } }`,
+    });
    expect(responseLength2.body.data.me.notes).toHaveLength(2);

    const responseGetSingle = await server
      .post('/graphql')
-      .set('totally-secure-user-id', userId)
+      .set('totally-secure-user-id', '4')
      .send({
        query: `query($id: ID!) { noteByID(id: $id) { id, title, body } }`,
        variables: {
@@ -69,7 +64,7 @@ describe('graphql', () => {

    const responseUpdateSingle = await server
      .post('/graphql')
-      .set('totally-secure-user-id', userId)
+      .set('totally-secure-user-id', '4')
      .send({
        query: `mutation($id: ID!, $note: NoteInput!) { updateNote(id: $id, note: $note) { id, title, body } }`,
        variables: {
@@ -89,7 +84,7 @@ describe('graphql', () => {

    const responseDeleteSingle = await server
      .post('/graphql')
-      .set('totally-secure-user-id', userId)
+      .set('totally-secure-user-id', '4')
      .send({
        query: `mutation($id: ID!) { deleteNote(id: $id) { id, title, body } }`,
        variables: {
@@ -107,12 +102,9 @@ describe('graphql', () => {
      body: 'boarding',
    });

-    const responseLength1 = await server
-      .post('/graphql')
-      .set('totally-secure-user-id', userId)
-      .send({
-        query: `query { me { notes { id } } }`,
-      });
+    const responseLength1 = await server.post('/graphql').set('totally-secure-user-id', '4').send({
+      query: `query { me { notes { id } } }`,
+    });
    expect(responseLength1.body.data.me.notes).toHaveLength(1);
  });

@@ -135,11 +127,9 @@ describe('graphql', () => {
  it('disallows cross-user note impersonation', async () => {
    const server = request(http.createServer(app.callback()));

-    const userId = uuidv4();
-    const userId2 = uuidv4();
    const createResponse1 = await server
      .post('/graphql')
-      .set('totally-secure-user-id', userId)
+      .set('totally-secure-user-id', '4')
      .send({
        query: `mutation($note: NoteInput!) { addNote(note: $note) { id, title, body } }`,
        variables: {
@@ -153,7 +143,7 @@ describe('graphql', () => {
    // notes are public
    const responseGetSingle = await server
      .post('/graphql')
-      .set('totally-secure-user-id', userId2)
+      .set('totally-secure-user-id', '5')
      .send({
        query: `query($id: ID!) { noteByID(id: $id) { id, title, body } }`,
        variables: {
@@ -169,7 +159,7 @@ describe('graphql', () => {
    // but can only be updated by the owner
    const responseUpdateSingle = await server
      .post('/graphql')
-      .set('totally-secure-user-id', userId2)
+      .set('totally-secure-user-id', '5')
      .send({
        query: `mutation($id: ID!, $note: NoteInput!) { updateNote(id: $id, note: $note) { id, title, body } }`,
        variables: {
@@ -1,6 +1,5 @@
 import http from 'http';
 import request from 'supertest';
-import { v4 as uuidv4 } from 'uuid';

 import app from '../app';

@@ -12,74 +11,59 @@ describe('notesRouter', () => {

  it('allows CRUD of user notes', async () => {
    const server = request(http.createServer(app.callback()));
-
-    const userId = uuidv4();
-
-    const responseEmpty = await server.get('/notes/').set('totally-secure-user-id', userId).send();
+    const responseEmpty = await server.get('/notes/').set('totally-secure-user-id', '4').send();
    expect(responseEmpty.body.notes).toEqual([]);

-    const createResponse1 = await server
-      .post('/notes/')
-      .set('totally-secure-user-id', userId)
-      .send({
-        title: 'track',
-        body: 'language',
-      });
+    const createResponse1 = await server.post('/notes/').set('totally-secure-user-id', '4').send({
+      title: 'track',
+      body: 'language',
+    });
    expect(createResponse1.body.note).toMatchObject({
-      userID: userId,
+      userID: '4',
      title: 'track',
      body: 'language',
    });

-    const createResponse2 = await server
-      .post('/notes/')
-      .set('totally-secure-user-id', userId)
-      .send({
-        title: 'nine',
-        body: 'lotion',
-      });
+    const createResponse2 = await server.post('/notes/').set('totally-secure-user-id', '4').send({
+      title: 'nine',
+      body: 'lotion',
+    });

-    const responseLength2 = await server
-      .get('/notes/')
-      .set('totally-secure-user-id', userId)
-      .send();
+    const responseLength2 = await server.get('/notes/').set('totally-secure-user-id', '4').send();
    expect(responseLength2.body.notes).toHaveLength(2);

    const responseGetSingle = await server
      .get(`/notes/${createResponse2.body.note.id}`)
-      .set('totally-secure-user-id', userId)
+      .set('totally-secure-user-id', '4')
      .send();
    expect(responseGetSingle.body.note).toMatchObject({
      id: createResponse2.body.note.id,
-      userID: userId,
+      userID: '4',
      title: 'nine',
      body: 'lotion',
    });

    const responseUpdateSingle = await server
      .put(`/notes/${createResponse2.body.note.id}`)
-      .set('totally-secure-user-id', userId)
+      .set('totally-secure-user-id', '4')
      .send({
        title: 'wave',
        body: 'boarding',
      });
    expect(responseUpdateSingle.body.note).toMatchObject({
      id: responseGetSingle.body.note.id,
-      userID: userId,
+      userID: '4',
      title: 'wave',
      body: 'boarding',
    });

    const responseDeleteSingle = await server
      .delete(`/notes/${createResponse2.body.note.id}`)
-      .set('totally-secure-user-id', userId)
+      .set('totally-secure-user-id', '4')
      .send();
    expect(responseDeleteSingle.body.status).toEqual('ok');

-    const responseLength1 = await server
-      .get('/notes/')
-      .set('totally-secure-user-id', userId)
-      .send();
+    const responseLength1 = await server.get('/notes/').set('totally-secure-user-id', '4').send();
    expect(responseLength1.body.notes).toHaveLength(1);
  });

@@ -95,28 +79,23 @@ describe('notesRouter', () => {

  it('disallows cross-user note impersonation', async () => {
    const server = request(http.createServer(app.callback()));
-    const userId = uuidv4();
-    const userId2 = uuidv4();
-    const createResponse1 = await server
-      .post('/notes/')
-      .set('totally-secure-user-id', userId)
-      .send({
-        title: 'track',
-        body: 'language',
-      });
+    const createResponse1 = await server.post('/notes/').set('totally-secure-user-id', '4').send({
+      title: 'track',
+      body: 'language',
+    });
    expect(createResponse1.ok).toBe(true);

    // notes are public
    const responseGetSingleOtherUser = await server
      .get(`/notes/${createResponse1.body.note.id}`)
-      .set('totally-secure-user-id', userId2)
+      .set('totally-secure-user-id', '5')
      .send();
    expect(responseGetSingleOtherUser.ok).toBe(true);

    // but can only be updated by the owner
    const responseUpdateSingle = await server
      .put(`/notes/${createResponse1.body.note.id}`)
-      .set('totally-secure-user-id', userId2)
+      .set('totally-secure-user-id', '5')
      .send({
        title: 'wave',
        body: 'boarding',
@@ -3,6 +3,8 @@ import {
  NoOpEntityMetricsAdapter,
  EntityCompanionProvider,
  InMemoryFullCacheStubCacheAdapterProvider,
+  CacheAdapterFlavor,
+  DatabaseAdapterFlavor,
 } from '@expo/entity';

 import { InMemoryDatabaseAdapterProvider } from './adapters/InMemoryDatabaseAdapter';
@@ -19,26 +21,20 @@ export const createEntityCompanionProvider = (
 ): EntityCompanionProvider => {
  return new EntityCompanionProvider(
    metricsAdapter,
-    new Map([
-      [
-        'postgres',
-        // An in-memory DB is used for demonstration purposes, but generally this would be
-        // instantiated with PostgresEntityDatabaseAdapter and PostgresEntityQueryContextProvider
-        {
-          adapterProvider: new InMemoryDatabaseAdapterProvider(),
-          queryContextProvider: new InMemoryQueryContextProvider(),
-        },
-      ],
-    ]),
-    new Map([
-      [
-        'redis',
-        // An in-memory cache is used for demonstration purposes, but generally this would be
-        // instantiated with a RedisCacheAdapterProvider
-        {
-          cacheAdapterProvider: new InMemoryFullCacheStubCacheAdapterProvider(),
-        },
-      ],
-    ])
+    {
+      // An in-memory DB is used for demonstration purposes, but generally this would be
+      // instantiated with PostgresEntityDatabaseAdapter and PostgresEntityQueryContextProvider
+      [DatabaseAdapterFlavor.POSTGRES]: {
+        adapterProvider: new InMemoryDatabaseAdapterProvider(),
+        queryContextProvider: new InMemoryQueryContextProvider(),
+      },
+    },
+    {
+      // An in-memory cache is used for demonstration purposes, but generally this would be
+      // instantiated with a RedisCacheAdapterProvider
+      [CacheAdapterFlavor.REDIS]: {
+        cacheAdapterProvider: new InMemoryFullCacheStubCacheAdapterProvider(),
+      },
+    }
  );
 };
@@ -23,9 +23,8 @@ import { ExampleViewerContext } from '../viewerContexts';
 */
 export default class AllowIfUserOwnerPrivacyRule<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
-  TEntity extends ReadonlyEntity<TFields, TID, ExampleViewerContext>,
-  TSelectedFields extends keyof TFields = keyof TFields
+  TID,
+  TEntity extends ReadonlyEntity<TFields, TID, ExampleViewerContext>
 > extends PrivacyPolicyRule<TFields, TID, ExampleViewerContext, TEntity> {
  constructor(private readonly entityOwnerField: keyof TFields) {
    super();
@@ -3,6 +3,8 @@ import {
  EntityCompanionDefinition,
  EntityConfiguration,
  UUIDField,
+  DatabaseAdapterFlavor,
+  CacheAdapterFlavor,
  StringField,
 } from '@expo/entity';

@@ -55,8 +57,8 @@ export const noteEntityCompanion = new EntityCompanionDefinition({
        columnName: 'body',
      }),
    },
-    databaseAdapterFlavor: 'postgres',
-    cacheAdapterFlavor: 'redis',
+    databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+    cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
  }),
  privacyPolicyClass: NotePrivacyPolicy,
 });
@@ -3,56 +3,6 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.

-## [0.14.1](https://github.com/expo/entity/compare/v0.14.0...v0.14.1) (2021-03-24)
-
-**Note:** Version bump only for package @expo/entity-full-integration-tests
-
-
-
-
-
-# [0.14.0](https://github.com/expo/entity/compare/v0.13.0...v0.14.0) (2021-03-24)
-
-**Note:** Version bump only for package @expo/entity-full-integration-tests
-
-
-
-
-
-# [0.13.0](https://github.com/expo/entity/compare/v0.12.0...v0.13.0) (2021-02-12)
-
-
-### Features
-
-* add basic field type runtime validators ([#113](https://github.com/expo/entity/issues/113)) ([6c4d4b0](https://github.com/expo/entity/commit/6c4d4b03b5404dd776a12c5eb6f0af77a8c964f8))
-
-
-
-
-
-# [0.12.0](https://github.com/expo/entity/compare/v0.11.0...v0.12.0) (2021-01-22)
-
-
-### Bug Fixes
-
-* move runInTransaction to ViewerContext ([#108](https://github.com/expo/entity/issues/108)) ([b7309e1](https://github.com/expo/entity/commit/b7309e18a2dd780b64cd306d566de1f12bf8df3a))
-* remove cache and database adaptor flavor enums ([#109](https://github.com/expo/entity/issues/109)) ([72a77f8](https://github.com/expo/entity/commit/72a77f8b6893a4b76d3b1cce16659bdf3ce473ee))
-
-
-
-
-
-# [0.11.0](https://github.com/expo/entity/compare/v0.10.0...v0.11.0) (2020-12-24)
-
-
-### Bug Fixes
-
-* remove any cast from EntityLoader ([#100](https://github.com/expo/entity/issues/100)) ([b8e07f9](https://github.com/expo/entity/commit/b8e07f9ddc4077768980c000d61f5ddcc824e2e3))
-
-
-
-
-
 # [0.10.0](https://github.com/expo/entity/compare/v0.9.1...v0.10.0) (2020-11-17)

 **Note:** Version bump only for package @expo/entity-full-integration-tests
@@ -1,7 +1,7 @@
 {
  "name": "@expo/entity-full-integration-tests",
  "private": true,
-  "version": "0.14.1",
+  "version": "0.10.0",
  "description": "Full redis and knex integration tests for the entity framework",
  "scripts": {
    "tsc": "tsc",
@@ -26,8 +26,8 @@
    "@expo/entity-database-adapter-knex": "*"
  },
  "devDependencies": {
-    "@expo/entity": "^0.14.1",
-    "@expo/entity-cache-adapter-redis": "^0.14.1",
-    "@expo/entity-database-adapter-knex": "^0.14.1"
+    "@expo/entity": "^0.10.0",
+    "@expo/entity-cache-adapter-redis": "^0.10.0",
+    "@expo/entity-database-adapter-knex": "^0.10.0"
  }
 }
@@ -5,8 +5,9 @@ import {
  Entity,
  EntityCompanionDefinition,
  EntityConfiguration,
+  DatabaseAdapterFlavor,
+  CacheAdapterFlavor,
  UUIDField,
-  StringField,
 } from '@expo/entity';
 import { RedisCacheAdapterContext } from '@expo/entity-cache-adapter-redis';
 import Redis from 'ioredis';
@@ -27,18 +28,10 @@ class TestEntityPrivacyPolicy extends EntityPrivacyPolicy<
  ViewerContext,
  TestEntity
 > {
-  protected readonly readRules = [
-    new AlwaysAllowPrivacyPolicyRule<TestFields, string, ViewerContext, TestEntity>(),
-  ];
-  protected readonly createRules = [
-    new AlwaysAllowPrivacyPolicyRule<TestFields, string, ViewerContext, TestEntity>(),
-  ];
-  protected readonly updateRules = [
-    new AlwaysAllowPrivacyPolicyRule<TestFields, string, ViewerContext, TestEntity>(),
-  ];
-  protected readonly deleteRules = [
-    new AlwaysAllowPrivacyPolicyRule<TestFields, string, ViewerContext, TestEntity>(),
-  ];
+  protected readonly readRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly createRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly updateRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly deleteRules = [new AlwaysAllowPrivacyPolicyRule()];
 }

 class TestEntity extends Entity<TestFields, string, ViewerContext> {
@@ -61,16 +54,16 @@ const testEntityConfiguration = new EntityConfiguration<TestFields>({
      columnName: 'id',
      cache: true,
    }),
-    other_string: new StringField({
+    other_string: new UUIDField({
      columnName: 'other_string',
      cache: true,
    }),
-    third_string: new StringField({
+    third_string: new UUIDField({
      columnName: 'third_string',
    }),
  },
-  databaseAdapterFlavor: 'postgres',
-  cacheAdapterFlavor: 'redis',
+  databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+  cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
 });

 const testEntityCompanion = new EntityCompanionDefinition({
@@ -158,12 +151,12 @@ describe('Entity cache inconsistency', () => {
      .loadByFieldEqualingAsync('other_string', 'hello');

    let openBarrier1: () => void;
-    const barrier1 = new Promise<void>((resolve) => {
+    const barrier1 = new Promise((resolve) => {
      openBarrier1 = resolve;
    });

    let openBarrier2: () => void;
-    const barrier2 = new Promise<void>((resolve) => {
+    const barrier2 = new Promise((resolve) => {
      openBarrier2 = resolve;
    });

@@ -182,19 +175,16 @@ describe('Entity cache inconsistency', () => {

        openBarrier2!();
      })(),
-      viewerContext.runInTransactionForDatabaseAdaptorFlavorAsync(
-        'postgres',
-        async (queryContext) => {
-          await TestEntity.updater(entity1, queryContext)
-            .setField('third_string', 'updated')
-            .enforceUpdateAsync();
+      TestEntity.runInTransactionAsync(viewerContext, async (queryContext) => {
+        await TestEntity.updater(entity1, queryContext)
+          .setField('third_string', 'updated')
+          .enforceUpdateAsync();

-          openBarrier1();
+        openBarrier1();

-          // wait for to ensure the transaction isn't committed until after load above occurs
-          await barrier2;
-        }
-      ),
+        // wait for to ensure the transaction isn't committed until after load above occurs
+        await barrier2;
+      }),
    ]);

    // ensure cache consistency
@@ -5,6 +5,8 @@ import {
  Entity,
  EntityCompanionDefinition,
  EntityConfiguration,
+  DatabaseAdapterFlavor,
+  CacheAdapterFlavor,
  UUIDField,
  EntityEdgeDeletionBehavior,
 } from '@expo/entity';
@@ -27,18 +29,10 @@ interface OtherFields {
 }

 class PrivacyPolicy extends EntityPrivacyPolicy<any, string, ViewerContext, any> {
-  protected readonly readRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, ViewerContext, any>(),
-  ];
-  protected readonly createRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, ViewerContext, any>(),
-  ];
-  protected readonly updateRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, ViewerContext, any>(),
-  ];
-  protected readonly deleteRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, ViewerContext, any>(),
-  ];
+  protected readonly readRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly createRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly updateRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly deleteRules = [new AlwaysAllowPrivacyPolicyRule()];
 }

 // eslint-disable-next-line @typescript-eslint/explicit-function-return-type
@@ -88,8 +82,8 @@ const makeEntityClasses = async (knex: Knex, edgeDeletionBehavior: EntityEdgeDel
        },
      }),
    },
-    databaseAdapterFlavor: 'postgres',
-    cacheAdapterFlavor: 'redis',
+    databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+    cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
  });

  const categoryEntityCompanion = new EntityCompanionDefinition({
@@ -116,8 +110,8 @@ const makeEntityClasses = async (knex: Knex, edgeDeletionBehavior: EntityEdgeDel
        },
      }),
    },
-    databaseAdapterFlavor: 'postgres',
-    cacheAdapterFlavor: 'redis',
+    databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+    cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
  });

  const otherEntityCompanion = new EntityCompanionDefinition({
@@ -1,5 +1,7 @@
 import {
  AlwaysAllowPrivacyPolicyRule,
+  CacheAdapterFlavor,
+  DatabaseAdapterFlavor,
  Entity,
  EntityCompanionDefinition,
  EntityConfiguration,
@@ -17,18 +19,10 @@ interface ChildFields {
 }

 class TestEntityPrivacyPolicy extends EntityPrivacyPolicy<any, string, ViewerContext, any, any> {
-  protected readonly readRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, ViewerContext, any, any>(),
-  ];
-  protected readonly createRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, ViewerContext, any, any>(),
-  ];
-  protected readonly updateRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, ViewerContext, any, any>(),
-  ];
-  protected readonly deleteRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, ViewerContext, any, any>(),
-  ];
+  protected readonly readRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly createRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly updateRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly deleteRules = [new AlwaysAllowPrivacyPolicyRule()];
 }

 export default class ChildEntity extends Entity<ChildFields, string, ViewerContext> {
@@ -60,8 +54,8 @@ const childEntityConfiguration = new EntityConfiguration<ChildFields>({
      },
    }),
  },
-  databaseAdapterFlavor: 'postgres',
-  cacheAdapterFlavor: 'redis',
+  databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+  cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
 });

 const childEntityCompanion = new EntityCompanionDefinition({
@@ -1,5 +1,7 @@
 import {
  AlwaysAllowPrivacyPolicyRule,
+  CacheAdapterFlavor,
+  DatabaseAdapterFlavor,
  Entity,
  EntityCompanionDefinition,
  EntityConfiguration,
@@ -15,18 +17,10 @@ interface ParentFields {
 }

 class TestEntityPrivacyPolicy extends EntityPrivacyPolicy<any, string, ViewerContext, any, any> {
-  protected readonly readRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, ViewerContext, any, any>(),
-  ];
-  protected readonly createRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, ViewerContext, any, any>(),
-  ];
-  protected readonly updateRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, ViewerContext, any, any>(),
-  ];
-  protected readonly deleteRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, ViewerContext, any, any>(),
-  ];
+  protected readonly readRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly createRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly updateRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly deleteRules = [new AlwaysAllowPrivacyPolicyRule()];
 }

 export default class ParentEntity extends Entity<ParentFields, string, ViewerContext> {
@@ -51,8 +45,8 @@ const parentEntityConfiguration = new EntityConfiguration<ParentFields>({
      cache: true,
    }),
  },
-  databaseAdapterFlavor: 'postgres',
-  cacheAdapterFlavor: 'redis',
+  databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+  cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
 });

 const parentEntityCompanion = new EntityCompanionDefinition({
@@ -2,6 +2,8 @@ import {
  NoOpEntityMetricsAdapter,
  IEntityMetricsAdapter,
  EntityCompanionProvider,
+  CacheAdapterFlavor,
+  DatabaseAdapterFlavor,
 } from '@expo/entity';
 import {
  RedisCacheAdapterContext,
@@ -20,22 +22,16 @@ export const createFullIntegrationTestEntityCompanionProvider = (
 ): EntityCompanionProvider => {
  return new EntityCompanionProvider(
    metricsAdapter,
-    new Map([
-      [
-        'postgres',
-        {
-          adapterProvider: new PostgresEntityDatabaseAdapterProvider(),
-          queryContextProvider: new PostgresEntityQueryContextProvider(knex),
-        },
-      ],
-    ]),
-    new Map([
-      [
-        'redis',
-        {
-          cacheAdapterProvider: new RedisCacheAdapterProvider(redisCacheAdapterContext),
-        },
-      ],
-    ])
+    {
+      [DatabaseAdapterFlavor.POSTGRES]: {
+        adapterProvider: new PostgresEntityDatabaseAdapterProvider(),
+        queryContextProvider: new PostgresEntityQueryContextProvider(knex),
+      },
+    },
+    {
+      [CacheAdapterFlavor.REDIS]: {
+        cacheAdapterProvider: new RedisCacheAdapterProvider(redisCacheAdapterContext),
+      },
+    }
  );
 };
@@ -3,85 +3,6 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.

-## [0.14.1](https://github.com/expo/entity/compare/v0.14.0...v0.14.1) (2021-03-24)
-
-
-### Bug Fixes
-
-* typescript typedef of EntityMutationInfo ([#121](https://github.com/expo/entity/issues/121)) ([8e8f0dc](https://github.com/expo/entity/commit/8e8f0dc8636e343e29a6012d155e4111477a8989))
-
-
-
-
-
-# [0.14.0](https://github.com/expo/entity/compare/v0.13.0...v0.14.0) (2021-03-24)
-
-
-### Bug Fixes
-
-* mutation validator and trigger cyclic import structure ([#118](https://github.com/expo/entity/issues/118)) ([b11dbc0](https://github.com/expo/entity/commit/b11dbc087ba5ad13c748032698dd73279b7960b0))
-
-
-### Features
-
-* add mutation type to validator and trigger execute functions ([#119](https://github.com/expo/entity/issues/119)) ([ef40fa5](https://github.com/expo/entity/commit/ef40fa5e9cdf53e25e78a9423c698e6d1c9737af))
-
-
-
-
-
-# [0.13.0](https://github.com/expo/entity/compare/v0.12.0...v0.13.0) (2021-02-12)
-
-
-### Bug Fixes
-
-* allow undefined value for all fields ([#114](https://github.com/expo/entity/issues/114)) ([022e0e9](https://github.com/expo/entity/commit/022e0e9b88a5e84e0c1bc6c8810c850beb05f0cf))
-
-
-### Features
-
-* add basic field type runtime validators ([#113](https://github.com/expo/entity/issues/113)) ([6c4d4b0](https://github.com/expo/entity/commit/6c4d4b03b5404dd776a12c5eb6f0af77a8c964f8))
-
-
-
-
-
-# [0.12.0](https://github.com/expo/entity/compare/v0.11.0...v0.12.0) (2021-01-22)
-
-
-### Bug Fixes
-
-* move runInTransaction to ViewerContext ([#108](https://github.com/expo/entity/issues/108)) ([b7309e1](https://github.com/expo/entity/commit/b7309e18a2dd780b64cd306d566de1f12bf8df3a))
-* remove cache and database adaptor flavor enums ([#109](https://github.com/expo/entity/issues/109)) ([72a77f8](https://github.com/expo/entity/commit/72a77f8b6893a4b76d3b1cce16659bdf3ce473ee))
-
-
-### Features
-
-* better typing on filterMap for use with predicates ([#106](https://github.com/expo/entity/issues/106)) ([01b3bfe](https://github.com/expo/entity/commit/01b3bfef7c6da55e7d89d8cccb52a0050187aee8))
-
-
-
-
-
-# [0.11.0](https://github.com/expo/entity/compare/v0.10.0...v0.11.0) (2020-12-24)
-
-
-### Bug Fixes
-
-* add type generic default in test utils ([#104](https://github.com/expo/entity/issues/104)) ([fe2917e](https://github.com/expo/entity/commit/fe2917e6b5af808f166aa354d476e168c41e6d21))
-* maps utils invariants for collections containing undefined values ([#103](https://github.com/expo/entity/issues/103)) ([29c1a43](https://github.com/expo/entity/commit/29c1a434ab6cd8d30e9f0e7c742065c8d46d8d8a))
-* remove any cast from EntityLoader ([#100](https://github.com/expo/entity/issues/100)) ([b8e07f9](https://github.com/expo/entity/commit/b8e07f9ddc4077768980c000d61f5ddcc824e2e3))
-
-
-### Features
-
-* better cache adapter error handling ([#102](https://github.com/expo/entity/issues/102)) ([15546aa](https://github.com/expo/entity/commit/15546aad97734ab9ac67f1c012485f096a0e94f1))
-* better database adapter error handling ([#101](https://github.com/expo/entity/issues/101)) ([5208aee](https://github.com/expo/entity/commit/5208aeedb0192f0460ba3d575770a04175f5c3aa))
-
-
-
-
-
 # [0.10.0](https://github.com/expo/entity/compare/v0.9.1...v0.10.0) (2020-11-17)


@@ -1,6 +1,6 @@
 {
  "name": "@expo/entity",
-  "version": "0.14.1",
+  "version": "0.10.0",
  "description": "A privacy-first data model",
  "files": [
    "build",
@@ -11,7 +11,7 @@ import { mapMap } from './utils/collections/maps';
 */
 export default class EnforcingEntityLoader<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
  TPrivacyPolicy extends EntityPrivacyPolicy<
@@ -27,7 +27,7 @@ import ViewerContext from './ViewerContext';
 */
 export default abstract class Entity<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TSelectedFields extends keyof TFields = keyof TFields
 > extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields> {
@@ -39,7 +39,7 @@ export default abstract class Entity<
   */
  static creator<
    TMFields,
-    TMID extends NonNullable<TMFields[TMSelectedFields]>,
+    TMID,
    TMViewerContext extends ViewerContext,
    TMViewerContext2 extends TMViewerContext,
    TMEntity extends Entity<TMFields, TMID, TMViewerContext, TMSelectedFields>,
@@ -80,7 +80,7 @@ export default abstract class Entity<
   */
  static updater<
    TMFields,
-    TMID extends NonNullable<TMFields[TMSelectedFields]>,
+    TMID,
    TMViewerContext extends ViewerContext,
    TMEntity extends Entity<TMFields, TMID, TMViewerContext, TMSelectedFields>,
    TMPrivacyPolicy extends EntityPrivacyPolicy<
@@ -121,7 +121,7 @@ export default abstract class Entity<
   */
  static deleteAsync<
    TMFields,
-    TMID extends NonNullable<TMFields[TMSelectedFields]>,
+    TMID,
    TMViewerContext extends ViewerContext,
    TMEntity extends Entity<TMFields, TMID, TMViewerContext, TMSelectedFields>,
    TMPrivacyPolicy extends EntityPrivacyPolicy<
@@ -163,7 +163,7 @@ export default abstract class Entity<
   */
  static enforceDeleteAsync<
    TMFields,
-    TMID extends NonNullable<TMFields[TMSelectedFields]>,
+    TMID,
    TMViewerContext extends ViewerContext,
    TMEntity extends Entity<TMFields, TMID, TMViewerContext, TMSelectedFields>,
    TMPrivacyPolicy extends EntityPrivacyPolicy<
@@ -216,7 +216,7 @@ export default abstract class Entity<
   */
  static async canViewerUpdateAsync<
    TMFields,
-    TMID extends NonNullable<TMFields[TMSelectedFields]>,
+    TMID,
    TMViewerContext extends ViewerContext,
    TMEntity extends Entity<TMFields, TMID, TMViewerContext, TMSelectedFields>,
    TMPrivacyPolicy extends EntityPrivacyPolicy<
@@ -265,7 +265,7 @@ export default abstract class Entity<
   */
  static async canViewerDeleteAsync<
    TMFields,
-    TMID extends NonNullable<TMFields[TMSelectedFields]>,
+    TMID,
    TMViewerContext extends ViewerContext,
    TMEntity extends Entity<TMFields, TMID, TMViewerContext, TMSelectedFields>,
    TMPrivacyPolicy extends EntityPrivacyPolicy<
@@ -309,7 +309,7 @@ export default abstract class Entity<
 */
 export interface IEntityClass<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
  TPrivacyPolicy extends EntityPrivacyPolicy<
@@ -8,7 +8,7 @@ import ViewerContext from './ViewerContext';

 export default class EntityAssociationLoader<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
  TSelectedFields extends keyof TFields
@@ -25,7 +25,7 @@ export default class EntityAssociationLoader<
  async loadAssociatedEntityAsync<
    TIdentifyingField extends keyof Pick<TFields, TSelectedFields>,
    TAssociatedFields,
-    TAssociatedID extends NonNullable<TAssociatedFields[TAssociatedSelectedFields]>,
+    TAssociatedID,
    TAssociatedEntity extends ReadonlyEntity<
      TAssociatedFields,
      TAssociatedID,
@@ -87,7 +87,7 @@ export default class EntityAssociationLoader<
   */
  async loadManyAssociatedEntitiesAsync<
    TAssociatedFields,
-    TAssociatedID extends NonNullable<TAssociatedFields[TAssociatedSelectedFields]>,
+    TAssociatedID,
    TAssociatedEntity extends ReadonlyEntity<
      TAssociatedFields,
      TAssociatedID,
@@ -140,7 +140,7 @@ export default class EntityAssociationLoader<
   */
  async loadAssociatedEntityByFieldEqualingAsync<
    TAssociatedFields,
-    TAssociatedID extends NonNullable<TAssociatedFields[TAssociatedSelectedFields]>,
+    TAssociatedID,
    TAssociatedEntity extends ReadonlyEntity<
      TAssociatedFields,
      TAssociatedID,
@@ -197,7 +197,7 @@ export default class EntityAssociationLoader<
   */
  async loadManyAssociatedEntitiesByFieldEqualingAsync<
    TAssociatedFields,
-    TAssociatedID extends NonNullable<TAssociatedFields[TAssociatedSelectedFields]>,
+    TAssociatedID,
    TAssociatedEntity extends ReadonlyEntity<
      TAssociatedFields,
      TAssociatedID,
@@ -253,7 +253,7 @@ export default class EntityAssociationLoader<
   */
  async loadAssociatedEntityThroughAsync<
    TFields2,
-    TID2 extends NonNullable<TFields2[TSelectedFields2]>,
+    TID2,
    TEntity2 extends ReadonlyEntity<TFields2, TID2, TViewerContext, TSelectedFields2>,
    TPrivacyPolicy2 extends EntityPrivacyPolicy<
      TFields2,
@@ -287,7 +287,7 @@ export default class EntityAssociationLoader<
   */
  async loadAssociatedEntityThroughAsync<
    TFields2,
-    TID2 extends NonNullable<TFields2[TSelectedFields2]>,
+    TID2,
    TEntity2 extends ReadonlyEntity<TFields2, TID2, TViewerContext, TSelectedFields2>,
    TPrivacyPolicy2 extends EntityPrivacyPolicy<
      TFields2,
@@ -297,7 +297,7 @@ export default class EntityAssociationLoader<
      TSelectedFields2
    >,
    TFields3,
-    TID3 extends NonNullable<TFields3[TSelectedFields3]>,
+    TID3,
    TEntity3 extends ReadonlyEntity<TFields3, TID3, TViewerContext, TSelectedFields3>,
    TPrivacyPolicy3 extends EntityPrivacyPolicy<
      TFields3,
@@ -342,7 +342,7 @@ export default class EntityAssociationLoader<
   */
  async loadAssociatedEntityThroughAsync<
    TFields2,
-    TID2 extends NonNullable<TFields2[TSelectedFields2]>,
+    TID2,
    TEntity2 extends ReadonlyEntity<TFields2, TID2, TViewerContext, TSelectedFields2>,
    TPrivacyPolicy2 extends EntityPrivacyPolicy<
      TFields2,
@@ -352,7 +352,7 @@ export default class EntityAssociationLoader<
      TSelectedFields2
    >,
    TFields3,
-    TID3 extends NonNullable<TFields3[TSelectedFields3]>,
+    TID3,
    TEntity3 extends ReadonlyEntity<TFields3, TID3, TViewerContext, TSelectedFields3>,
    TPrivacyPolicy3 extends EntityPrivacyPolicy<
      TFields3,
@@ -362,7 +362,7 @@ export default class EntityAssociationLoader<
      TSelectedFields3
    >,
    TFields4,
-    TID4 extends NonNullable<TFields4[TSelectedFields4]>,
+    TID4,
    TEntity4 extends ReadonlyEntity<TFields4, TID4, TViewerContext, TSelectedFields4>,
    TPrivacyPolicy4 extends EntityPrivacyPolicy<
      TFields4,
@@ -478,7 +478,7 @@ export interface EntityLoadThroughDirective<
  TViewerContext extends ViewerContext,
  TFields,
  TAssociatedFields,
-  TAssociatedID extends NonNullable<TAssociatedFields[TAssociatedSelectedFields]>,
+  TAssociatedID,
  TAssociatedEntity extends ReadonlyEntity<
    TAssociatedFields,
    TAssociatedID,
@@ -19,7 +19,7 @@ export interface IPrivacyPolicyClass<TPrivacyPolicy> {
 */
 export default class EntityCompanion<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
  TPrivacyPolicy extends EntityPrivacyPolicy<
@@ -84,7 +84,7 @@ export default class EntityCompanion<
      TPrivacyPolicy,
      TSelectedFields
    >(
-      tableDataCoordinator.entityConfiguration,
+      tableDataCoordinator.entityConfiguration.idField as keyof Pick<TFields, TSelectedFields>,
      entityClass,
      privacyPolicy,
      tableDataCoordinator.dataManager
@@ -1,5 +1,3 @@
-import invariant from 'invariant';
-
 import { IEntityClass } from './Entity';
 import EntityCompanion, { IPrivacyPolicyClass } from './EntityCompanion';
 import EntityConfiguration from './EntityConfiguration';
@@ -18,14 +16,25 @@ import { computeIfAbsent } from './utils/collections/maps';
 /**
 * Backing database and transaction type for an entity. The definitions and implementations
 * are provided by injection in the root EntityCompanionProvider to allow for mocking and sharing.
+ *
+ * Note: this enum will likely be modified soon to be more flexible.
 */
-export type DatabaseAdapterFlavor = string;
+export enum DatabaseAdapterFlavor {
+  /**
+   * Knex postgres adapter, using postgres table and postgres transactions.
+   */
+  POSTGRES = 'postgres',
+}

 /**
 * Cache system for an entity. The definitions and implementations are provided by injection
 * in the root EntityCompanionProvider to allow for mocking and sharing.
+ *
+ * Note: this enum will likely be modified soon to be more flexible.
 */
-export type CacheAdapterFlavor = string;
+export enum CacheAdapterFlavor {
+  REDIS = 'redis',
+}

 /**
 * Defines a set interfaces for a entity database adapter flavor. An entity that uses a flavor
@@ -51,7 +60,7 @@ export interface CacheAdapterFlavorDefinition {
 */
 export class EntityCompanionDefinition<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
  TPrivacyPolicy extends EntityPrivacyPolicy<
@@ -73,14 +82,14 @@ export class EntityCompanionDefinition<
  >;
  readonly entityConfiguration: EntityConfiguration<TFields>;
  readonly privacyPolicyClass: IPrivacyPolicyClass<TPrivacyPolicy>;
-  readonly mutationValidators: () => EntityMutationValidator<
+  readonly mutationValidators: EntityMutationValidator<
    TFields,
    TID,
    TViewerContext,
    TEntity,
    TSelectedFields
  >[];
-  readonly mutationTriggers: () => EntityMutationTriggerConfiguration<
+  readonly mutationTriggers: EntityMutationTriggerConfiguration<
    TFields,
    TID,
    TViewerContext,
@@ -93,8 +102,8 @@ export class EntityCompanionDefinition<
    entityClass,
    entityConfiguration,
    privacyPolicyClass,
-    mutationValidators = () => [],
-    mutationTriggers = () => ({}),
+    mutationValidators = [],
+    mutationTriggers = {},
    entitySelectedFields = Array.from(entityConfiguration.schema.keys()) as TSelectedFields[],
  }: {
    entityClass: IEntityClass<
@@ -107,14 +116,14 @@ export class EntityCompanionDefinition<
    >;
    entityConfiguration: EntityConfiguration<TFields>;
    privacyPolicyClass: IPrivacyPolicyClass<TPrivacyPolicy>;
-    mutationValidators?: () => EntityMutationValidator<
+    mutationValidators?: EntityMutationValidator<
      TFields,
      TID,
      TViewerContext,
      TEntity,
      TSelectedFields
    >[];
-    mutationTriggers?: () => EntityMutationTriggerConfiguration<
+    mutationTriggers?: EntityMutationTriggerConfiguration<
      TFields,
      TID,
      TViewerContext,
@@ -159,11 +168,8 @@ export default class EntityCompanionProvider {
   */
  constructor(
    private metricsAdapter: IEntityMetricsAdapter,
-    private databaseAdapterFlavors: ReadonlyMap<
-      DatabaseAdapterFlavor,
-      DatabaseAdapterFlavorDefinition
-    >,
-    private cacheAdapterFlavors: ReadonlyMap<CacheAdapterFlavor, CacheAdapterFlavorDefinition>
+    private databaseAdapterFlavors: Record<DatabaseAdapterFlavor, DatabaseAdapterFlavorDefinition>,
+    private cacheAdapterFlavors: Record<CacheAdapterFlavor, CacheAdapterFlavorDefinition>
  ) {}

  /**
@@ -175,7 +181,7 @@ export default class EntityCompanionProvider {
   */
  getCompanionForEntity<
    TFields,
-    TID extends NonNullable<TFields[TSelectedFields]>,
+    TID,
    TViewerContext extends ViewerContext,
    TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
    TPrivacyPolicy extends EntityPrivacyPolicy<
@@ -213,46 +219,24 @@ export default class EntityCompanionProvider {
        entityCompanionDefinition.entityClass,
        tableDataCoordinator,
        entityCompanionDefinition.privacyPolicyClass,
-        entityCompanionDefinition.mutationValidators(),
-        entityCompanionDefinition.mutationTriggers(),
+        entityCompanionDefinition.mutationValidators,
+        entityCompanionDefinition.mutationTriggers,
        this.metricsAdapter
      );
    });
  }

-  getQueryContextProviderForDatabaseAdaptorFlavor(
-    databaseAdapterFlavor: DatabaseAdapterFlavor
-  ): EntityQueryContextProvider {
-    const entityDatabaseAdapterFlavor = this.databaseAdapterFlavors.get(databaseAdapterFlavor);
-    invariant(
-      entityDatabaseAdapterFlavor,
-      `No database adaptor configuration found for flavor: ${databaseAdapterFlavor}`
-    );
-
-    return entityDatabaseAdapterFlavor.queryContextProvider;
-  }
-
  private getTableDataCoordinatorForEntity<TFields>(
    entityConfiguration: EntityConfiguration<TFields>,
    entityClassName: string
  ): EntityTableDataCoordinator<TFields> {
    return computeIfAbsent(this.tableDataCoordinatorMap, entityConfiguration.tableName, () => {
-      const entityDatabaseAdapterFlavor = this.databaseAdapterFlavors.get(
+      const entityDatabaseAdapterFlavor = this.databaseAdapterFlavors[
        entityConfiguration.databaseAdapterFlavor
-      );
-      invariant(
-        entityDatabaseAdapterFlavor,
-        `No database adaptor configuration found for flavor: ${entityConfiguration.databaseAdapterFlavor}`
-      );
-
-      const entityCacheAdapterFlavor = this.cacheAdapterFlavors.get(
+      ];
+      const entityCacheAdapterFlavor = this.cacheAdapterFlavors[
        entityConfiguration.cacheAdapterFlavor
-      );
-      invariant(
-        entityCacheAdapterFlavor,
-        `No cache adaptor configuration found for flavor: ${entityConfiguration.cacheAdapterFlavor}`
-      );
-
+      ];
      return new EntityTableDataCoordinator(
        entityConfiguration,
        entityDatabaseAdapterFlavor.adapterProvider,
@@ -14,7 +14,7 @@ export default class EntityConfiguration<TFields> {
  readonly cacheKeyVersion: number;

  readonly getInboundEdges: () => IEntityClass<any, any, any, any, any, any>[];
-  readonly schema: ReadonlyMap<keyof TFields, EntityFieldDefinition<any>>;
+  readonly schema: ReadonlyMap<keyof TFields, EntityFieldDefinition>;
  readonly entityToDBFieldsKeyMapping: ReadonlyMap<keyof TFields, string>;
  readonly dbToEntityFieldsKeyMapping: ReadonlyMap<string, keyof TFields>;

@@ -32,7 +32,7 @@ export default class EntityConfiguration<TFields> {
  }: {
    idField: keyof TFields;
    tableName: string;
-    schema: Record<keyof TFields, EntityFieldDefinition<any>>;
+    schema: Record<keyof TFields, EntityFieldDefinition>;
    getInboundEdges?: () => IEntityClass<any, any, any, any, any, any>[];
    cacheKeyVersion?: number;
    databaseAdapterFlavor: DatabaseAdapterFlavor;
@@ -59,7 +59,7 @@ export default class EntityConfiguration<TFields> {
  }

  private static computeCacheableKeys<TFields>(
-    schema: ReadonlyMap<keyof TFields, EntityFieldDefinition<any>>
+    schema: ReadonlyMap<keyof TFields, EntityFieldDefinition>
  ): ReadonlySet<keyof TFields> {
    return reduceMap(
      schema,
@@ -74,7 +74,7 @@ export default class EntityConfiguration<TFields> {
  }

  private static computeEntityToDBFieldsKeyMapping<TFields>(
-    schema: ReadonlyMap<keyof TFields, EntityFieldDefinition<any>>
+    schema: ReadonlyMap<keyof TFields, EntityFieldDefinition>
  ): ReadonlyMap<keyof TFields, string> {
    return mapMap(schema, (v) => v.columnName);
  }
@@ -9,22 +9,19 @@ import {

 interface SingleValueFieldEqualityCondition<TFields, N extends keyof TFields = keyof TFields> {
  fieldName: N;
-  fieldValue: NonNullable<TFields[N]>;
+  fieldValue: TFields[N];
 }

 interface MultiValueFieldEqualityCondition<TFields, N extends keyof TFields = keyof TFields> {
  fieldName: N;
-  fieldValues: readonly NonNullable<TFields[N]>[];
+  fieldValues: TFields[N][];
 }

 export type FieldEqualityCondition<TFields, N extends keyof TFields = keyof TFields> =
  | SingleValueFieldEqualityCondition<TFields, N>
  | MultiValueFieldEqualityCondition<TFields, N>;

-export function isSingleValueFieldEqualityCondition<
-  TFields,
-  N extends keyof TFields = keyof TFields
->(
+function isSingleValueFieldEqualityCondition<TFields, N extends keyof TFields = keyof TFields>(
  condition: FieldEqualityCondition<TFields, N>
 ): condition is SingleValueFieldEqualityCondition<TFields, N> {
  return (condition as SingleValueFieldEqualityCondition<TFields, N>).fieldValue !== undefined;
@@ -37,7 +34,7 @@ export interface TableFieldSingleValueEqualityCondition {

 export interface TableFieldMultiValueEqualityCondition {
  tableField: string;
-  tableValues: readonly any[];
+  tableValues: any[];
 }

 export enum OrderByOrdering {
@@ -0,0 +1,61 @@
+import ES6Error from 'es6-error';
+
+import { IEntityClass } from './Entity';
+import EntityPrivacyPolicy, { EntityAuthorizationAction } from './EntityPrivacyPolicy';
+import ReadonlyEntity from './ReadonlyEntity';
+import ViewerContext from './ViewerContext';
+
+export abstract class EntityError extends ES6Error {}
+
+export class EntityNotFoundError<
+  TFields,
+  TID,
+  TViewerContext extends ViewerContext,
+  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
+  TPrivacyPolicy extends EntityPrivacyPolicy<
+    TFields,
+    TID,
+    TViewerContext,
+    TEntity,
+    TSelectedFields
+  >,
+  N extends keyof TFields,
+  TSelectedFields extends keyof TFields = keyof TFields
+> extends EntityError {
+  constructor(
+    entityClass: IEntityClass<
+      TFields,
+      TID,
+      TViewerContext,
+      TEntity,
+      TPrivacyPolicy,
+      TSelectedFields
+    >,
+    fieldName: N,
+    fieldValue: TFields[N]
+  ) {
+    super(`Entity not found: ${entityClass.name} (${fieldName} = ${fieldValue})`);
+  }
+}
+
+export class EntityNotAuthorizedError<
+  TFields,
+  TID,
+  TViewerContext extends ViewerContext,
+  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
+  TSelectedFields extends keyof TFields = keyof TFields
+> extends EntityError {
+  public readonly entityClassName: string;
+
+  constructor(
+    entity: TEntity,
+    viewerContext: TViewerContext,
+    action: EntityAuthorizationAction,
+    ruleIndex: number
+  ) {
+    super(
+      `Entity not authorized: ${entity} (viewer = ${viewerContext}, action = ${EntityAuthorizationAction[action]}, ruleIndex = ${ruleIndex})`
+    );
+    this.entityClassName = entity.constructor.name;
+  }
+}
@@ -1,5 +1,3 @@
-import { validate as validateUUID } from 'uuid';
-
 import { IEntityClass } from './Entity';
 import EntityPrivacyPolicy from './EntityPrivacyPolicy';
 import ReadonlyEntity from './ReadonlyEntity';
@@ -33,7 +31,7 @@ export enum EntityEdgeDeletionBehavior {
 export interface EntityAssociationDefinition<
  TViewerContext extends ViewerContext,
  TAssociatedFields,
-  TAssociatedID extends NonNullable<TAssociatedFields[TAssociatedSelectedFields]>,
+  TAssociatedID,
  TAssociatedEntity extends ReadonlyEntity<
    TAssociatedFields,
    TAssociatedID,
@@ -85,7 +83,7 @@ export interface EntityAssociationDefinition<
  edgeDeletionBehavior?: EntityEdgeDeletionBehavior;
 }

-export abstract class EntityFieldDefinition<T> {
+export abstract class EntityFieldDefinition {
  readonly columnName: string;
  readonly cache: boolean;
  readonly association?: EntityAssociationDefinition<any, any, any, any, any, any>;
@@ -109,69 +107,15 @@ export abstract class EntityFieldDefinition<T> {
    this.cache = cache;
    this.association = association;
  }
-
-  /**
-   * Validates input value for a field of this type. Null and undefined are considered valid by default. This is used for things like:
-   * - EntityLoader.loadByFieldValue - to ensure the value being loaded by is a valid value
-   * - EntityMutator.setField - to ensure the value being set is a valid value
-   */
-  public validateInputValue(value: T | null | undefined): boolean {
-    if (value === null || value === undefined) {
-      return true;
-    }
-
-    return this.validateInputValueInternal(value);
-  }
-  protected abstract validateInputValueInternal(value: T): boolean;
 }

-export class StringField extends EntityFieldDefinition<string> {
-  protected validateInputValueInternal(value: string): boolean {
-    return typeof value === 'string';
-  }
-}
-export class UUIDField extends StringField {
-  protected validateInputValueInternal(value: string): boolean {
-    return validateUUID(value);
-  }
-}
-export class DateField extends EntityFieldDefinition<Date> {
-  protected validateInputValueInternal(value: Date): boolean {
-    return value instanceof Date;
-  }
-}
-export class BooleanField extends EntityFieldDefinition<boolean> {
-  protected validateInputValueInternal(value: boolean): boolean {
-    return typeof value === 'boolean';
-  }
-}
-export class NumberField extends EntityFieldDefinition<number> {
-  protected validateInputValueInternal(value: number): boolean {
-    return typeof value === 'number';
-  }
-}
-export class StringArrayField extends EntityFieldDefinition<string[]> {
-  protected validateInputValueInternal(value: string[]): boolean {
-    return Array.isArray(value) && value.every((subValue) => typeof subValue === 'string');
-  }
-}
-export class JSONObjectField extends EntityFieldDefinition<object> {
-  protected validateInputValueInternal(value: object): boolean {
-    return typeof value === 'object' && !Array.isArray(value);
-  }
-}
-export class EnumField extends EntityFieldDefinition<string | number> {
-  protected validateInputValueInternal(value: string | number): boolean {
-    return typeof value === 'number' || typeof value === 'string';
-  }
-}
-export class JSONArrayField extends EntityFieldDefinition<any[]> {
-  protected validateInputValueInternal(value: any[]): boolean {
-    return Array.isArray(value);
-  }
-}
-export class MaybeJSONArrayField extends EntityFieldDefinition<any | any[]> {
-  protected validateInputValueInternal(_value: any): boolean {
-    return true;
-  }
-}
+export class StringField extends EntityFieldDefinition {}
+export class UUIDField extends StringField {}
+export class DateField extends EntityFieldDefinition {}
+export class BooleanField extends EntityFieldDefinition {}
+export class NumberField extends EntityFieldDefinition {}
+export class StringArrayField extends EntityFieldDefinition {}
+export class JSONObjectField extends EntityFieldDefinition {}
+export class EnumField extends EntityFieldDefinition {}
+export class JSONArrayField extends EntityFieldDefinition {}
+export class MaybeJSONArrayField extends EntityFieldDefinition {}
@@ -3,18 +3,12 @@ import invariant from 'invariant';

 import EnforcingEntityLoader from './EnforcingEntityLoader';
 import { IEntityClass } from './Entity';
-import EntityConfiguration from './EntityConfiguration';
-import {
-  FieldEqualityCondition,
-  QuerySelectionModifiers,
-  isSingleValueFieldEqualityCondition,
-} from './EntityDatabaseAdapter';
+import { FieldEqualityCondition, QuerySelectionModifiers } from './EntityDatabaseAdapter';
+import { EntityNotFoundError } from './EntityErrors';
 import EntityPrivacyPolicy from './EntityPrivacyPolicy';
 import { EntityQueryContext } from './EntityQueryContext';
 import ReadonlyEntity from './ReadonlyEntity';
 import ViewerContext from './ViewerContext';
-import EntityInvalidFieldValueError from './errors/EntityInvalidFieldValueError';
-import EntityNotFoundError from './errors/EntityNotFoundError';
 import EntityDataManager from './internal/EntityDataManager';
 import { mapMap, mapMapAsync } from './utils/collections/maps';

@@ -24,7 +18,7 @@ import { mapMap, mapMapAsync } from './utils/collections/maps';
 */
 export default class EntityLoader<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
  TPrivacyPolicy extends EntityPrivacyPolicy<
@@ -39,7 +33,7 @@ export default class EntityLoader<
  constructor(
    private readonly viewerContext: TViewerContext,
    private readonly queryContext: EntityQueryContext,
-    private readonly entityConfiguration: EntityConfiguration<TFields>,
+    private readonly idField: keyof Pick<TFields, TSelectedFields>,
    private readonly entityClass: IEntityClass<
      TFields,
      TID,
@@ -79,8 +73,6 @@ export default class EntityLoader<
    fieldName: N,
    fieldValues: readonly NonNullable<TFields[N]>[]
  ): Promise<ReadonlyMap<NonNullable<TFields[N]>, readonly Result<TEntity>[]>> {
-    this.validateFieldValues(fieldName, fieldValues);
-
    const fieldValuesToFieldObjects = await this.dataManager.loadManyByFieldEqualingAsync(
      this.queryContext,
      fieldName,
@@ -158,9 +150,7 @@ export default class EntityLoader<
    const entityResults = await this.loadManyByIDsAsync([id]);
    const entityResult = entityResults.get(id);
    if (entityResult === undefined) {
-      return result(
-        new EntityNotFoundError(this.entityClass, this.entityConfiguration.idField, id)
-      );
+      return result(new EntityNotFoundError(this.entityClass, this.idField, id as any));
    }
    return entityResult;
  }
@@ -171,10 +161,7 @@ export default class EntityLoader<
   * @returns entity result for matching ID, or null if no entity exists for ID.
   */
  async loadByIDNullableAsync(id: TID): Promise<Result<TEntity> | null> {
-    return await this.loadByFieldEqualingAsync(
-      this.entityConfiguration.idField as TSelectedFields,
-      id
-    );
+    return await this.loadByFieldEqualingAsync(this.idField, id as any);
  }

  /**
@@ -184,15 +171,14 @@ export default class EntityLoader<
   * @returns map from ID to corresponding entity result, where result error can be UnauthorizedError or EntityNotFoundError.
   */
  async loadManyByIDsAsync(ids: readonly TID[]): Promise<ReadonlyMap<TID, Result<TEntity>>> {
-    const entityResults = (await this.loadManyByFieldEqualingManyAsync(
-      this.entityConfiguration.idField as TSelectedFields,
-      ids
-    )) as ReadonlyMap<TID, readonly Result<TEntity>[]>;
+    const entityResults = ((await this.loadManyByFieldEqualingManyAsync(
+      this.idField,
+      ids as any
+    )) as any) as ReadonlyMap<TID, readonly Result<TEntity>[]>;
    return mapMap(entityResults, (entityResultsForId, id) => {
      const entityResult = entityResultsForId[0];
      return (
-        entityResult ??
-        result(new EntityNotFoundError(this.entityClass, this.entityConfiguration.idField, id))
+        entityResult ?? result(new EntityNotFoundError(this.entityClass, this.idField, id as any))
      );
    });
  }
@@ -215,13 +201,6 @@ export default class EntityLoader<
    fieldEqualityOperands: FieldEqualityCondition<TFields, N>[],
    querySelectionModifiers: QuerySelectionModifiers<TFields> = {}
  ): Promise<readonly Result<TEntity>[]> {
-    for (const fieldEqualityOperand of fieldEqualityOperands) {
-      const fieldValues = isSingleValueFieldEqualityCondition(fieldEqualityOperand)
-        ? [fieldEqualityOperand.fieldValue]
-        : fieldEqualityOperand.fieldValues;
-      this.validateFieldValues(fieldEqualityOperand.fieldName, fieldValues);
-    }
-
    const fieldObjects = await this.dataManager.loadManyByFieldEqualityConjunctionAsync(
      this.queryContext,
      fieldEqualityOperands,
@@ -305,6 +284,13 @@ export default class EntityLoader<
    await this.dataManager.invalidateObjectFieldsAsync(objectFields);
  }

+  async invalidateFieldsTransactionalAsync(objectFields: Readonly<TFields>): Promise<void> {
+    await this.dataManager.invalidateObjectFieldsTransactionalAsync(
+      this.queryContext,
+      objectFields
+    );
+  }
+
  /**
   * Invalidate all caches for an entity. One potential use case would be to keep the entity
   * framework in sync with changes made to data outside of the framework.
@@ -328,18 +314,4 @@ export default class EntityLoader<
      }
    });
  }
-
-  private validateFieldValues<N extends keyof Pick<TFields, TSelectedFields>>(
-    fieldName: N,
-    fieldValues: readonly NonNullable<TFields[N]>[]
-  ): void {
-    const fieldDefinition = this.entityConfiguration.schema.get(fieldName);
-    invariant(fieldDefinition, `must have field definition for field = ${fieldName}`);
-    for (const fieldValue of fieldValues) {
-      const isInputValid = fieldDefinition.validateInputValue(fieldValue);
-      if (!isInputValid) {
-        throw new EntityInvalidFieldValueError(this.entityClass, fieldName, fieldValue);
-      }
-    }
-  }
 }
@@ -1,5 +1,4 @@
 import { IEntityClass } from './Entity';
-import EntityConfiguration from './EntityConfiguration';
 import EntityLoader from './EntityLoader';
 import EntityPrivacyPolicy from './EntityPrivacyPolicy';
 import { EntityQueryContext } from './EntityQueryContext';
@@ -12,7 +11,7 @@ import EntityDataManager from './internal/EntityDataManager';
 */
 export default class EntityLoaderFactory<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
  TPrivacyPolicy extends EntityPrivacyPolicy<
@@ -25,7 +24,7 @@ export default class EntityLoaderFactory<
  TSelectedFields extends keyof TFields
 > {
  constructor(
-    private readonly entityConfiguration: EntityConfiguration<TFields>,
+    private readonly idField: keyof Pick<TFields, TSelectedFields>,
    private readonly entityClass: IEntityClass<
      TFields,
      TID,
@@ -50,7 +49,7 @@ export default class EntityLoaderFactory<
    return new EntityLoader(
      viewerContext,
      queryContext,
-      this.entityConfiguration,
+      this.idField,
      this.entityClass,
      this.privacyPolicyClass,
      this.dataManager
@@ -1,4 +1,3 @@
-import { EntityMutationInfo } from './EntityMutator';
 import { EntityQueryContext } from './EntityQueryContext';
 import ReadonlyEntity from './ReadonlyEntity';
 import ViewerContext from './ViewerContext';
@@ -8,7 +7,7 @@ import ViewerContext from './ViewerContext';
 */
 export default interface EntityMutationTriggerConfiguration<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
  TSelectedFields extends keyof TFields = keyof TFields
@@ -71,16 +70,15 @@ export default interface EntityMutationTriggerConfiguration<
 */
 export abstract class EntityMutationTrigger<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
  TSelectedFields extends keyof TFields = keyof TFields
 > {
-  abstract executeAsync(
+  abstract async executeAsync(
    viewerContext: TViewerContext,
    queryContext: EntityQueryContext,
-    entity: TEntity,
-    mutationInfo: EntityMutationInfo<TFields, TID, TViewerContext, TEntity, TSelectedFields>
+    entity: TEntity
  ): Promise<void>;
 }

@@ -90,14 +88,10 @@ export abstract class EntityMutationTrigger<
 */
 export abstract class EntityNonTransactionalMutationTrigger<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
  TSelectedFields extends keyof TFields = keyof TFields
 > {
-  abstract executeAsync(
-    viewerContext: TViewerContext,
-    entity: TEntity,
-    mutationInfo: EntityMutationInfo<TFields, TID, TViewerContext, TEntity, TSelectedFields>
-  ): Promise<void>;
+  abstract async executeAsync(viewerContext: TViewerContext, entity: TEntity): Promise<void>;
 }
@@ -1,23 +1,21 @@
-import { EntityMutationInfo } from './EntityMutator';
 import { EntityQueryContext } from './EntityQueryContext';
 import ReadonlyEntity from './ReadonlyEntity';
 import ViewerContext from './ViewerContext';

-/**
+/*
 * A validator is a way to specify entity mutation validation that runs within the
 * same transaction as the mutation itself before creating or updating an entity.
 */
 export default abstract class EntityMutationValidator<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
  TSelectedFields extends keyof TFields = keyof TFields
 > {
-  abstract executeAsync(
+  abstract async executeAsync(
    viewerContext: TViewerContext,
    queryContext: EntityQueryContext,
-    entity: TEntity,
-    mutationInfo: EntityMutationInfo<TFields, TID, TViewerContext, TEntity, TSelectedFields>
+    entity: TEntity
  ): Promise<void>;
 }
@@ -1,5 +1,4 @@
 import { Result, asyncResult, result, enforceAsyncResult } from '@expo/results';
-import invariant from 'invariant';

 import Entity, { IEntityClass } from './Entity';
 import { EntityCompanionDefinition } from './EntityCompanionProvider';
@@ -16,38 +15,13 @@ import EntityPrivacyPolicy from './EntityPrivacyPolicy';
 import { EntityQueryContext, EntityTransactionalQueryContext } from './EntityQueryContext';
 import ReadonlyEntity from './ReadonlyEntity';
 import ViewerContext from './ViewerContext';
-import EntityInvalidFieldValueError from './errors/EntityInvalidFieldValueError';
 import { timeAndLogMutationEventAsync } from './metrics/EntityMetricsUtils';
 import IEntityMetricsAdapter, { EntityMetricsMutationType } from './metrics/IEntityMetricsAdapter';
 import { mapMapAsync } from './utils/collections/maps';

-export enum EntityMutationType {
-  CREATE,
-  UPDATE,
-  DELETE,
-}
-
-export type EntityMutationInfo<
-  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
-  TViewerContext extends ViewerContext,
-  TEntity extends Entity<TFields, TID, TViewerContext, TSelectedFields>,
-  TSelectedFields extends keyof TFields = keyof TFields
-> =
-  | {
-      type: EntityMutationType.CREATE;
-    }
-  | {
-      type: EntityMutationType.UPDATE;
-      previousValue: TEntity;
-    }
-  | {
-      type: EntityMutationType.DELETE;
-    };
-
 abstract class BaseMutator<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends Entity<TFields, TID, TViewerContext, TSelectedFields>,
  TPrivacyPolicy extends EntityPrivacyPolicy<
@@ -98,33 +72,20 @@ abstract class BaseMutator<
    protected readonly metricsAdapter: IEntityMetricsAdapter
  ) {}

-  protected validateFields(fields: Partial<TFields>): void {
-    for (const fieldName in fields) {
-      const fieldValue = fields[fieldName];
-      const fieldDefinition = this.entityConfiguration.schema.get(fieldName);
-      invariant(fieldDefinition, `must have field definition for field = ${fieldName}`);
-      const isInputValid = fieldDefinition.validateInputValue(fieldValue);
-      if (!isInputValid) {
-        throw new EntityInvalidFieldValueError(this.entityClass, fieldName, fieldValue);
-      }
-    }
-  }
-
  protected async executeMutationTriggersOrValidatorsAsync(
    triggersOrValidators:
      | EntityMutationTrigger<TFields, TID, TViewerContext, TEntity, TSelectedFields>[]
      | EntityMutationValidator<TFields, TID, TViewerContext, TEntity, TSelectedFields>[]
      | undefined,
    queryContext: EntityQueryContext,
-    entity: TEntity,
-    mutationInfo: EntityMutationInfo<TFields, TID, TViewerContext, TEntity, TSelectedFields>
+    entity: TEntity
  ): Promise<void> {
    if (!triggersOrValidators) {
      return;
    }
    await Promise.all(
      triggersOrValidators.map((triggerOrValidator) =>
-        triggerOrValidator.executeAsync(this.viewerContext, queryContext, entity, mutationInfo)
+        triggerOrValidator.executeAsync(this.viewerContext, queryContext, entity)
      )
    );
  }
@@ -139,15 +100,12 @@ abstract class BaseMutator<
          TSelectedFields
        >[]
      | undefined,
-    entity: TEntity,
-    mutationInfo: EntityMutationInfo<TFields, TID, TViewerContext, TEntity, TSelectedFields>
+    entity: TEntity
  ): Promise<void> {
    if (!triggers) {
      return;
    }
-    await Promise.all(
-      triggers.map((trigger) => trigger.executeAsync(this.viewerContext, entity, mutationInfo))
-    );
+    await Promise.all(triggers.map((trigger) => trigger.executeAsync(this.viewerContext, entity)));
  }
 }

@@ -156,7 +114,7 @@ abstract class BaseMutator<
 */
 export class CreateMutator<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends Entity<TFields, TID, TViewerContext, TSelectedFields>,
  TPrivacyPolicy extends EntityPrivacyPolicy<
@@ -209,8 +167,6 @@ export class CreateMutator<
  private async createInternalAsync(
    queryContext: EntityTransactionalQueryContext
  ): Promise<Result<TEntity>> {
-    this.validateFields(this.fieldsForEntity);
-
    const temporaryEntityForPrivacyCheck = new this.entityClass(this.viewerContext, ({
      [this.entityConfiguration.idField]: '00000000-0000-0000-0000-000000000000', // zero UUID
      ...this.fieldsForEntity,
@@ -230,20 +186,17 @@ export class CreateMutator<
    await this.executeMutationTriggersOrValidatorsAsync(
      this.mutationValidators,
      queryContext,
-      temporaryEntityForPrivacyCheck,
-      { type: EntityMutationType.CREATE }
+      temporaryEntityForPrivacyCheck
    );
    await this.executeMutationTriggersOrValidatorsAsync(
      this.mutationTriggers.beforeAll,
      queryContext,
-      temporaryEntityForPrivacyCheck,
-      { type: EntityMutationType.CREATE }
+      temporaryEntityForPrivacyCheck
    );
    await this.executeMutationTriggersOrValidatorsAsync(
      this.mutationTriggers.beforeCreate,
      queryContext,
-      temporaryEntityForPrivacyCheck,
-      { type: EntityMutationType.CREATE }
+      temporaryEntityForPrivacyCheck
    );

    const insertResult = await this.databaseAdapter.insertAsync(queryContext, this.fieldsForEntity);
@@ -252,6 +205,7 @@ export class CreateMutator<
    queryContext.appendPostCommitCallback(
      entityLoader.invalidateFieldsAsync.bind(entityLoader, insertResult)
    );
+    await entityLoader.invalidateFieldsTransactionalAsync(insertResult);

    const unauthorizedEntityAfterInsert = new this.entityClass(this.viewerContext, insertResult);
    const newEntity = await entityLoader
@@ -261,22 +215,19 @@ export class CreateMutator<
    await this.executeMutationTriggersOrValidatorsAsync(
      this.mutationTriggers.afterCreate,
      queryContext,
-      newEntity,
-      { type: EntityMutationType.CREATE }
+      newEntity
    );
    await this.executeMutationTriggersOrValidatorsAsync(
      this.mutationTriggers.afterAll,
      queryContext,
-      newEntity,
-      { type: EntityMutationType.CREATE }
+      newEntity
    );

    queryContext.appendPostCommitCallback(
      this.executeNonTransactionalMutationTriggersOrValidatorsAsync.bind(
        this,
        this.mutationTriggers.afterCommit,
-        newEntity,
-        { type: EntityMutationType.CREATE }
+        newEntity
      )
    );

@@ -289,7 +240,7 @@ export class CreateMutator<
 */
 export class UpdateMutator<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends Entity<TFields, TID, TViewerContext, TSelectedFields>,
  TPrivacyPolicy extends EntityPrivacyPolicy<
@@ -301,7 +252,7 @@ export class UpdateMutator<
  >,
  TSelectedFields extends keyof TFields
 > extends BaseMutator<TFields, TID, TViewerContext, TEntity, TPrivacyPolicy, TSelectedFields> {
-  private readonly originalEntity: TEntity;
+  private readonly originalFieldsForEntity: Readonly<TFields>;
  private readonly fieldsForEntity: TFields;
  private readonly updatedFields: Partial<TFields> = {};

@@ -342,7 +293,7 @@ export class UpdateMutator<
    >,
    databaseAdapter: EntityDatabaseAdapter<TFields>,
    metricsAdapter: IEntityMetricsAdapter,
-    originalEntity: TEntity
+    fieldsForEntity: Readonly<TFields>
  ) {
    super(
      viewerContext,
@@ -356,8 +307,8 @@ export class UpdateMutator<
      databaseAdapter,
      metricsAdapter
    );
-    this.originalEntity = originalEntity;
-    this.fieldsForEntity = { ...originalEntity.getAllDatabaseFields() };
+    this.originalFieldsForEntity = { ...fieldsForEntity };
+    this.fieldsForEntity = { ...fieldsForEntity };
  }

  /**
@@ -401,8 +352,6 @@ export class UpdateMutator<
  private async updateInternalAsync(
    queryContext: EntityTransactionalQueryContext
  ): Promise<Result<TEntity>> {
-    this.validateFields(this.updatedFields);
-
    const entityAboutToBeUpdated = new this.entityClass(this.viewerContext, this.fieldsForEntity);
    const authorizeUpdateResult = await asyncResult(
      this.privacyPolicy.authorizeUpdateAsync(
@@ -418,20 +367,17 @@ export class UpdateMutator<
    await this.executeMutationTriggersOrValidatorsAsync(
      this.mutationValidators,
      queryContext,
-      entityAboutToBeUpdated,
-      { type: EntityMutationType.UPDATE, previousValue: this.originalEntity }
+      entityAboutToBeUpdated
    );
    await this.executeMutationTriggersOrValidatorsAsync(
      this.mutationTriggers.beforeAll,
      queryContext,
-      entityAboutToBeUpdated,
-      { type: EntityMutationType.UPDATE, previousValue: this.originalEntity }
+      entityAboutToBeUpdated
    );
    await this.executeMutationTriggersOrValidatorsAsync(
      this.mutationTriggers.beforeUpdate,
      queryContext,
-      entityAboutToBeUpdated,
-      { type: EntityMutationType.UPDATE, previousValue: this.originalEntity }
+      entityAboutToBeUpdated
    );

    const updateResult = await this.databaseAdapter.updateAsync(
@@ -444,15 +390,17 @@ export class UpdateMutator<
    const entityLoader = this.entityLoaderFactory.forLoad(this.viewerContext, queryContext);

    queryContext.appendPostCommitCallback(
-      entityLoader.invalidateFieldsAsync.bind(
-        entityLoader,
-        this.originalEntity.getAllDatabaseFields()
-      )
+      entityLoader.invalidateFieldsAsync.bind(entityLoader, this.originalFieldsForEntity)
    );
    queryContext.appendPostCommitCallback(
      entityLoader.invalidateFieldsAsync.bind(entityLoader, this.fieldsForEntity)
    );

+    await Promise.all([
+      entityLoader.invalidateFieldsTransactionalAsync(this.originalFieldsForEntity),
+      entityLoader.invalidateFieldsTransactionalAsync(this.fieldsForEntity),
+    ]);
+
    const unauthorizedEntityAfterUpdate = new this.entityClass(this.viewerContext, updateResult);
    const updatedEntity = await entityLoader
      .enforcing()
@@ -461,22 +409,19 @@ export class UpdateMutator<
    await this.executeMutationTriggersOrValidatorsAsync(
      this.mutationTriggers.afterUpdate,
      queryContext,
-      updatedEntity,
-      { type: EntityMutationType.UPDATE, previousValue: this.originalEntity }
+      updatedEntity
    );
    await this.executeMutationTriggersOrValidatorsAsync(
      this.mutationTriggers.afterAll,
      queryContext,
-      updatedEntity,
-      { type: EntityMutationType.UPDATE, previousValue: this.originalEntity }
+      updatedEntity
    );

    queryContext.appendPostCommitCallback(
      this.executeNonTransactionalMutationTriggersOrValidatorsAsync.bind(
        this,
        this.mutationTriggers.afterCommit,
-        updatedEntity,
-        { type: EntityMutationType.UPDATE, previousValue: this.originalEntity }
+        updatedEntity
      )
    );

@@ -489,7 +434,7 @@ export class UpdateMutator<
 */
 export class DeleteMutator<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends Entity<TFields, TID, TViewerContext, TSelectedFields>,
  TPrivacyPolicy extends EntityPrivacyPolicy<
@@ -598,7 +543,7 @@ export class DeleteMutator<
      return authorizeDeleteResult;
    }

-    await this.processEntityDeletionForInboundEdgesAsync(
+    await DeleteMutator.processEntityDeletionForInboundEdgesAsync(
      this.entity,
      queryContext,
      processedEntityIdentifiersFromTransitiveDeletions
@@ -607,14 +552,12 @@ export class DeleteMutator<
    await this.executeMutationTriggersOrValidatorsAsync(
      this.mutationTriggers.beforeAll,
      queryContext,
-      this.entity,
-      { type: EntityMutationType.DELETE }
+      this.entity
    );
    await this.executeMutationTriggersOrValidatorsAsync(
      this.mutationTriggers.beforeDelete,
      queryContext,
-      this.entity,
-      { type: EntityMutationType.DELETE }
+      this.entity
    );

    if (!skipDatabaseDeletion) {
@@ -629,26 +572,24 @@ export class DeleteMutator<
    queryContext.appendPostCommitCallback(
      entityLoader.invalidateFieldsAsync.bind(entityLoader, this.entity.getAllDatabaseFields())
    );
+    await entityLoader.invalidateFieldsTransactionalAsync(this.entity.getAllDatabaseFields());

    await this.executeMutationTriggersOrValidatorsAsync(
      this.mutationTriggers.afterDelete,
      queryContext,
-      this.entity,
-      { type: EntityMutationType.DELETE }
+      this.entity
    );
    await this.executeMutationTriggersOrValidatorsAsync(
      this.mutationTriggers.afterAll,
      queryContext,
-      this.entity,
-      { type: EntityMutationType.DELETE }
+      this.entity
    );

    queryContext.appendPostCommitCallback(
      this.executeNonTransactionalMutationTriggersOrValidatorsAsync.bind(
        this,
        this.mutationTriggers.afterCommit,
-        this.entity,
-        { type: EntityMutationType.DELETE }
+        this.entity
      )
    );

@@ -669,8 +610,14 @@ export class DeleteMutator<
   *
   * @param entity - entity to find all references to
   */
-  private async processEntityDeletionForInboundEdgesAsync(
-    entity: TEntity,
+  private static async processEntityDeletionForInboundEdgesAsync<
+    TMFields,
+    TMID,
+    TMViewerContext extends ViewerContext,
+    TMEntity extends Entity<TMFields, TMID, TMViewerContext, TMSelectedFields>,
+    TMSelectedFields extends keyof TMFields
+  >(
+    entity: TMEntity,
    queryContext: EntityTransactionalQueryContext,
    processedEntityIdentifiers: Set<string>
  ): Promise<void> {
@@ -681,12 +628,12 @@ export class DeleteMutator<
    processedEntityIdentifiers.add(entity.getUniqueIdentifier());

    const companionDefinition = (entity.constructor as any).getCompanionDefinition() as EntityCompanionDefinition<
-      TFields,
-      TID,
-      TViewerContext,
-      TEntity,
-      TPrivacyPolicy,
-      TSelectedFields
+      TMFields,
+      TMID,
+      TMViewerContext,
+      TMEntity,
+      EntityPrivacyPolicy<TMFields, TMID, TMViewerContext, TMEntity, TMSelectedFields>,
+      TMSelectedFields
    >;
    const entityConfiguration = companionDefinition.entityConfiguration;
    const inboundEdges = entityConfiguration.getInboundEdges();
@@ -15,7 +15,7 @@ import IEntityMetricsAdapter from './metrics/IEntityMetricsAdapter';
 */
 export default class EntityMutatorFactory<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends Entity<TFields, TID, TViewerContext, TSelectedFields>,
  TPrivacyPolicy extends EntityPrivacyPolicy<
@@ -109,7 +109,7 @@ export default class EntityMutatorFactory<
      this.entityLoaderFactory,
      this.databaseAdapter,
      this.metricsAdapter,
-      existingEntity
+      existingEntity.getAllDatabaseFields()
    );
  }

@@ -1,7 +1,7 @@
+import { EntityNotAuthorizedError } from './EntityErrors';
 import { EntityQueryContext } from './EntityQueryContext';
 import ReadonlyEntity from './ReadonlyEntity';
 import ViewerContext from './ViewerContext';
-import EntityNotAuthorizedError from './errors/EntityNotAuthorizedError';
 import PrivacyPolicyRule, { RuleEvaluationResult } from './rules/PrivacyPolicyRule';

 export enum EntityPrivacyPolicyEvaluationMode {
@@ -12,7 +12,7 @@ export enum EntityPrivacyPolicyEvaluationMode {

 export type EntityPrivacyPolicyEvaluator<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
  TSelectedFields extends keyof TFields = keyof TFields
@@ -63,7 +63,7 @@ export enum EntityAuthorizationAction {
 */
 export default abstract class EntityPrivacyPolicy<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
  TSelectedFields extends keyof TFields = keyof TFields
@@ -265,13 +265,7 @@ export default abstract class EntityPrivacyPolicy<
      const ruleEvaluationResult = await rule.evaluateAsync(viewerContext, queryContext, entity);
      switch (ruleEvaluationResult) {
        case RuleEvaluationResult.DENY:
-          throw new EntityNotAuthorizedError<
-            TFields,
-            TID,
-            TViewerContext,
-            TEntity,
-            TSelectedFields
-          >(entity, viewerContext, action, i);
+          throw new EntityNotAuthorizedError(entity, viewerContext, action, i);
        case RuleEvaluationResult.SKIP:
          continue;
        case RuleEvaluationResult.ALLOW:
@@ -281,11 +275,6 @@ export default abstract class EntityPrivacyPolicy<
      }
    }

-    throw new EntityNotAuthorizedError<TFields, TID, TViewerContext, TEntity, TSelectedFields>(
-      entity,
-      viewerContext,
-      action,
-      -1
-    );
+    throw new EntityNotAuthorizedError(entity, viewerContext, action, -1);
  }
 }
@@ -1,3 +1,5 @@
+import { v4 as uuidv4 } from 'uuid';
+
 import EntityQueryContextProvider from './EntityQueryContextProvider';

 export type PostCommitCallback = (...args: any) => Promise<any>;
@@ -12,13 +14,13 @@ export type PostCommitCallback = (...args: any) => Promise<any>;
 export abstract class EntityQueryContext {
  constructor(private readonly queryInterface: any) {}

-  abstract isInTransaction(): boolean;
+  abstract isInTransaction(): this is EntityTransactionalQueryContext;

  getQueryInterface(): any {
    return this.queryInterface;
  }

-  abstract runInTransactionIfNotInTransactionAsync<T>(
+  abstract async runInTransactionIfNotInTransactionAsync<T>(
    transactionScope: (queryContext: EntityTransactionalQueryContext) => Promise<T>
  ): Promise<T>;
 }
@@ -31,7 +33,7 @@ export class EntityNonTransactionalQueryContext extends EntityQueryContext {
    super(queryInterface);
  }

-  isInTransaction(): boolean {
+  isInTransaction(): this is EntityTransactionalQueryContext {
    return false;
  }

@@ -43,6 +45,8 @@ export class EntityNonTransactionalQueryContext extends EntityQueryContext {
 }

 export class EntityTransactionalQueryContext extends EntityQueryContext {
+  public readonly transactionID = uuidv4();
+
  private readonly postCommitCallbacks: PostCommitCallback[] = [];

  public appendPostCommitCallback(callback: PostCommitCallback): void {
@@ -55,7 +59,7 @@ export class EntityTransactionalQueryContext extends EntityQueryContext {
    await Promise.all(callbacks.map((callback) => callback()));
  }

-  isInTransaction(): boolean {
+  isInTransaction(): this is EntityTransactionalQueryContext {
    return true;
  }

@@ -5,7 +5,7 @@ import EntityAssociationLoader from './EntityAssociationLoader';
 import { EntityCompanionDefinition } from './EntityCompanionProvider';
 import EntityLoader from './EntityLoader';
 import EntityPrivacyPolicy from './EntityPrivacyPolicy';
-import { EntityQueryContext } from './EntityQueryContext';
+import { EntityQueryContext, EntityTransactionalQueryContext } from './EntityQueryContext';
 import ViewerContext from './ViewerContext';
 import { pick } from './entityUtils';

@@ -19,7 +19,7 @@ import { pick } from './entityUtils';
 */
 export default abstract class ReadonlyEntity<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TSelectedFields extends keyof TFields = keyof TFields
 > {
@@ -118,6 +118,80 @@ export default abstract class ReadonlyEntity<
    return { ...this.databaseFields };
  }

+  /**
+   * Get the regular (non-transactional) query context for this entity.
+   * @param viewerContext - viewer context of calling user
+   */
+  static getQueryContext<
+    TMFields,
+    TMID,
+    TMViewerContext extends ViewerContext,
+    TMViewerContext2 extends TMViewerContext,
+    TMEntity extends ReadonlyEntity<TMFields, TMID, TMViewerContext, TMSelectedFields>,
+    TMPrivacyPolicy extends EntityPrivacyPolicy<
+      TMFields,
+      TMID,
+      TMViewerContext,
+      TMEntity,
+      TMSelectedFields
+    >,
+    TMSelectedFields extends keyof TMFields = keyof TMFields
+  >(
+    this: IEntityClass<
+      TMFields,
+      TMID,
+      TMViewerContext,
+      TMEntity,
+      TMPrivacyPolicy,
+      TMSelectedFields
+    >,
+    viewerContext: TMViewerContext2
+  ): EntityQueryContext {
+    return viewerContext
+      .getViewerScopedEntityCompanionForClass(this)
+      .getQueryContextProvider()
+      .getQueryContext();
+  }
+
+  /**
+   * Start a transaction and execute the provided transaction-scoped closure within the transaction.
+   * @param viewerContext - viewer context of calling user
+   * @param transactionScope - async callback to execute within the transaction
+   */
+  static async runInTransactionAsync<
+    TResult,
+    TMFields,
+    TMID,
+    TMViewerContext extends ViewerContext,
+    TMViewerContext2 extends TMViewerContext,
+    TMEntity extends ReadonlyEntity<TMFields, TMID, TMViewerContext, TMSelectedFields>,
+    TMPrivacyPolicy extends EntityPrivacyPolicy<
+      TMFields,
+      TMID,
+      TMViewerContext,
+      TMEntity,
+      TMSelectedFields
+    >,
+    TMSelectedFields extends keyof TMFields = keyof TMFields
+  >(
+    this: IEntityClass<
+      TMFields,
+      TMID,
+      TMViewerContext,
+      TMEntity,
+      TMPrivacyPolicy,
+      TMSelectedFields
+    >,
+    viewerContext: TMViewerContext2,
+    transactionScope: (queryContext: EntityTransactionalQueryContext) => Promise<TResult>
+  ): Promise<TResult> {
+    return await viewerContext
+      .getViewerScopedEntityCompanionForClass(this)
+      .getQueryContextProvider()
+      .getQueryContext()
+      .runInTransactionIfNotInTransactionAsync(transactionScope);
+  }
+
  /**
   * Vend loader for loading an entity in a given query context.
   * @param viewerContext - viewer context of loading user
@@ -125,7 +199,7 @@ export default abstract class ReadonlyEntity<
   */
  static loader<
    TMFields,
-    TMID extends NonNullable<TMFields[TMSelectedFields]>,
+    TMID,
    TMViewerContext extends ViewerContext,
    TMViewerContext2 extends TMViewerContext,
    TMEntity extends ReadonlyEntity<TMFields, TMID, TMViewerContext, TMSelectedFields>,
@@ -1,7 +1,6 @@
 import { IEntityClass } from './Entity';
-import EntityCompanionProvider, { DatabaseAdapterFlavor } from './EntityCompanionProvider';
+import EntityCompanionProvider from './EntityCompanionProvider';
 import EntityPrivacyPolicy from './EntityPrivacyPolicy';
-import { EntityQueryContext, EntityTransactionalQueryContext } from './EntityQueryContext';
 import ReadonlyEntity from './ReadonlyEntity';
 import ViewerScopedEntityCompanion from './ViewerScopedEntityCompanion';
 import ViewerScopedEntityCompanionProvider from './ViewerScopedEntityCompanionProvider';
@@ -28,7 +27,7 @@ export default class ViewerContext {

  getViewerScopedEntityCompanionForClass<
    TMFields,
-    TMID extends NonNullable<TMFields[TMSelectedFields]>,
+    TMID,
    TMViewerContext extends ViewerContext,
    TMEntity extends ReadonlyEntity<TMFields, TMID, TMViewerContext, TMSelectedFields>,
    TMPrivacyPolicy extends EntityPrivacyPolicy<
@@ -61,32 +60,4 @@ export default class ViewerContext {
      entityClass.getCompanionDefinition()
    );
  }
-
-  /**
-   * Get the regular (non-transactional) query context for a database adaptor flavor.
-   * @param databaseAdaptorFlavor - database adaptor flavor
-   */
-  getQueryContextForDatabaseAdaptorFlavor(
-    databaseAdaptorFlavor: DatabaseAdapterFlavor
-  ): EntityQueryContext {
-    return this.entityCompanionProvider
-      .getQueryContextProviderForDatabaseAdaptorFlavor(databaseAdaptorFlavor)
-      .getQueryContext();
-  }
-
-  /**
-   * Run a transaction of specified database adaptor flavor and execute the provided
-   * transaction-scoped closure within the transaction.
-   * @param databaseAdaptorFlavor - databaseAdaptorFlavor
-   * @param transactionScope - async callback to execute within the transaction
-   */
-  async runInTransactionForDatabaseAdaptorFlavorAsync<TResult>(
-    databaseAdaptorFlavor: DatabaseAdapterFlavor,
-    transactionScope: (queryContext: EntityTransactionalQueryContext) => Promise<TResult>
-  ): Promise<TResult> {
-    return await this.entityCompanionProvider
-      .getQueryContextProviderForDatabaseAdaptorFlavor(databaseAdaptorFlavor)
-      .getQueryContext()
-      .runInTransactionIfNotInTransactionAsync(transactionScope);
-  }
 }
@@ -12,7 +12,7 @@ import ViewerScopedEntityMutatorFactory from './ViewerScopedEntityMutatorFactory
 */
 export default class ViewerScopedEntityCompanion<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
  TPrivacyPolicy extends EntityPrivacyPolicy<
@@ -23,7 +23,7 @@ export default class ViewerScopedEntityCompanionProvider {
   */
  getViewerScopedCompanionForEntity<
    TFields,
-    TID extends NonNullable<TFields[TSelectedFields]>,
+    TID,
    TViewerContext extends ViewerContext,
    TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
    TPrivacyPolicy extends EntityPrivacyPolicy<
@@ -10,7 +10,7 @@ import ViewerContext from './ViewerContext';
 */
 export default class ViewerScopedEntityLoaderFactory<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
  TPrivacyPolicy extends EntityPrivacyPolicy<
@@ -10,7 +10,7 @@ import ViewerContext from './ViewerContext';
 */
 export default class ViewerScopedEntityMutatorFactory<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
  TPrivacyPolicy extends EntityPrivacyPolicy<
@@ -287,8 +287,8 @@ describe(EnforcingEntityLoader, () => {
      'enforcing',
      'invalidateFieldsAsync',
      'invalidateEntityAsync',
+      'invalidateFieldsTransactionalAsync',
      'tryConstructEntities',
-      'validateFieldValues',
    ];
    expect(loaderProperties).toEqual(expect.arrayContaining(knownLoaderOnlyDifferences));

@@ -1,5 +1,9 @@
 import Entity from '../Entity';
-import { EntityCompanionDefinition } from '../EntityCompanionProvider';
+import {
+  DatabaseAdapterFlavor,
+  CacheAdapterFlavor,
+  EntityCompanionDefinition,
+} from '../EntityCompanionProvider';
 import EntityConfiguration from '../EntityConfiguration';
 import { UUIDField } from '../EntityFields';
 import { CreateMutator, UpdateMutator } from '../EntityMutator';
@@ -92,8 +96,8 @@ const testEntityConfiguration = new EntityConfiguration<TestEntityFields>({
      columnName: 'custom_id',
    }),
  },
-  databaseAdapterFlavor: 'postgres',
-  cacheAdapterFlavor: 'redis',
+  databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+  cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
 });

 class SimpleTestDenyUpdateEntityPrivacyPolicy extends EntityPrivacyPolicy<
@@ -102,38 +106,10 @@ class SimpleTestDenyUpdateEntityPrivacyPolicy extends EntityPrivacyPolicy<
  ViewerContext,
  SimpleTestDenyUpdateEntity
 > {
-  protected readonly readRules = [
-    new AlwaysAllowPrivacyPolicyRule<
-      TestEntityFields,
-      string,
-      ViewerContext,
-      SimpleTestDenyUpdateEntity
-    >(),
-  ];
-  protected readonly createRules = [
-    new AlwaysAllowPrivacyPolicyRule<
-      TestEntityFields,
-      string,
-      ViewerContext,
-      SimpleTestDenyUpdateEntity
-    >(),
-  ];
-  protected readonly updateRules = [
-    new AlwaysDenyPrivacyPolicyRule<
-      TestEntityFields,
-      string,
-      ViewerContext,
-      SimpleTestDenyUpdateEntity
-    >(),
-  ];
-  protected readonly deleteRules = [
-    new AlwaysAllowPrivacyPolicyRule<
-      TestEntityFields,
-      string,
-      ViewerContext,
-      SimpleTestDenyUpdateEntity
-    >(),
-  ];
+  protected readonly readRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly createRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly updateRules = [new AlwaysDenyPrivacyPolicyRule()];
+  protected readonly deleteRules = [new AlwaysAllowPrivacyPolicyRule()];
 }

 class SimpleTestDenyDeleteEntityPrivacyPolicy extends EntityPrivacyPolicy<
@@ -142,38 +118,10 @@ class SimpleTestDenyDeleteEntityPrivacyPolicy extends EntityPrivacyPolicy<
  ViewerContext,
  SimpleTestDenyDeleteEntity
 > {
-  protected readonly readRules = [
-    new AlwaysAllowPrivacyPolicyRule<
-      TestEntityFields,
-      string,
-      ViewerContext,
-      SimpleTestDenyDeleteEntity
-    >(),
-  ];
-  protected readonly createRules = [
-    new AlwaysAllowPrivacyPolicyRule<
-      TestEntityFields,
-      string,
-      ViewerContext,
-      SimpleTestDenyDeleteEntity
-    >(),
-  ];
-  protected readonly updateRules = [
-    new AlwaysAllowPrivacyPolicyRule<
-      TestEntityFields,
-      string,
-      ViewerContext,
-      SimpleTestDenyDeleteEntity
-    >(),
-  ];
-  protected readonly deleteRules = [
-    new AlwaysDenyPrivacyPolicyRule<
-      TestEntityFields,
-      string,
-      ViewerContext,
-      SimpleTestDenyDeleteEntity
-    >(),
-  ];
+  protected readonly readRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly createRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly updateRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly deleteRules = [new AlwaysDenyPrivacyPolicyRule()];
 }

 class SimpleTestDenyUpdateEntity extends Entity<TestEntityFields, string, ViewerContext> {
@@ -1,5 +1,4 @@
 import { enforceAsyncResult } from '@expo/results';
-import { v4 as uuidv4 } from 'uuid';

 import EntityAssociationLoader from '../EntityAssociationLoader';
 import { enforceResultsAsync } from '../entityUtils';
@@ -75,7 +74,7 @@ describe(EntityAssociationLoader, () => {
      const companionProvider = createUnitTestEntityCompanionProvider();
      const viewerContext = new TestViewerContext(companionProvider);
      const testEntity = await enforceAsyncResult(
-        TestEntity.creator(viewerContext).setField('stringField', uuidv4()).createAsync()
+        TestEntity.creator(viewerContext).setField('stringField', 'blah').createAsync()
      );
      const loadedOtherResult = await testEntity
        .associationLoader()
@@ -197,7 +196,7 @@ describe(EntityAssociationLoader, () => {
      const viewerContext = new TestViewerContext(companionProvider);

      const testEntity = await enforceAsyncResult(
-        TestEntity2.creator(viewerContext).setField('foreignKey', uuidv4()).createAsync()
+        TestEntity2.creator(viewerContext).setField('foreignKey', 'fake').createAsync()
      );

      const loadResult = await testEntity.associationLoader().loadAssociatedEntityThroughAsync([
@@ -213,12 +212,11 @@ describe(EntityAssociationLoader, () => {
      const companionProvider = createUnitTestEntityCompanionProvider();
      const viewerContext = new TestViewerContext(companionProvider);

-      const fieldValue = uuidv4();
      const testEntity2 = await enforceAsyncResult(
-        TestEntity.creator(viewerContext).setField('stringField', fieldValue).createAsync()
+        TestEntity.creator(viewerContext).setField('stringField', 'blah').createAsync()
      );
      const testEntity = await enforceAsyncResult(
-        TestEntity2.creator(viewerContext).setField('foreignKey', fieldValue).createAsync()
+        TestEntity2.creator(viewerContext).setField('foreignKey', 'blah').createAsync()
      );

      const loaded2Result = await testEntity.associationLoader().loadAssociatedEntityThroughAsync([
@@ -236,7 +234,7 @@ describe(EntityAssociationLoader, () => {
      const viewerContext = new TestViewerContext(companionProvider);

      const testEntity = await enforceAsyncResult(
-        TestEntity2.creator(viewerContext).setField('foreignKey', uuidv4()).createAsync()
+        TestEntity2.creator(viewerContext).setField('foreignKey', 'blah').createAsync()
      );

      const loaded2Result = await testEntity.associationLoader().loadAssociatedEntityThroughAsync([
@@ -1,15 +1,18 @@
 import { enforceAsyncResult } from '@expo/results';
-import { v4 as uuidv4 } from 'uuid';

 import Entity from '../Entity';
-import EntityCompanionProvider, { EntityCompanionDefinition } from '../EntityCompanionProvider';
+import EntityCompanionProvider, {
+  DatabaseAdapterFlavor,
+  CacheAdapterFlavor,
+  EntityCompanionDefinition,
+} from '../EntityCompanionProvider';
 import EntityConfiguration from '../EntityConfiguration';
+import { EntityNotAuthorizedError } from '../EntityErrors';
 import { UUIDField } from '../EntityFields';
 import EntityPrivacyPolicy from '../EntityPrivacyPolicy';
 import { EntityQueryContext } from '../EntityQueryContext';
 import ViewerContext from '../ViewerContext';
 import { enforceResultsAsync } from '../entityUtils';
-import EntityNotAuthorizedError from '../errors/EntityNotAuthorizedError';
 import AlwaysAllowPrivacyPolicyRule from '../rules/AlwaysAllowPrivacyPolicyRule';
 import AlwaysDenyPrivacyPolicyRule from '../rules/AlwaysDenyPrivacyPolicyRule';
 import PrivacyPolicyRule, { RuleEvaluationResult } from '../rules/PrivacyPolicyRule';
@@ -97,8 +100,8 @@ const blahCompanion = new EntityCompanionDefinition({
        columnName: 'owner_id',
      }),
    },
-    databaseAdapterFlavor: 'postgres',
-    cacheAdapterFlavor: 'redis',
+    databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+    cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
  }),
  privacyPolicyClass: BlahEntityPrivacyPolicy,
 });
@@ -107,8 +110,8 @@ it('runs through a common workflow', async () => {
  // will be one entity companion provider for each request, so
  // share amongst all VCs created in that request
  const entityCompanionProvider = createUnitTestEntityCompanionProvider();
-  const vc1 = new TestUserViewerContext(entityCompanionProvider, uuidv4());
-  const vc2 = new TestUserViewerContext(entityCompanionProvider, uuidv4());
+  const vc1 = new TestUserViewerContext(entityCompanionProvider, '1');
+  const vc2 = new TestUserViewerContext(entityCompanionProvider, '2');

  const blahOwner1 = await enforceAsyncResult(
    BlahEntity.creator(vc1).setField('ownerID', vc1.getUserID()!).createAsync()
@@ -8,12 +8,11 @@ import IEntityMetricsAdapter from '../metrics/IEntityMetricsAdapter';
 import TestEntity, {
  TestEntityPrivacyPolicy,
  testEntityConfiguration,
-  TestFields,
 } from '../testfixtures/TestEntity';

 describe(EntityCompanion, () => {
  it('correctly instantiates mutator and loader factories', () => {
-    const tableDataCoordinatorMock = mock<EntityTableDataCoordinator<TestFields>>();
+    const tableDataCoordinatorMock = mock(EntityTableDataCoordinator);
    when(tableDataCoordinatorMock.entityConfiguration).thenReturn(testEntityConfiguration);

    const companion = new EntityCompanion(
@@ -1,5 +1,9 @@
 import Entity from '../Entity';
-import EntityCompanionProvider, { EntityCompanionDefinition } from '../EntityCompanionProvider';
+import EntityCompanionProvider, {
+  DatabaseAdapterFlavor,
+  CacheAdapterFlavor,
+  EntityCompanionDefinition,
+} from '../EntityCompanionProvider';
 import EntityConfiguration from '../EntityConfiguration';
 import { StringField } from '../EntityFields';
 import EntityPrivacyPolicy from '../EntityPrivacyPolicy';
@@ -18,8 +22,8 @@ const blahConfiguration = new EntityConfiguration<BlahFields>({
      columnName: 'hello',
    }),
  },
-  databaseAdapterFlavor: 'postgres',
-  cacheAdapterFlavor: 'redis',
+  databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+  cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
 });

 class Blah1Entity extends Entity<BlahFields, string, ViewerContext> {
@@ -1,3 +1,4 @@
+import { DatabaseAdapterFlavor, CacheAdapterFlavor } from '../EntityCompanionProvider';
 import EntityConfiguration from '../EntityConfiguration';
 import { UUIDField, StringField } from '../EntityFields';

@@ -27,15 +28,15 @@ describe(EntityConfiguration, () => {
        columnName: 'unique_but_not_cacheable',
      }),
    },
-    databaseAdapterFlavor: 'postgres',
-    cacheAdapterFlavor: 'redis',
+    databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+    cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
  });

  it('returns correct fields', () => {
    expect(blahEntityConfiguration.idField).toEqual('id');
    expect(blahEntityConfiguration.tableName).toEqual('blah_table');
-    expect(blahEntityConfiguration.databaseAdapterFlavor).toEqual('postgres');
-    expect(blahEntityConfiguration.cacheAdapterFlavor).toEqual('redis');
+    expect(blahEntityConfiguration.databaseAdapterFlavor).toEqual(DatabaseAdapterFlavor.POSTGRES);
+    expect(blahEntityConfiguration.cacheAdapterFlavor).toEqual(CacheAdapterFlavor.REDIS);
  });

  it('filters cacheable fields', () => {
@@ -52,8 +53,8 @@ describe(EntityConfiguration, () => {
            columnName: 'id',
          }),
        },
-        databaseAdapterFlavor: 'postgres',
-        cacheAdapterFlavor: 'redis',
+        databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+        cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
      });
      expect(entityConfiguration.cacheKeyVersion).toEqual(0);
    });
@@ -67,8 +68,8 @@ describe(EntityConfiguration, () => {
            columnName: 'id',
          }),
        },
-        databaseAdapterFlavor: 'postgres',
-        cacheAdapterFlavor: 'redis',
+        databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+        cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
        cacheKeyVersion: 100,
      });
      expect(entityConfiguration.cacheKeyVersion).toEqual(100);
@@ -1,5 +1,9 @@
 import Entity from '../Entity';
-import { EntityCompanionDefinition } from '../EntityCompanionProvider';
+import {
+  DatabaseAdapterFlavor,
+  CacheAdapterFlavor,
+  EntityCompanionDefinition,
+} from '../EntityCompanionProvider';
 import EntityConfiguration from '../EntityConfiguration';
 import { UUIDField, EntityEdgeDeletionBehavior } from '../EntityFields';
 import EntityPrivacyPolicy from '../EntityPrivacyPolicy';
@@ -30,18 +34,10 @@ class TestEntityPrivacyPolicy extends EntityPrivacyPolicy<
  any,
  any
 > {
-  protected readonly readRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, TestViewerContext, any, any>(),
-  ];
-  protected readonly createRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, TestViewerContext, any, any>(),
-  ];
-  protected readonly updateRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, TestViewerContext, any, any>(),
-  ];
-  protected readonly deleteRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, TestViewerContext, any, any>(),
-  ];
+  protected readonly readRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly createRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly updateRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly deleteRules = [new AlwaysAllowPrivacyPolicyRule()];
 }

 // eslint-disable-next-line @typescript-eslint/explicit-function-return-type
@@ -92,8 +88,8 @@ const makeEntityClasses = (edgeDeletionBehavior: EntityEdgeDeletionBehavior) =>
        cache: true,
      }),
    },
-    databaseAdapterFlavor: 'postgres',
-    cacheAdapterFlavor: 'redis',
+    databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+    cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
  });

  const childEntityConfiguration = new EntityConfiguration<ChildFields>({
@@ -114,8 +110,8 @@ const makeEntityClasses = (edgeDeletionBehavior: EntityEdgeDeletionBehavior) =>
        },
      }),
    },
-    databaseAdapterFlavor: 'postgres',
-    cacheAdapterFlavor: 'redis',
+    databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+    cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
  });

  const grandChildEntityConfiguration = new EntityConfiguration<GrandChildFields>({
@@ -135,8 +131,8 @@ const makeEntityClasses = (edgeDeletionBehavior: EntityEdgeDeletionBehavior) =>
        },
      }),
    },
-    databaseAdapterFlavor: 'postgres',
-    cacheAdapterFlavor: 'redis',
+    databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+    cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
  });

  const parentEntityCompanion = new EntityCompanionDefinition({
@@ -1,24 +1,6 @@
-import { v1 as uuidv1, v3 as uuidv3, v4 as uuidv4, v5 as uuidv5 } from 'uuid';
+import { EntityFieldDefinition } from '../EntityFields';

-import {
-  EntityFieldDefinition,
-  StringField,
-  UUIDField,
-  DateField,
-  BooleanField,
-  NumberField,
-  StringArrayField,
-  JSONObjectField,
-  EnumField,
-  JSONArrayField,
-  MaybeJSONArrayField,
-} from '../EntityFields';
-
-class TestFieldDefinition extends EntityFieldDefinition<string> {
-  protected validateInputValueInternal(value: string): boolean {
-    return value === 'helloworld';
-  }
-}
+class TestFieldDefinition extends EntityFieldDefinition {}

 describe(EntityFieldDefinition, () => {
  it('returns correct column name and defaults cache to false', () => {
@@ -30,71 +12,4 @@ describe(EntityFieldDefinition, () => {
    expect(fieldDefinition2.columnName).toEqual('wat');
    expect(fieldDefinition2.cache).toEqual(true);
  });
-
-  test('validator returns true when value is null', () => {
-    const fieldDefinition = new TestFieldDefinition({ columnName: 'wat', cache: true });
-    expect(fieldDefinition.validateInputValue(null)).toBe(true);
-  });
-
-  test('validator returns true when value is undefined', () => {
-    const fieldDefinition = new TestFieldDefinition({ columnName: 'wat', cache: true });
-    expect(fieldDefinition.validateInputValue(undefined)).toBe(true);
-  });
-
-  test('validator returns false when value is invalid', () => {
-    const fieldDefinition = new TestFieldDefinition({ columnName: 'wat', cache: true });
-    expect(fieldDefinition.validateInputValue('nothelloworld')).toBe(false);
-  });
-
-  test('validator returns true when value is valid', () => {
-    const fieldDefinition = new TestFieldDefinition({ columnName: 'wat', cache: true });
-    expect(fieldDefinition.validateInputValue('helloworld')).toBe(true);
-  });
 });
-
-const describeFieldTestCase = <T>(
-  fieldDefinition: EntityFieldDefinition<T>,
-  validValues: T[],
-  invalidValues: any[]
-): void => {
-  describe(fieldDefinition.constructor.name, () => {
-    if (validValues.length > 0) {
-      test.each(validValues)(`${fieldDefinition.constructor.name}.valid %p`, (value) => {
-        expect(fieldDefinition.validateInputValue(value)).toBe(true);
-      });
-    }
-
-    if (invalidValues.length > 0) {
-      test.each(invalidValues)(`${fieldDefinition.constructor.name}.invalid %p`, (value) => {
-        expect(fieldDefinition.validateInputValue(value)).toBe(false);
-      });
-    }
-  });
-};
-
-describeFieldTestCase(new StringField({ columnName: 'wat' }), ['hello', ''], [1, true, {}, [[]]]);
-describeFieldTestCase(
-  new UUIDField({ columnName: 'wat' }),
-  [uuidv1(), uuidv3('wat', uuidv3.DNS), uuidv4(), uuidv5('wat', uuidv5.DNS)],
-  [uuidv4().replace('-', ''), '', 'hello']
-);
-describeFieldTestCase(new DateField({ columnName: 'wat' }), [new Date()], [Date.now()]);
-describeFieldTestCase(new BooleanField({ columnName: 'wat' }), [true, false], [0, 1, '']);
-describeFieldTestCase(new NumberField({ columnName: 'wat' }), [1, 0.5, -0.5], ['1']);
-describeFieldTestCase(
-  new StringArrayField({ columnName: 'wat' }),
-  [[['what']] as any, [[]] as any], // jest test cases need extra wrapping array
-  ['hello']
-);
-describeFieldTestCase(new JSONObjectField({ columnName: 'wat' }), [{}], [true, 'hello']);
-describeFieldTestCase(new EnumField({ columnName: 'wat' }), ['hello', 1], [true]);
-describeFieldTestCase(
-  new JSONArrayField({ columnName: 'wat' }),
-  [[[1, 2]] as any, [['hello']] as any], // jest test cases need extra wrapping array
-  [1, 'hello']
-);
-describeFieldTestCase(
-  new MaybeJSONArrayField({ columnName: 'wat' }),
-  [1, 'hello', [['hello']]], // jest test cases need extra wrapping array
-  []
-);
@@ -1,6 +1,5 @@
 import { enforceAsyncResult } from '@expo/results';
 import { mock, instance, verify, spy, deepEqual, anyOfClass, anything, when } from 'ts-mockito';
-import { v4 as uuidv4 } from 'uuid';

 import EntityLoader from '../EntityLoader';
 import ViewerContext from '../ViewerContext';
@@ -23,8 +22,6 @@ describe(EntityLoader, () => {
    const viewerContext = instance(mock(ViewerContext));
    const queryContext = StubQueryContextProvider.getQueryContext();

-    const id1 = uuidv4();
-    const id2 = uuidv4();
    const databaseAdapter = new StubDatabaseAdapter<TestFields>(
      testEntityConfiguration,
      StubDatabaseAdapter.convertFieldObjectsToDataStore(
@@ -34,7 +31,7 @@ describe(EntityLoader, () => {
            testEntityConfiguration.tableName,
            [
              {
-                customIdField: id1,
+                customIdField: 'hello',
                testIndexedField: 'h1',
                numberField: 5,
                stringField: 'huh',
@@ -42,7 +39,7 @@ describe(EntityLoader, () => {
                nullableField: null,
              },
              {
-                customIdField: id2,
+                customIdField: 'world',
                testIndexedField: 'h2',
                numberField: 3,
                stringField: 'huh',
@@ -68,23 +65,23 @@ describe(EntityLoader, () => {
    const entityLoader = new EntityLoader(
      viewerContext,
      queryContext,
-      testEntityConfiguration,
+      testEntityConfiguration.idField,
      TestEntity,
      privacyPolicy,
      dataManager
    );
-    const entity = await enforceAsyncResult(entityLoader.loadByIDAsync(id1));
-    expect(entity.getID()).toEqual(id1);
+    const entity = await enforceAsyncResult(entityLoader.loadByIDAsync('hello'));
+    expect(entity.getID()).toEqual('hello');
    expect(entity.getField('dateField')).toEqual(dateToInsert);

    const entities = await enforceResultsAsync(
      entityLoader.loadManyByFieldEqualingAsync('stringField', 'huh')
    );
-    expect(entities.map((m) => m.getID())).toEqual([id1, id2]);
+    expect(entities.map((m) => m.getID())).toEqual(['hello', 'world']);

    const entityResultNumber3 = await entityLoader.loadByFieldEqualingAsync('numberField', 3);
    expect(entityResultNumber3).not.toBeNull();
-    expect(entityResultNumber3!.enforceValue().getID()).toEqual(id2);
+    expect(entityResultNumber3!.enforceValue().getID()).toEqual('world');

    const entityResultNumber4 = await entityLoader.loadByFieldEqualingAsync('numberField', 4);
    expect(entityResultNumber4).toBeNull();
@@ -93,12 +90,8 @@ describe(EntityLoader, () => {
      'loadByFieldEqualing: Multiple entities of type TestEntity found for stringField=huh'
    );

-    await expect(entityLoader.loadByIDNullableAsync(uuidv4())).resolves.toBeNull();
-    await expect(entityLoader.loadByIDNullableAsync(id1)).resolves.not.toBeNull();
-
-    await expect(entityLoader.loadByIDAsync('not-a-uuid')).rejects.toThrowError(
-      'Entity field not valid: TestEntity (customIdField = not-a-uuid)'
-    );
+    await expect(entityLoader.loadByIDNullableAsync('fake')).resolves.toBeNull();
+    await expect(entityLoader.loadByIDNullableAsync('hello')).resolves.not.toBeNull();
  });

  it('loads entities with loadManyByFieldEqualityConjunction', async () => {
@@ -107,9 +100,6 @@ describe(EntityLoader, () => {
    const viewerContext = instance(mock(ViewerContext));
    const queryContext = StubQueryContextProvider.getQueryContext();

-    const id1 = uuidv4();
-    const id2 = uuidv4();
-    const id3 = uuidv4();
    const databaseAdapter = new StubDatabaseAdapter<TestFields>(
      testEntityConfiguration,
      StubDatabaseAdapter.convertFieldObjectsToDataStore(
@@ -119,7 +109,7 @@ describe(EntityLoader, () => {
            testEntityConfiguration.tableName,
            [
              {
-                customIdField: id1,
+                customIdField: 'hello',
                stringField: 'huh',
                numberField: 4,
                testIndexedField: '4',
@@ -127,7 +117,7 @@ describe(EntityLoader, () => {
                nullableField: null,
              },
              {
-                customIdField: id2,
+                customIdField: 'world',
                stringField: 'huh',
                numberField: 4,
                testIndexedField: '5',
@@ -135,7 +125,7 @@ describe(EntityLoader, () => {
                nullableField: null,
              },
              {
-                customIdField: id3,
+                customIdField: 'blah',
                stringField: 'huh2',
                numberField: 4,
                testIndexedField: '6',
@@ -160,7 +150,7 @@ describe(EntityLoader, () => {
    const entityLoader = new EntityLoader(
      viewerContext,
      queryContext,
-      testEntityConfiguration,
+      testEntityConfiguration.idField,
      TestEntity,
      privacyPolicy,
      dataManager
@@ -181,12 +171,6 @@ describe(EntityLoader, () => {
    verify(
      spiedPrivacyPolicy.authorizeReadAsync(viewerContext, queryContext, anyOfClass(TestEntity))
    ).twice();
-
-    await expect(
-      entityLoader.loadManyByFieldEqualityConjunctionAsync([
-        { fieldName: 'customIdField', fieldValue: 'not-a-uuid' },
-      ])
-    ).rejects.toThrowError('Entity field not valid: TestEntity (customIdField = not-a-uuid)');
  });

  it('authorizes loaded entities', async () => {
@@ -196,7 +180,6 @@ describe(EntityLoader, () => {
    const viewerContext = instance(mock(ViewerContext));
    const queryContext = StubQueryContextProvider.getQueryContext();

-    const id1 = uuidv4();
    const databaseAdapter = new StubDatabaseAdapter<TestFields>(
      testEntityConfiguration,
      StubDatabaseAdapter.convertFieldObjectsToDataStore(
@@ -206,7 +189,7 @@ describe(EntityLoader, () => {
            testEntityConfiguration.tableName,
            [
              {
-                customIdField: id1,
+                customIdField: 'hello',
                stringField: 'huh',
                testIndexedField: '1',
                numberField: 3,
@@ -231,12 +214,12 @@ describe(EntityLoader, () => {
    const entityLoader = new EntityLoader(
      viewerContext,
      queryContext,
-      testEntityConfiguration,
+      testEntityConfiguration.idField,
      TestEntity,
      privacyPolicy,
      dataManager
    );
-    const entity = await enforceAsyncResult(entityLoader.loadByIDAsync(id1));
+    const entity = await enforceAsyncResult(entityLoader.loadByIDAsync('hello'));
    verify(spiedPrivacyPolicy.authorizeReadAsync(viewerContext, queryContext, entity)).once();
  });

@@ -244,22 +227,21 @@ describe(EntityLoader, () => {
    const viewerContext = instance(mock(ViewerContext));
    const queryContext = StubQueryContextProvider.getQueryContext();
    const privacyPolicy = instance(mock(TestEntityPrivacyPolicy));
-    const dataManagerMock = mock<EntityDataManager<TestFields>>();
+    const dataManagerMock = mock(EntityDataManager);
    const dataManagerInstance = instance(dataManagerMock);

-    const id1 = uuidv4();
    const entityLoader = new EntityLoader(
      viewerContext,
      queryContext,
-      testEntityConfiguration,
+      testEntityConfiguration.idField,
      TestEntity,
      privacyPolicy,
      dataManagerInstance
    );
-    await entityLoader.invalidateFieldsAsync({ customIdField: id1 } as any);
+    await entityLoader.invalidateFieldsAsync({ customIdField: 'hello' } as any);

    verify(
-      dataManagerMock.invalidateObjectFieldsAsync(deepEqual({ customIdField: id1 } as any))
+      dataManagerMock.invalidateObjectFieldsAsync(deepEqual({ customIdField: 'hello' }))
    ).once();
  });

@@ -267,21 +249,20 @@ describe(EntityLoader, () => {
    const viewerContext = instance(mock(ViewerContext));
    const queryContext = StubQueryContextProvider.getQueryContext();
    const privacyPolicy = instance(mock(TestEntityPrivacyPolicy));
-    const dataManagerMock = mock<EntityDataManager<TestFields>>();
+    const dataManagerMock = mock(EntityDataManager);
    const dataManagerInstance = instance(dataManagerMock);

-    const id1 = uuidv4();
    const entityLoader = new EntityLoader(
      viewerContext,
      queryContext,
-      testEntityConfiguration,
+      testEntityConfiguration.idField,
      TestEntity,
      privacyPolicy,
      dataManagerInstance
    );
-    await entityLoader.invalidateFieldsAsync({ customIdField: id1 } as any);
+    await entityLoader.invalidateFieldsAsync({ customIdField: 'hello' } as any);
    verify(
-      dataManagerMock.invalidateObjectFieldsAsync(deepEqual({ customIdField: id1 } as any))
+      dataManagerMock.invalidateObjectFieldsAsync(deepEqual({ customIdField: 'hello' }))
    ).once();
  });

@@ -289,25 +270,24 @@ describe(EntityLoader, () => {
    const viewerContext = instance(mock(ViewerContext));
    const queryContext = StubQueryContextProvider.getQueryContext();
    const privacyPolicy = instance(mock(TestEntityPrivacyPolicy));
-    const dataManagerMock = mock<EntityDataManager<TestFields>>();
+    const dataManagerMock = mock(EntityDataManager);
    const dataManagerInstance = instance(dataManagerMock);

-    const id1 = uuidv4();
    const entityMock = mock(TestEntity);
-    when(entityMock.getAllDatabaseFields()).thenReturn({ customIdField: id1 } as any);
+    when(entityMock.getAllDatabaseFields()).thenReturn({ customIdField: 'hello' } as any);
    const entityInstance = instance(entityMock);

    const entityLoader = new EntityLoader(
      viewerContext,
      queryContext,
-      testEntityConfiguration,
+      testEntityConfiguration.idField,
      TestEntity,
      privacyPolicy,
      dataManagerInstance
    );
    await entityLoader.invalidateEntityAsync(entityInstance);
    verify(
-      dataManagerMock.invalidateObjectFieldsAsync(deepEqual({ customIdField: id1 } as any))
+      dataManagerMock.invalidateObjectFieldsAsync(deepEqual({ customIdField: 'hello' }))
    ).once();
  });

@@ -315,12 +295,11 @@ describe(EntityLoader, () => {
    const viewerContext = instance(mock(ViewerContext));
    const queryContext = StubQueryContextProvider.getQueryContext();
    const privacyPolicyMock = mock(TestEntityPrivacyPolicy);
-    const dataManagerMock = mock<EntityDataManager<TestFields>>();
+    const dataManagerMock = mock(EntityDataManager);

-    const id1 = uuidv4();
    when(
      dataManagerMock.loadManyByFieldEqualingAsync(anything(), anything(), anything())
-    ).thenResolve(new Map().set(id1, [{ customIdField: id1 }]));
+    ).thenResolve(new Map().set('hello', [{ customIdField: 'hello' }]));

    const rejectionError = new Error();

@@ -334,13 +313,13 @@ describe(EntityLoader, () => {
    const entityLoader = new EntityLoader(
      viewerContext,
      queryContext,
-      testEntityConfiguration,
+      testEntityConfiguration.idField,
      TestEntity,
      privacyPolicy,
      dataManagerInstance
    );

-    const entityResult = await entityLoader.loadByIDAsync(id1);
+    const entityResult = await entityLoader.loadByIDAsync('hello');
    expect(entityResult.ok).toBe(false);
    expect(entityResult.reason).toEqual(rejectionError);
    expect(entityResult.value).toBe(undefined);
@@ -350,7 +329,7 @@ describe(EntityLoader, () => {
    const viewerContext = instance(mock(ViewerContext));
    const queryContext = StubQueryContextProvider.getQueryContext();
    const privacyPolicy = instance(mock(TestEntityPrivacyPolicy));
-    const dataManagerMock = mock<EntityDataManager<TestFields>>();
+    const dataManagerMock = mock(EntityDataManager);

    const error = new Error();

@@ -363,29 +342,27 @@ describe(EntityLoader, () => {
    const entityLoader = new EntityLoader(
      viewerContext,
      queryContext,
-      testEntityConfiguration,
+      testEntityConfiguration.idField,
      TestEntity,
      privacyPolicy,
      dataManagerInstance
    );

-    const loadByValue = uuidv4();
-
-    await expect(entityLoader.loadByIDAsync(loadByValue)).rejects.toEqual(error);
-    await expect(entityLoader.enforcing().loadByIDAsync(loadByValue)).rejects.toEqual(error);
-    await expect(entityLoader.loadManyByIDsAsync([loadByValue])).rejects.toEqual(error);
-    await expect(entityLoader.loadManyByIDsAsync([loadByValue])).rejects.toEqual(error);
+    await expect(entityLoader.loadByIDAsync('hello')).rejects.toEqual(error);
+    await expect(entityLoader.enforcing().loadByIDAsync('hello')).rejects.toEqual(error);
+    await expect(entityLoader.loadManyByIDsAsync(['hello'])).rejects.toEqual(error);
+    await expect(entityLoader.loadManyByIDsAsync(['hello'])).rejects.toEqual(error);
    await expect(
-      entityLoader.loadManyByFieldEqualingAsync('customIdField', loadByValue)
+      entityLoader.loadManyByFieldEqualingAsync('customIdField', 'hello')
    ).rejects.toEqual(error);
    await expect(
-      entityLoader.enforcing().loadManyByFieldEqualingAsync('customIdField', loadByValue)
+      entityLoader.enforcing().loadManyByFieldEqualingAsync('customIdField', 'hello')
    ).rejects.toEqual(error);
    await expect(
-      entityLoader.loadManyByFieldEqualingManyAsync('customIdField', [loadByValue])
+      entityLoader.loadManyByFieldEqualingManyAsync('customIdField', ['hello'])
    ).rejects.toEqual(error);
    await expect(
-      entityLoader.enforcing().loadManyByFieldEqualingManyAsync('customIdField', [loadByValue])
+      entityLoader.enforcing().loadManyByFieldEqualingManyAsync('customIdField', ['hello'])
    ).rejects.toEqual(error);
  });
 });
@@ -8,9 +8,7 @@ import {
  when,
  anything,
  objectContaining,
-  deepEqual,
 } from 'ts-mockito';
-import { v4 as uuidv4 } from 'uuid';

 import EntityDatabaseAdapter from '../EntityDatabaseAdapter';
 import EntityLoaderFactory from '../EntityLoaderFactory';
@@ -19,7 +17,6 @@ import EntityMutationTriggerConfiguration, {
  EntityNonTransactionalMutationTrigger,
 } from '../EntityMutationTriggerConfiguration';
 import EntityMutationValidator from '../EntityMutationValidator';
-import { EntityMutationInfo, EntityMutationType } from '../EntityMutator';
 import EntityMutatorFactory from '../EntityMutatorFactory';
 import { EntityTransactionalQueryContext, EntityQueryContext } from '../EntityQueryContext';
 import ViewerContext from '../ViewerContext';
@@ -52,14 +49,7 @@ class TestMutationTrigger extends EntityMutationTrigger<
  async executeAsync(
    _viewerContext: ViewerContext,
    _queryContext: EntityQueryContext,
-    _entity: TestEntity,
-    _mutationInfo: EntityMutationInfo<
-      TestFields,
-      string,
-      ViewerContext,
-      TestEntity,
-      keyof TestFields
-    >
+    _entity: TestEntity
  ): Promise<void> {}
 }

@@ -94,16 +84,14 @@ const verifyValidatorCounts = (
    TestEntity,
    keyof TestFields
  >[],
-  expectedCalls: number,
-  mutationInfo: EntityMutationInfo<TestFields, string, ViewerContext, TestEntity, keyof TestFields>
+  expectedCalls: number
 ): void => {
  for (const validator of mutationValidatorSpies) {
    verify(
      validator.executeAsync(
        viewerContext,
        anyOfClass(EntityTransactionalQueryContext),
-        anyOfClass(TestEntity),
-        deepEqual(mutationInfo)
+        anyOfClass(TestEntity)
      )
    ).times(expectedCalls);
  }
@@ -163,8 +151,7 @@ const verifyTriggerCounts = (
      | 'afterDelete'
    >,
    boolean
-  >,
-  mutationInfo: EntityMutationInfo<TestFields, string, ViewerContext, TestEntity, keyof TestFields>
+  >
 ): void => {
  Object.keys(executed).forEach((s) => {
    if ((executed as any)[s]) {
@@ -172,8 +159,7 @@ const verifyTriggerCounts = (
        (mutationTriggerSpies as any)[s]![0].executeAsync(
          viewerContext,
          anyOfClass(EntityTransactionalQueryContext),
-          anyOfClass(TestEntity),
-          deepEqual(mutationInfo)
+          anyOfClass(TestEntity)
        )
      ).once();
    } else {
@@ -181,8 +167,7 @@ const verifyTriggerCounts = (
        (mutationTriggerSpies as any)[s]![0].executeAsync(
          viewerContext,
          anyOfClass(EntityTransactionalQueryContext),
-          anyOfClass(TestEntity),
-          deepEqual(mutationInfo)
+          anyOfClass(TestEntity)
        )
      ).never();
    }
@@ -192,8 +177,7 @@ const verifyTriggerCounts = (
    mutationTriggerSpies.beforeAll![0].executeAsync(
      viewerContext,
      anyOfClass(EntityTransactionalQueryContext),
-      anyOfClass(TestEntity),
-      deepEqual(mutationInfo)
+      anyOfClass(TestEntity)
    )
  ).once();

@@ -201,17 +185,12 @@ const verifyTriggerCounts = (
    mutationTriggerSpies.afterAll![0].executeAsync(
      viewerContext,
      anyOfClass(EntityTransactionalQueryContext),
-      anyOfClass(TestEntity),
-      deepEqual(mutationInfo)
+      anyOfClass(TestEntity)
    )
  ).once();

  verify(
-    mutationTriggerSpies.afterCommit![0].executeAsync(
-      viewerContext,
-      anyOfClass(TestEntity),
-      deepEqual(mutationInfo)
-    )
+    mutationTriggerSpies.afterCommit![0].executeAsync(viewerContext, anyOfClass(TestEntity))
  ).once();
 };

@@ -294,7 +273,7 @@ const createEntityMutatorFactory = (
    TestEntity.name
  );
  const entityLoaderFactory = new EntityLoaderFactory(
-    testEntityConfiguration,
+    testEntityConfiguration.idField,
    TestEntity,
    privacyPolicy,
    dataManager
@@ -324,12 +303,9 @@ describe(EntityMutatorFactory, () => {
    it('creates entities', async () => {
      const viewerContext = mock<ViewerContext>();
      const queryContext = StubQueryContextProvider.getQueryContext();
-
-      const id1 = uuidv4();
-      const id2 = uuidv4();
      const { entityMutatorFactory } = createEntityMutatorFactory([
        {
-          customIdField: id1,
+          customIdField: 'hello',
          stringField: 'huh',
          testIndexedField: '4',
          numberField: 1,
@@ -337,7 +313,7 @@ describe(EntityMutatorFactory, () => {
          nullableField: null,
        },
        {
-          customIdField: id2,
+          customIdField: 'world',
          stringField: 'huh',
          testIndexedField: '5',
          numberField: 1,
@@ -355,12 +331,9 @@ describe(EntityMutatorFactory, () => {
    it('checks privacy', async () => {
      const viewerContext = mock<ViewerContext>();
      const queryContext = StubQueryContextProvider.getQueryContext();
-
-      const id1 = uuidv4();
-      const id2 = uuidv4();
      const { privacyPolicy, entityMutatorFactory } = createEntityMutatorFactory([
        {
-          customIdField: id1,
+          customIdField: 'hello',
          stringField: 'huh',
          testIndexedField: '4',
          numberField: 1,
@@ -368,7 +341,7 @@ describe(EntityMutatorFactory, () => {
          nullableField: null,
        },
        {
-          customIdField: id2,
+          customIdField: 'world',
          stringField: 'huh',
          testIndexedField: '5',
          numberField: 1,
@@ -396,12 +369,9 @@ describe(EntityMutatorFactory, () => {
    it('executes triggers', async () => {
      const viewerContext = mock<ViewerContext>();
      const queryContext = StubQueryContextProvider.getQueryContext();
-
-      const id1 = uuidv4();
-      const id2 = uuidv4();
      const { mutationTriggers, entityMutatorFactory } = createEntityMutatorFactory([
        {
-          customIdField: id1,
+          customIdField: 'hello',
          stringField: 'huh',
          testIndexedField: '4',
          numberField: 1,
@@ -409,7 +379,7 @@ describe(EntityMutatorFactory, () => {
          nullableField: null,
        },
        {
-          customIdField: id2,
+          customIdField: 'world',
          stringField: 'huh',
          testIndexedField: '5',
          numberField: 1,
@@ -425,30 +395,22 @@ describe(EntityMutatorFactory, () => {
        .setField('stringField', 'huh')
        .enforceCreateAsync();

-      verifyTriggerCounts(
-        viewerContext,
-        triggerSpies,
-        {
-          beforeCreate: true,
-          afterCreate: true,
-          beforeUpdate: false,
-          afterUpdate: false,
-          beforeDelete: false,
-          afterDelete: false,
-        },
-        { type: EntityMutationType.CREATE }
-      );
+      verifyTriggerCounts(viewerContext, triggerSpies, {
+        beforeCreate: true,
+        afterCreate: true,
+        beforeUpdate: false,
+        afterUpdate: false,
+        beforeDelete: false,
+        afterDelete: false,
+      });
    });

    it('executes validators', async () => {
      const viewerContext = mock<ViewerContext>();
      const queryContext = StubQueryContextProvider.getQueryContext();
-
-      const id1 = uuidv4();
-      const id2 = uuidv4();
      const { mutationValidators, entityMutatorFactory } = createEntityMutatorFactory([
        {
-          customIdField: id1,
+          customIdField: 'hello',
          stringField: 'huh',
          testIndexedField: '4',
          numberField: 1,
@@ -456,7 +418,7 @@ describe(EntityMutatorFactory, () => {
          nullableField: null,
        },
        {
-          customIdField: id2,
+          customIdField: 'world',
          stringField: 'huh',
          testIndexedField: '5',
          numberField: 1,
@@ -472,7 +434,7 @@ describe(EntityMutatorFactory, () => {
        .setField('stringField', 'huh')
        .enforceCreateAsync();

-      verifyValidatorCounts(viewerContext, validatorSpies, 1, { type: EntityMutationType.CREATE });
+      verifyValidatorCounts(viewerContext, validatorSpies, 1);
    });
  });

@@ -480,12 +442,9 @@ describe(EntityMutatorFactory, () => {
    it('updates entities', async () => {
      const viewerContext = mock<ViewerContext>();
      const queryContext = StubQueryContextProvider.getQueryContext();
-
-      const id1 = uuidv4();
-      const id2 = uuidv4();
      const { entityMutatorFactory, entityLoaderFactory } = createEntityMutatorFactory([
        {
-          customIdField: id1,
+          customIdField: 'hello',
          stringField: 'huh',
          testIndexedField: '3',
          numberField: 3,
@@ -493,7 +452,7 @@ describe(EntityMutatorFactory, () => {
          nullableField: null,
        },
        {
-          customIdField: id2,
+          customIdField: 'world',
          stringField: 'huh',
          testIndexedField: '4',
          numberField: 3,
@@ -503,7 +462,7 @@ describe(EntityMutatorFactory, () => {
      ]);

      const existingEntity = await enforceAsyncResult(
-        entityLoaderFactory.forLoad(viewerContext, queryContext).loadByIDAsync(id2)
+        entityLoaderFactory.forLoad(viewerContext, queryContext).loadByIDAsync('world')
      );

      const updatedEntity = await entityMutatorFactory
@@ -516,7 +475,7 @@ describe(EntityMutatorFactory, () => {
      expect(updatedEntity.getField('stringField')).toEqual('huh2');

      const reloadedEntity = await enforceAsyncResult(
-        entityLoaderFactory.forLoad(viewerContext, queryContext).loadByIDAsync(id2)
+        entityLoaderFactory.forLoad(viewerContext, queryContext).loadByIDAsync('world')
      );
      expect(reloadedEntity.getAllFields()).toMatchObject(updatedEntity.getAllFields());
    });
@@ -524,16 +483,13 @@ describe(EntityMutatorFactory, () => {
    it('checks privacy', async () => {
      const viewerContext = mock<ViewerContext>();
      const queryContext = StubQueryContextProvider.getQueryContext();
-
-      const id1 = uuidv4();
-      const id2 = uuidv4();
      const {
        privacyPolicy,
        entityMutatorFactory,
        entityLoaderFactory,
      } = createEntityMutatorFactory([
        {
-          customIdField: id1,
+          customIdField: 'hello',
          stringField: 'huh',
          testIndexedField: '3',
          numberField: 3,
@@ -541,7 +497,7 @@ describe(EntityMutatorFactory, () => {
          nullableField: null,
        },
        {
-          customIdField: id2,
+          customIdField: 'world',
          stringField: 'huh',
          testIndexedField: '4',
          numberField: 3,
@@ -553,7 +509,7 @@ describe(EntityMutatorFactory, () => {
      const spiedPrivacyPolicy = spy(privacyPolicy);

      const existingEntity = await enforceAsyncResult(
-        entityLoaderFactory.forLoad(viewerContext, queryContext).loadByIDAsync(id2)
+        entityLoaderFactory.forLoad(viewerContext, queryContext).loadByIDAsync('world')
      );

      await entityMutatorFactory
@@ -573,16 +529,13 @@ describe(EntityMutatorFactory, () => {
    it('executes triggers', async () => {
      const viewerContext = mock<ViewerContext>();
      const queryContext = StubQueryContextProvider.getQueryContext();
-
-      const id1 = uuidv4();
-      const id2 = uuidv4();
      const {
        mutationTriggers,
        entityMutatorFactory,
        entityLoaderFactory,
      } = createEntityMutatorFactory([
        {
-          customIdField: id1,
+          customIdField: 'hello',
          stringField: 'huh',
          testIndexedField: '3',
          numberField: 3,
@@ -590,7 +543,7 @@ describe(EntityMutatorFactory, () => {
          nullableField: null,
        },
        {
-          customIdField: id2,
+          customIdField: 'world',
          stringField: 'huh',
          testIndexedField: '4',
          numberField: 3,
@@ -602,7 +555,7 @@ describe(EntityMutatorFactory, () => {
      const triggerSpies = setUpMutationTriggerSpies(mutationTriggers);

      const existingEntity = await enforceAsyncResult(
-        entityLoaderFactory.forLoad(viewerContext, queryContext).loadByIDAsync(id2)
+        entityLoaderFactory.forLoad(viewerContext, queryContext).loadByIDAsync('world')
      );

      await entityMutatorFactory
@@ -610,33 +563,26 @@ describe(EntityMutatorFactory, () => {
        .setField('stringField', 'huh2')
        .enforceUpdateAsync();

-      verifyTriggerCounts(
-        viewerContext,
-        triggerSpies,
-        {
-          beforeCreate: false,
-          afterCreate: false,
-          beforeUpdate: true,
-          afterUpdate: true,
-          beforeDelete: false,
-          afterDelete: false,
-        },
-        { type: EntityMutationType.UPDATE, previousValue: existingEntity }
-      );
+      verifyTriggerCounts(viewerContext, triggerSpies, {
+        beforeCreate: false,
+        afterCreate: false,
+        beforeUpdate: true,
+        afterUpdate: true,
+        beforeDelete: false,
+        afterDelete: false,
+      });
    });
    it('executes validators', async () => {
      const viewerContext = mock<ViewerContext>();
      const queryContext = StubQueryContextProvider.getQueryContext();

-      const id1 = uuidv4();
-      const id2 = uuidv4();
      const {
        mutationValidators,
        entityMutatorFactory,
        entityLoaderFactory,
      } = createEntityMutatorFactory([
        {
-          customIdField: id1,
+          customIdField: 'hello',
          stringField: 'huh',
          testIndexedField: '3',
          numberField: 3,
@@ -644,7 +590,7 @@ describe(EntityMutatorFactory, () => {
          nullableField: null,
        },
        {
-          customIdField: id2,
+          customIdField: 'world',
          stringField: 'huh',
          testIndexedField: '4',
          numberField: 3,
@@ -656,7 +602,7 @@ describe(EntityMutatorFactory, () => {
      const validatorSpies = setUpMutationValidatorSpies(mutationValidators);

      const existingEntity = await enforceAsyncResult(
-        entityLoaderFactory.forLoad(viewerContext, queryContext).loadByIDAsync(id2)
+        entityLoaderFactory.forLoad(viewerContext, queryContext).loadByIDAsync('world')
      );

      await entityMutatorFactory
@@ -664,10 +610,7 @@ describe(EntityMutatorFactory, () => {
        .setField('stringField', 'huh2')
        .enforceUpdateAsync();

-      verifyValidatorCounts(viewerContext, validatorSpies, 1, {
-        type: EntityMutationType.UPDATE,
-        previousValue: existingEntity,
-      });
+      verifyValidatorCounts(viewerContext, validatorSpies, 1);
    });
  });

@@ -675,11 +618,9 @@ describe(EntityMutatorFactory, () => {
    it('deletes entities', async () => {
      const viewerContext = mock<ViewerContext>();
      const queryContext = StubQueryContextProvider.getQueryContext();
-
-      const id1 = uuidv4();
      const { entityMutatorFactory, entityLoaderFactory } = createEntityMutatorFactory([
        {
-          customIdField: id1,
+          customIdField: 'world',
          stringField: 'huh',
          testIndexedField: '3',
          numberField: 3,
@@ -689,7 +630,7 @@ describe(EntityMutatorFactory, () => {
      ]);

      const existingEntity = await enforceAsyncResult(
-        entityLoaderFactory.forLoad(viewerContext, queryContext).loadByIDAsync(id1)
+        entityLoaderFactory.forLoad(viewerContext, queryContext).loadByIDAsync('world')
      );
      expect(existingEntity).toBeTruthy();

@@ -697,7 +638,7 @@ describe(EntityMutatorFactory, () => {

      await expect(
        enforceAsyncResult(
-          entityLoaderFactory.forLoad(viewerContext, queryContext).loadByIDAsync(id1)
+          entityLoaderFactory.forLoad(viewerContext, queryContext).loadByIDAsync('world')
        )
      ).rejects.toBeInstanceOf(Error);
    });
@@ -705,15 +646,13 @@ describe(EntityMutatorFactory, () => {
    it('checks privacy', async () => {
      const viewerContext = mock<ViewerContext>();
      const queryContext = StubQueryContextProvider.getQueryContext();
-
-      const id1 = uuidv4();
      const {
        privacyPolicy,
        entityMutatorFactory,
        entityLoaderFactory,
      } = createEntityMutatorFactory([
        {
-          customIdField: id1,
+          customIdField: 'world',
          stringField: 'huh',
          testIndexedField: '3',
          numberField: 3,
@@ -725,7 +664,7 @@ describe(EntityMutatorFactory, () => {
      const spiedPrivacyPolicy = spy(privacyPolicy);

      const existingEntity = await enforceAsyncResult(
-        entityLoaderFactory.forLoad(viewerContext, queryContext).loadByIDAsync(id1)
+        entityLoaderFactory.forLoad(viewerContext, queryContext).loadByIDAsync('world')
      );

      await entityMutatorFactory.forDelete(existingEntity, queryContext).enforceDeleteAsync();
@@ -742,15 +681,13 @@ describe(EntityMutatorFactory, () => {
    it('executes triggers', async () => {
      const viewerContext = mock<ViewerContext>();
      const queryContext = StubQueryContextProvider.getQueryContext();
-
-      const id1 = uuidv4();
      const {
        mutationTriggers,
        entityMutatorFactory,
        entityLoaderFactory,
      } = createEntityMutatorFactory([
        {
-          customIdField: id1,
+          customIdField: 'world',
          stringField: 'huh',
          testIndexedField: '3',
          numberField: 3,
@@ -762,38 +699,31 @@ describe(EntityMutatorFactory, () => {
      const triggerSpies = setUpMutationTriggerSpies(mutationTriggers);

      const existingEntity = await enforceAsyncResult(
-        entityLoaderFactory.forLoad(viewerContext, queryContext).loadByIDAsync(id1)
+        entityLoaderFactory.forLoad(viewerContext, queryContext).loadByIDAsync('world')
      );

      await entityMutatorFactory.forDelete(existingEntity, queryContext).enforceDeleteAsync();

-      verifyTriggerCounts(
-        viewerContext,
-        triggerSpies,
-        {
-          beforeCreate: false,
-          afterCreate: false,
-          beforeUpdate: false,
-          afterUpdate: false,
-          beforeDelete: true,
-          afterDelete: true,
-        },
-        { type: EntityMutationType.DELETE }
-      );
+      verifyTriggerCounts(viewerContext, triggerSpies, {
+        beforeCreate: false,
+        afterCreate: false,
+        beforeUpdate: false,
+        afterUpdate: false,
+        beforeDelete: true,
+        afterDelete: true,
+      });
    });

    it('does not execute validators', async () => {
      const viewerContext = mock<ViewerContext>();
      const queryContext = StubQueryContextProvider.getQueryContext();
-
-      const id1 = uuidv4();
      const {
        mutationValidators,
        entityMutatorFactory,
        entityLoaderFactory,
      } = createEntityMutatorFactory([
        {
-          customIdField: id1,
+          customIdField: 'world',
          stringField: 'huh',
          testIndexedField: '3',
          numberField: 3,
@@ -805,23 +735,21 @@ describe(EntityMutatorFactory, () => {
      const validatorSpies = setUpMutationValidatorSpies(mutationValidators);

      const existingEntity = await enforceAsyncResult(
-        entityLoaderFactory.forLoad(viewerContext, queryContext).loadByIDAsync(id1)
+        entityLoaderFactory.forLoad(viewerContext, queryContext).loadByIDAsync('world')
      );

      await entityMutatorFactory.forDelete(existingEntity, queryContext).enforceDeleteAsync();

-      verifyValidatorCounts(viewerContext, validatorSpies, 0, { type: EntityMutationType.DELETE });
+      verifyValidatorCounts(viewerContext, validatorSpies, 0);
    });
  });

  it('invalidates cache for fields upon create', async () => {
    const viewerContext = mock<ViewerContext>();
    const queryContext = StubQueryContextProvider.getQueryContext();
-
-    const id1 = uuidv4();
    const { entityMutatorFactory, entityLoaderFactory } = createEntityMutatorFactory([
      {
-        customIdField: id1,
+        customIdField: 'world',
        stringField: 'huh',
        testIndexedField: '3',
        numberField: 3,
@@ -852,46 +780,11 @@ describe(EntityMutatorFactory, () => {
    expect(entities2).toHaveLength(2);
  });

-  it('throws error when field not valid', async () => {
-    const viewerContext = mock<ViewerContext>();
-    const queryContext = StubQueryContextProvider.getQueryContext();
-    const id1 = uuidv4();
-    const { entityMutatorFactory } = createEntityMutatorFactory([
-      {
-        customIdField: id1,
-        stringField: 'huh',
-        testIndexedField: '3',
-        numberField: 3,
-        dateField: new Date(),
-        nullableField: null,
-      },
-    ]);
-
-    await expect(
-      entityMutatorFactory
-        .forCreate(viewerContext, queryContext)
-        .setField('stringField', 10 as any)
-        .createAsync()
-    ).rejects.toThrowError('Entity field not valid: TestEntity (stringField = 10)');
-
-    const createdEntity = await entityMutatorFactory
-      .forCreate(viewerContext, queryContext)
-      .setField('stringField', 'hello')
-      .enforceCreateAsync();
-
-    await expect(
-      entityMutatorFactory
-        .forUpdate(createdEntity, queryContext)
-        .setField('stringField', 10 as any)
-        .updateAsync()
-    ).rejects.toThrowError('Entity field not valid: TestEntity (stringField = 10)');
-  });
-
  it('returns error result when not authorized to create', async () => {
    const viewerContext = instance(mock(ViewerContext));
    const queryContext = StubQueryContextProvider.getQueryContext();
    const privacyPolicyMock = mock(SimpleTestEntityPrivacyPolicy);
-    const databaseAdapter = instance(mock<EntityDatabaseAdapter<SimpleTestFields>>());
+    const databaseAdapter = instance(mock(EntityDatabaseAdapter));
    const metricsAdapter = instance(mock<IEntityMetricsAdapter>());
    const entityLoaderFactory = instance(
      mock<
@@ -948,9 +841,8 @@ describe(EntityMutatorFactory, () => {
    expect(entityCreateResult.reason).toEqual(rejectionError);
    expect(entityCreateResult.value).toBe(undefined);

-    const id1 = uuidv4();
    const fakeEntity = new SimpleTestEntity(viewerContext, {
-      id: id1,
+      id: 'hello',
    });

    const entityUpdateResult = await entityMutatorFactory
@@ -972,7 +864,7 @@ describe(EntityMutatorFactory, () => {
    const viewerContext = instance(mock(ViewerContext));
    const queryContext = StubQueryContextProvider.getQueryContext();
    const privacyPolicy = instance(mock(SimpleTestEntityPrivacyPolicy));
-    const databaseAdapterMock = mock<EntityDatabaseAdapter<SimpleTestFields>>();
+    const databaseAdapterMock = mock(EntityDatabaseAdapter);
    const metricsAdapter = instance(mock<IEntityMetricsAdapter>());
    const entityLoaderFactory = instance(
      mock<
@@ -1019,9 +911,8 @@ describe(EntityMutatorFactory, () => {
      metricsAdapter
    );

-    const id1 = uuidv4();
    const fakeEntity = new SimpleTestEntity(viewerContext, {
-      id: id1,
+      id: 'hello',
    });

    await expect(
@@ -1,8 +1,13 @@
 import { mock, instance, spy, verify, anyOfClass } from 'ts-mockito';

 import Entity from '../Entity';
-import { EntityCompanionDefinition } from '../EntityCompanionProvider';
+import {
+  EntityCompanionDefinition,
+  DatabaseAdapterFlavor,
+  CacheAdapterFlavor,
+} from '../EntityCompanionProvider';
 import EntityConfiguration from '../EntityConfiguration';
+import { EntityNotAuthorizedError } from '../EntityErrors';
 import { UUIDField } from '../EntityFields';
 import EntityPrivacyPolicy, {
  EntityPrivacyPolicyEvaluator,
@@ -10,7 +15,6 @@ import EntityPrivacyPolicy, {
 } from '../EntityPrivacyPolicy';
 import { EntityQueryContext } from '../EntityQueryContext';
 import ViewerContext from '../ViewerContext';
-import EntityNotAuthorizedError from '../errors/EntityNotAuthorizedError';
 import AlwaysAllowPrivacyPolicyRule from '../rules/AlwaysAllowPrivacyPolicyRule';
 import AlwaysDenyPrivacyPolicyRule from '../rules/AlwaysDenyPrivacyPolicyRule';
 import AlwaysSkipPrivacyPolicyRule from '../rules/AlwaysSkipPrivacyPolicyRule';
@@ -230,8 +234,8 @@ const blahEntityCompanionDefinition = new EntityCompanionDefinition({
        columnName: 'id',
      }),
    },
-    databaseAdapterFlavor: 'postgres',
-    cacheAdapterFlavor: 'redis',
+    databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+    cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
  }),
  privacyPolicyClass: AlwaysDenyPolicy,
 });
@@ -1,5 +1,9 @@
 import Entity from '../Entity';
-import { EntityCompanionDefinition } from '../EntityCompanionProvider';
+import {
+  DatabaseAdapterFlavor,
+  CacheAdapterFlavor,
+  EntityCompanionDefinition,
+} from '../EntityCompanionProvider';
 import EntityConfiguration from '../EntityConfiguration';
 import { UUIDField, EntityEdgeDeletionBehavior } from '../EntityFields';
 import EntityPrivacyPolicy from '../EntityPrivacyPolicy';
@@ -21,18 +25,10 @@ class CategoryPrivacyPolicy extends EntityPrivacyPolicy<
  any,
  any
 > {
-  protected readonly readRules = [
-    new AlwaysAllowPrivacyPolicyRule<CategoryFields, string, TestViewerContext, any, any>(),
-  ];
-  protected readonly createRules = [
-    new AlwaysAllowPrivacyPolicyRule<CategoryFields, string, TestViewerContext, any, any>(),
-  ];
-  protected readonly updateRules = [
-    new AlwaysAllowPrivacyPolicyRule<CategoryFields, string, TestViewerContext, any, any>(),
-  ];
-  protected readonly deleteRules = [
-    new AlwaysAllowPrivacyPolicyRule<CategoryFields, string, TestViewerContext, any, any>(),
-  ];
+  protected readonly readRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly createRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly updateRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly deleteRules = [new AlwaysAllowPrivacyPolicyRule()];
 }

 // eslint-disable-next-line @typescript-eslint/explicit-function-return-type
@@ -67,8 +63,8 @@ const makeEntityClass = (edgeDeletionBehavior: EntityEdgeDeletionBehavior) => {
        },
      }),
    },
-    databaseAdapterFlavor: 'postgres',
-    cacheAdapterFlavor: 'redis',
+    databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+    cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
  });

  const categoryEntityCompanion = new EntityCompanionDefinition({
@@ -2,6 +2,7 @@ import { instance, mock } from 'ts-mockito';

 import EntityAssociationLoader from '../EntityAssociationLoader';
 import EntityLoader from '../EntityLoader';
+import { EntityQueryContext } from '../EntityQueryContext';
 import ReadonlyEntity from '../ReadonlyEntity';
 import ViewerContext from '../ViewerContext';
 import SimpleTestEntity from '../testfixtures/SimpleTestEntity';
@@ -107,6 +108,30 @@ describe(ReadonlyEntity, () => {
    });
  });

+  describe('getRegularEntityQueryContext', () => {
+    it('creates a new regular query context', () => {
+      const companionProvider = createUnitTestEntityCompanionProvider();
+      const viewerContext = new ViewerContext(companionProvider);
+      const queryContext = SimpleTestEntity.getQueryContext(viewerContext);
+      expect(queryContext).toBeInstanceOf(EntityQueryContext);
+      expect(queryContext.isInTransaction()).toBe(false);
+    });
+  });
+
+  describe('runInTransactionAsync', () => {
+    it('creates a new transactional query context', async () => {
+      const companionProvider = createUnitTestEntityCompanionProvider();
+      const viewerContext = new ViewerContext(companionProvider);
+      const didCreateTransaction = await SimpleTestEntity.runInTransactionAsync(
+        viewerContext,
+        async (queryContext) => {
+          return queryContext.isInTransaction();
+        }
+      );
+      expect(didCreateTransaction).toBe(true);
+    });
+  });
+
  describe('loader', () => {
    it('creates a new EntityLoader', async () => {
      const companionProvider = createUnitTestEntityCompanionProvider();
@@ -1,29 +0,0 @@
-import { EntityQueryContext } from '../EntityQueryContext';
-import ViewerContext from '../ViewerContext';
-import { createUnitTestEntityCompanionProvider } from '../utils/testing/createUnitTestEntityCompanionProvider';
-
-describe(ViewerContext, () => {
-  describe('getQueryContextForDatabaseAdaptorFlavor', () => {
-    it('creates a new regular query context', () => {
-      const companionProvider = createUnitTestEntityCompanionProvider();
-      const viewerContext = new ViewerContext(companionProvider);
-      const queryContext = viewerContext.getQueryContextForDatabaseAdaptorFlavor('postgres');
-      expect(queryContext).toBeInstanceOf(EntityQueryContext);
-      expect(queryContext.isInTransaction()).toBe(false);
-    });
-  });
-
-  describe('runInTransactionForDatabaseAdaptorFlavorAsync', () => {
-    it('creates a new transactional query context', async () => {
-      const companionProvider = createUnitTestEntityCompanionProvider();
-      const viewerContext = new ViewerContext(companionProvider);
-      const didCreateTransaction = await viewerContext.runInTransactionForDatabaseAdaptorFlavorAsync(
-        'postgres',
-        async (queryContext) => {
-          return queryContext.isInTransaction();
-        }
-      );
-      expect(didCreateTransaction).toBe(true);
-    });
-  });
-});
@@ -1,5 +1,9 @@
 import Entity from '../../Entity';
-import { EntityCompanionDefinition } from '../../EntityCompanionProvider';
+import {
+  EntityCompanionDefinition,
+  DatabaseAdapterFlavor,
+  CacheAdapterFlavor,
+} from '../../EntityCompanionProvider';
 import EntityConfiguration from '../../EntityConfiguration';
 import { UUIDField, EnumField, StringField } from '../../EntityFields';
 import EntityPrivacyPolicy from '../../EntityPrivacyPolicy';
@@ -102,23 +106,15 @@ const testEntityConfiguration = new EntityConfiguration<TestFields>({
      columnName: 'entity_type',
    }),
  },
-  databaseAdapterFlavor: 'postgres',
-  cacheAdapterFlavor: 'redis',
+  databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+  cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
 });

 class TestEntityPrivacyPolicy extends EntityPrivacyPolicy<any, string, ViewerContext, any, any> {
-  protected readonly readRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, ViewerContext, any, any>(),
-  ];
-  protected readonly createRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, ViewerContext, any, any>(),
-  ];
-  protected readonly updateRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, ViewerContext, any, any>(),
-  ];
-  protected readonly deleteRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, ViewerContext, any, any>(),
-  ];
+  protected readonly readRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly createRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly updateRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly deleteRules = [new AlwaysAllowPrivacyPolicyRule()];
 }

 class OneTestEntity extends Entity<TestFields, string, ViewerContext, OneTestFields> {
@@ -1,5 +1,9 @@
 import Entity from '../../Entity';
-import { EntityCompanionDefinition } from '../../EntityCompanionProvider';
+import {
+  EntityCompanionDefinition,
+  DatabaseAdapterFlavor,
+  CacheAdapterFlavor,
+} from '../../EntityCompanionProvider';
 import EntityConfiguration from '../../EntityConfiguration';
 import { UUIDField, StringField } from '../../EntityFields';
 import EntityPrivacyPolicy from '../../EntityPrivacyPolicy';
@@ -110,23 +114,15 @@ const testEntityConfiguration = new EntityConfiguration<TestFields>({
      cache: true,
    }),
  },
-  databaseAdapterFlavor: 'postgres',
-  cacheAdapterFlavor: 'redis',
+  databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+  cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
 });

 class TestEntityPrivacyPolicy extends EntityPrivacyPolicy<any, string, ViewerContext, any, any> {
-  protected readonly readRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, ViewerContext, any, any>(),
-  ];
-  protected readonly createRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, ViewerContext, any, any>(),
-  ];
-  protected readonly updateRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, ViewerContext, any, any>(),
-  ];
-  protected readonly deleteRules = [
-    new AlwaysAllowPrivacyPolicyRule<any, string, ViewerContext, any, any>(),
-  ];
+  protected readonly readRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly createRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly updateRules = [new AlwaysAllowPrivacyPolicyRule()];
+  protected readonly deleteRules = [new AlwaysAllowPrivacyPolicyRule()];
 }

 class OneTestEntity extends Entity<TestFields, string, ViewerContext, OneTestFields> {
@@ -1,8 +0,0 @@
-import EntityError, { EntityErrorCode, EntityErrorState } from './EntityError';
-
-export default abstract class EntityCacheAdapterError extends EntityError {}
-
-export class EntityCacheAdapterTransientError extends EntityCacheAdapterError {
-  public readonly state = EntityErrorState.TRANSIENT;
-  public readonly code = EntityErrorCode.ERR_ENTITY_CACHE_ADAPTER_TRANSIENT;
-}
@@ -1,38 +0,0 @@
-import EntityError, { EntityErrorCode, EntityErrorState } from './EntityError';
-
-export default abstract class EntityDatabaseAdapterError extends EntityError {}
-
-export class EntityDatabaseAdapterTransientError extends EntityDatabaseAdapterError {
-  public readonly state = EntityErrorState.TRANSIENT;
-  public readonly code = EntityErrorCode.ERR_ENTITY_DATABASE_ADAPTER_TRANSIENT;
-}
-
-export class EntityDatabaseAdapterUnknownError extends EntityDatabaseAdapterError {
-  public readonly state = EntityErrorState.UNKNOWN;
-  public readonly code = EntityErrorCode.ERR_ENTITY_DATABASE_ADAPTER_UNKNOWN;
-}
-
-export class EntityDatabaseAdapterCheckConstraintError extends EntityDatabaseAdapterError {
-  public readonly state = EntityErrorState.PERMANENT;
-  public readonly code = EntityErrorCode.ERR_ENTITY_DATABASE_ADAPTER_CHECK_CONSTRAINT;
-}
-
-export class EntityDatabaseAdapterExclusionConstraintError extends EntityDatabaseAdapterError {
-  public readonly state = EntityErrorState.PERMANENT;
-  public readonly code = EntityErrorCode.ERR_ENTITY_DATABASE_ADAPTER_EXCLUSION_CONSTRAINT;
-}
-
-export class EntityDatabaseAdapterForeignKeyConstraintError extends EntityDatabaseAdapterError {
-  public readonly state = EntityErrorState.PERMANENT;
-  public readonly code = EntityErrorCode.ERR_ENTITY_DATABASE_ADAPTER_FOREIGN_KEY_CONSTRAINT;
-}
-
-export class EntityDatabaseAdapterNotNullConstraintError extends EntityDatabaseAdapterError {
-  public readonly state = EntityErrorState.PERMANENT;
-  public readonly code = EntityErrorCode.ERR_ENTITY_DATABASE_ADAPTER_NOT_NULL_CONSTRAINT;
-}
-
-export class EntityDatabaseAdapterUniqueConstraintError extends EntityDatabaseAdapterError {
-  public readonly state = EntityErrorState.PERMANENT;
-  public readonly code = EntityErrorCode.ERR_ENTITY_DATABASE_ADAPTER_UNIQUE_CONSTRAINT;
-}
@@ -1,30 +0,0 @@
-import ES6Error from 'es6-error';
-
-export enum EntityErrorState {
-  UNKNOWN,
-  TRANSIENT,
-  PERMANENT,
-}
-
-export enum EntityErrorCode {
-  ERR_ENTITY_NOT_AUTHORIZED = 'ERR_ENTITY_NOT_AUTHORIZED',
-  ERR_ENTITY_NOT_FOUND = 'ERR_ENTITY_NOT_FOUND',
-  ERR_ENTITY_INVALID_FIELD_VALUE = 'ERR_ENTITY_INVALID_FIELD_VALUE',
-  ERR_ENTITY_DATABASE_ADAPTER_TRANSIENT = 'ERR_ENTITY_DATABASE_ADAPTER_TRANSIENT',
-  ERR_ENTITY_DATABASE_ADAPTER_UNKNOWN = 'ERR_ENTITY_DATABASE_ADAPTER_UNKNOWN',
-  ERR_ENTITY_DATABASE_ADAPTER_CHECK_CONSTRAINT = 'ERR_ENTITY_DATABASE_ADAPTER_CHECK_CONSTRAINT',
-  ERR_ENTITY_DATABASE_ADAPTER_EXCLUSION_CONSTRAINT = 'ERR_ENTITY_DATABASE_ADAPTER_EXCLUSION_CONSTRAINT',
-  ERR_ENTITY_DATABASE_ADAPTER_FOREIGN_KEY_CONSTRAINT = 'ERR_ENTITY_DATABASE_ADAPTER_FOREIGN_KEY_CONSTRAINT',
-  ERR_ENTITY_DATABASE_ADAPTER_NOT_NULL_CONSTRAINT = 'ERR_ENTITY_DATABASE_ADAPTER_NOT_NULL_CONSTRAINT',
-  ERR_ENTITY_DATABASE_ADAPTER_UNIQUE_CONSTRAINT = 'ERR_ENTITY_DATABASE_ADAPTER_UNIQUE_CONSTRAINT',
-  ERR_ENTITY_CACHE_ADAPTER_TRANSIENT = 'ERR_ENTITY_CACHE_ADAPTER_TRANSIENT',
-}
-
-export default abstract class EntityError extends ES6Error {
-  public abstract readonly state: EntityErrorState;
-  public abstract readonly code: EntityErrorCode;
-
-  constructor(message: string, public readonly cause?: Error) {
-    super(message);
-  }
-}
@@ -1,39 +0,0 @@
-import { IEntityClass } from '../Entity';
-import EntityPrivacyPolicy from '../EntityPrivacyPolicy';
-import ReadonlyEntity from '../ReadonlyEntity';
-import ViewerContext from '../ViewerContext';
-import EntityError, { EntityErrorCode, EntityErrorState } from './EntityError';
-
-export default class EntityInvalidFieldValueError<
-  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
-  TViewerContext extends ViewerContext,
-  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
-  TPrivacyPolicy extends EntityPrivacyPolicy<
-    TFields,
-    TID,
-    TViewerContext,
-    TEntity,
-    TSelectedFields
-  >,
-  N extends keyof TFields,
-  TSelectedFields extends keyof TFields = keyof TFields
-> extends EntityError {
-  public readonly state = EntityErrorState.PERMANENT;
-  public readonly code = EntityErrorCode.ERR_ENTITY_INVALID_FIELD_VALUE;
-
-  constructor(
-    entityClass: IEntityClass<
-      TFields,
-      TID,
-      TViewerContext,
-      TEntity,
-      TPrivacyPolicy,
-      TSelectedFields
-    >,
-    fieldName: N,
-    fieldValue?: TFields[N]
-  ) {
-    super(`Entity field not valid: ${entityClass.name} (${fieldName} = ${fieldValue})`);
-  }
-}
@@ -1,29 +0,0 @@
-import { EntityAuthorizationAction } from '../EntityPrivacyPolicy';
-import ReadonlyEntity from '../ReadonlyEntity';
-import ViewerContext from '../ViewerContext';
-import EntityError, { EntityErrorCode, EntityErrorState } from './EntityError';
-
-export default class EntityNotAuthorizedError<
-  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
-  TViewerContext extends ViewerContext,
-  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
-  TSelectedFields extends keyof TFields = keyof TFields
-> extends EntityError {
-  public readonly state = EntityErrorState.PERMANENT;
-  public readonly code = EntityErrorCode.ERR_ENTITY_NOT_AUTHORIZED;
-
-  public readonly entityClassName: string;
-
-  constructor(
-    entity: TEntity,
-    viewerContext: TViewerContext,
-    action: EntityAuthorizationAction,
-    ruleIndex: number
-  ) {
-    super(
-      `Entity not authorized: ${entity} (viewer = ${viewerContext}, action = ${EntityAuthorizationAction[action]}, ruleIndex = ${ruleIndex})`
-    );
-    this.entityClassName = entity.constructor.name;
-  }
-}
@@ -1,39 +0,0 @@
-import { IEntityClass } from '../Entity';
-import EntityPrivacyPolicy from '../EntityPrivacyPolicy';
-import ReadonlyEntity from '../ReadonlyEntity';
-import ViewerContext from '../ViewerContext';
-import EntityError, { EntityErrorCode, EntityErrorState } from './EntityError';
-
-export default class EntityNotFoundError<
-  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
-  TViewerContext extends ViewerContext,
-  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
-  TPrivacyPolicy extends EntityPrivacyPolicy<
-    TFields,
-    TID,
-    TViewerContext,
-    TEntity,
-    TSelectedFields
-  >,
-  N extends keyof TFields,
-  TSelectedFields extends keyof TFields = keyof TFields
-> extends EntityError {
-  public readonly state = EntityErrorState.PERMANENT;
-  public readonly code = EntityErrorCode.ERR_ENTITY_NOT_FOUND;
-
-  constructor(
-    entityClass: IEntityClass<
-      TFields,
-      TID,
-      TViewerContext,
-      TEntity,
-      TPrivacyPolicy,
-      TSelectedFields
-    >,
-    fieldName: N,
-    fieldValue: TFields[N]
-  ) {
-    super(`Entity not found: ${entityClass.name} (${fieldName} = ${fieldValue})`);
-  }
-}
@@ -1,9 +1,3 @@
-/* eslint-disable tsdoc/syntax */
-/**
- * @packageDocumentation
- * @module @expo/entity
- */
-
 export { default as EnforcingEntityLoader } from './EnforcingEntityLoader';
 export { default as Entity } from './Entity';
 export * from './Entity';
@@ -17,14 +11,7 @@ export * from './EntityCompanionProvider';
 export { default as EntityConfiguration } from './EntityConfiguration';
 export { default as EntityDatabaseAdapter } from './EntityDatabaseAdapter';
 export * from './EntityDatabaseAdapter';
-export { default as EntityDatabaseAdapterError } from './errors/EntityDatabaseAdapterError';
-export * from './errors/EntityDatabaseAdapterError';
-export { default as EntityCacheAdapterError } from './errors/EntityCacheAdapterError';
-export * from './errors/EntityCacheAdapterError';
-export * from './errors/EntityError';
-export { default as EntityError } from './errors/EntityError';
-export { default as EntityNotAuthorizedError } from './errors/EntityNotAuthorizedError';
-export { default as EntityNotFoundError } from './errors/EntityNotFoundError';
+export * from './EntityErrors';
 export * from './EntityFields';
 export { default as EntityLoader } from './EntityLoader';
 export { default as EntityLoaderFactory } from './EntityLoaderFactory';
@@ -4,7 +4,7 @@ import EntityDatabaseAdapter, {
  FieldEqualityCondition,
  QuerySelectionModifiers,
 } from '../EntityDatabaseAdapter';
-import { EntityQueryContext } from '../EntityQueryContext';
+import { EntityQueryContext, EntityTransactionalQueryContext } from '../EntityQueryContext';
 import EntityQueryContextProvider from '../EntityQueryContextProvider';
 import { partitionErrors } from '../entityUtils';
 import {
@@ -15,6 +15,13 @@ import IEntityMetricsAdapter, { EntityMetricsLoadType } from '../metrics/IEntity
 import { computeIfAbsent, zipToMap } from '../utils/collections/maps';
 import ReadThroughEntityCache from './ReadThroughEntityCache';

+type FieldDataLoader<TFields> = DataLoader<
+  NonNullable<TFields[keyof TFields]>,
+  readonly Readonly<TFields>[]
+>;
+
+type FieldDataLoadersMap<TFields> = Map<keyof TFields, FieldDataLoader<TFields>>;
+
 /**
 * A data manager is responsible for orchestrating multiple sources of entity
 * data including local caches, {@link EntityCacheAdapter}, and {@link EntityDatabaseAdapter}.
@@ -22,9 +29,11 @@ import ReadThroughEntityCache from './ReadThroughEntityCache';
 * It is also responsible for invalidating all sources of data when mutated using {@link EntityMutator}.
 */
 export default class EntityDataManager<TFields> {
-  private readonly fieldDataLoaders: Map<
-    keyof TFields,
-    DataLoader<NonNullable<TFields[keyof TFields]>, readonly Readonly<TFields>[]>
+  private readonly regularFieldDataLoaders: FieldDataLoadersMap<TFields> = new Map();
+
+  private readonly transactionalFieldDataLoaders: Map<
+    string,
+    FieldDataLoadersMap<TFields>
  > = new Map();

  constructor(
@@ -35,10 +44,10 @@ export default class EntityDataManager<TFields> {
    private readonly entityClassName: string
  ) {}

-  private getFieldDataLoaderForFieldName<N extends keyof TFields>(
+  private getRegularFieldDataLoderForFieldName<N extends keyof TFields>(
    fieldName: N
-  ): DataLoader<NonNullable<TFields[N]>, readonly Readonly<TFields>[]> {
-    return computeIfAbsent(this.fieldDataLoaders, fieldName, () => {
+  ): FieldDataLoader<TFields> {
+    return computeIfAbsent(this.regularFieldDataLoaders, fieldName, () => {
      return new DataLoader(
        async (
          fieldValues: readonly NonNullable<TFields[N]>[]
@@ -53,6 +62,43 @@ export default class EntityDataManager<TFields> {
    });
  }

+  private getTransactionalFieldDataLoaderForFieldName<N extends keyof TFields>(
+    queryContext: EntityTransactionalQueryContext,
+    fieldName: N
+  ): FieldDataLoader<TFields> {
+    const fieldDataLoaderMap = computeIfAbsent(
+      this.transactionalFieldDataLoaders,
+      queryContext.transactionID,
+      () => new Map<keyof TFields, FieldDataLoader<TFields>>()
+    );
+    return computeIfAbsent(fieldDataLoaderMap, fieldName, () => {
+      return new DataLoader(
+        async (
+          fieldValues: readonly NonNullable<TFields[N]>[]
+        ): Promise<readonly (readonly TFields[])[]> => {
+          const objectMap = await this.loadManyForTransactionalDataLoaderByFieldEqualingAsync(
+            fieldName,
+            fieldValues,
+            queryContext
+          );
+          return fieldValues.map((fv) => objectMap.get(fv) ?? []);
+        }
+      );
+    });
+  }
+
+  private async loadManyForTransactionalDataLoaderByFieldEqualingAsync<N extends keyof TFields>(
+    fieldName: N,
+    fieldValues: readonly NonNullable<TFields[N]>[],
+    queryContext: EntityTransactionalQueryContext
+  ): Promise<ReadonlyMap<NonNullable<TFields[N]>, readonly Readonly<TFields>[]>> {
+    this.metricsAdapter.incrementDataManagerDatabaseLoadCount({
+      fieldValueCount: fieldValues.length,
+      entityClassName: this.entityClassName,
+    });
+    return await this.databaseAdapter.fetchManyWhereAsync(queryContext, fieldName, fieldValues);
+  }
+
  private async loadManyForDataLoaderByFieldEqualingAsync<N extends keyof TFields>(
    fieldName: N,
    fieldValues: readonly NonNullable<TFields[N]>[]
@@ -61,10 +107,11 @@ export default class EntityDataManager<TFields> {
      fieldValueCount: fieldValues.length,
      entityClassName: this.entityClassName,
    });
+
    return await this.entityCache.readManyThroughAsync(
      fieldName,
      fieldValues,
-      async (fetcherValues) => {
+      async (fetcherValues: readonly NonNullable<TFields[N]>[]) => {
        this.metricsAdapter.incrementDataManagerDatabaseLoadCount({
          fieldValueCount: fieldValues.length,
          entityClassName: this.entityClassName,
@@ -112,16 +159,13 @@ export default class EntityDataManager<TFields> {
      );
    }

-    // don't cache when in transaction, as rollbacks complicate things significantly
-    if (queryContext.isInTransaction()) {
-      return await this.databaseAdapter.fetchManyWhereAsync(queryContext, fieldName, fieldValues);
-    }
-
    this.metricsAdapter.incrementDataManagerDataloaderLoadCount({
      fieldValueCount: fieldValues.length,
      entityClassName: this.entityClassName,
    });
-    const dataLoader = this.getFieldDataLoaderForFieldName(fieldName);
+    const dataLoader = queryContext.isInTransaction()
+      ? this.getTransactionalFieldDataLoaderForFieldName(queryContext, fieldName)
+      : this.getRegularFieldDataLoderForFieldName(fieldName);
    const results = await dataLoader.loadMany(fieldValues);
    const [values, errors] = partitionErrors(results);
    if (errors.length > 0) {
@@ -192,7 +236,20 @@ export default class EntityDataManager<TFields> {
    fieldValues: readonly NonNullable<TFields[N]>[]
  ): Promise<void> {
    await this.entityCache.invalidateManyAsync(fieldName, fieldValues);
-    const dataLoader = this.getFieldDataLoaderForFieldName(fieldName);
+    const dataLoader = this.getRegularFieldDataLoderForFieldName(fieldName);
+    fieldValues.forEach((fieldValue) => dataLoader.clear(fieldValue));
+  }
+
+  private async invalidateManyByFieldEqualingTransactionalAsync<N extends keyof TFields>(
+    queryContext: EntityQueryContext,
+    fieldName: N,
+    fieldValues: readonly NonNullable<TFields[N]>[]
+  ): Promise<void> {
+    if (!queryContext.isInTransaction()) {
+      return;
+    }
+
+    const dataLoader = this.getTransactionalFieldDataLoaderForFieldName(queryContext, fieldName);
    fieldValues.forEach((fieldValue) => dataLoader.clear(fieldValue));
  }

@@ -215,4 +272,21 @@ export default class EntityDataManager<TFields> {
      })
    );
  }
+
+  async invalidateObjectFieldsTransactionalAsync(
+    queryContext: EntityQueryContext,
+    objectFields: Readonly<TFields>
+  ): Promise<void> {
+    const keys = Object.keys(objectFields) as (keyof TFields)[];
+    await Promise.all(
+      keys.map(async (fieldName: keyof TFields) => {
+        const value = objectFields[fieldName];
+        if (value !== undefined) {
+          await this.invalidateManyByFieldEqualingTransactionalAsync(queryContext, fieldName, [
+            value as NonNullable<TFields[keyof TFields]>,
+          ]);
+        }
+      })
+    );
+  }
 }
@@ -442,12 +442,12 @@ describe(EntityDataManager, () => {
  });

  it('handles DB errors as expected', async () => {
-    const databaseAdapterMock = mock<EntityDatabaseAdapter<TestFields>>();
+    const databaseAdapterMock = mock(EntityDatabaseAdapter);
    when(databaseAdapterMock.fetchManyWhereAsync(anything(), anything(), anything())).thenReject(
      new Error('DB query failed')
    );

-    const databaseAdapter = instance(databaseAdapterMock);
+    const databaseAdapter: EntityDatabaseAdapter<TestFields> = instance(databaseAdapterMock);
    const cacheAdapterProvider = new NoCacheStubCacheAdapterProvider();
    const cacheAdapter = cacheAdapterProvider.getCacheAdapter(testEntityConfiguration);
    const entityCache = new ReadThroughEntityCache(testEntityConfiguration, cacheAdapter);
@@ -1,3 +1,4 @@
+import { DatabaseAdapterFlavor, CacheAdapterFlavor } from '../../EntityCompanionProvider';
 import EntityConfiguration from '../../EntityConfiguration';
 import { UUIDField, StringField } from '../../EntityFields';
 import {
@@ -37,8 +38,8 @@ const blahEntityConfiguration = new EntityConfiguration<BlahT>({
      columnName: 'transform_write',
    }),
  },
-  databaseAdapterFlavor: 'postgres',
-  cacheAdapterFlavor: 'redis',
+  databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+  cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
 });

 describe(getDatabaseFieldForEntityField, () => {
@@ -1,6 +1,7 @@
 import { verify, deepEqual, mock, instance, when, anything } from 'ts-mockito';

 import EntityCacheAdapter from '../../EntityCacheAdapter';
+import { DatabaseAdapterFlavor, CacheAdapterFlavor } from '../../EntityCompanionProvider';
 import EntityConfiguration from '../../EntityConfiguration';
 import { UUIDField } from '../../EntityFields';
 import ReadThroughEntityCache, { CacheStatus } from '../ReadThroughEntityCache';
@@ -16,8 +17,8 @@ const makeEntityConfiguration = (cacheIdField: boolean): EntityConfiguration<Bla
    schema: {
      id: new UUIDField({ columnName: 'id', cache: cacheIdField }),
    },
-    databaseAdapterFlavor: 'postgres',
-    cacheAdapterFlavor: 'redis',
+    databaseAdapterFlavor: DatabaseAdapterFlavor.POSTGRES,
+    cacheAdapterFlavor: CacheAdapterFlavor.REDIS,
  });

 const createIdFetcher = (ids: string[]) => async <N extends keyof BlahFields>(
@@ -8,7 +8,7 @@ import PrivacyPolicyRule, { RuleEvaluationResult } from './PrivacyPolicyRule';
 */
 export default class AlwaysAllowPrivacyPolicyRule<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
  TSelectedFields extends keyof TFields = keyof TFields
@@ -8,7 +8,7 @@ import PrivacyPolicyRule, { RuleEvaluationResult } from './PrivacyPolicyRule';
 */
 export default class AlwaysDenyPrivacyPolicyRule<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
  TSelectedFields extends keyof TFields = keyof TFields
@@ -8,7 +8,7 @@ import PrivacyPolicyRule, { RuleEvaluationResult } from './PrivacyPolicyRule';
 */
 export default class AlwaysSkipPrivacyPolicyRule<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
  TSelectedFields extends keyof TFields = keyof TFields
@@ -37,12 +37,12 @@ export enum RuleEvaluationResult {
 */
 export default abstract class PrivacyPolicyRule<
  TFields,
-  TID extends NonNullable<TFields[TSelectedFields]>,
+  TID,
  TViewerContext extends ViewerContext,
  TEntity extends ReadonlyEntity<TFields, TID, TViewerContext, TSelectedFields>,
  TSelectedFields extends keyof TFields = keyof TFields
 > {
-  abstract evaluateAsync(
+  abstract async evaluateAsync(
    viewerContext: TViewerContext,
    queryContext: EntityQueryContext,
    entity: TEntity