mirror of
https://gitee.com/openharmony/interface_sdk-js
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1802 lines
72 KiB
TypeScript
1802 lines
72 KiB
TypeScript
/*
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* Copyright (c) 2021 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import { AsyncCallback, Callback } from './basic';
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/**
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* Providers interfaces to creat a {@link KVManager} istances.
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
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* @import N/A
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*/
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declare namespace distributedData {
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/**
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* Provides configuration information for {@link KVManager} instances,
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* including the caller's package name and distributed network type.
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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interface KVManagerConfig {
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/**
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* Indicates the user information
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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userInfo: UserInfo;
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/**
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* Indicates the bundleName
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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bundleName: string;
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}
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/**
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* Manages user information.
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*
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* <p>This class provides methods for obtaining the user ID and type, setting the user ID and type,
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* and checking whether two users are the same.
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*
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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interface UserInfo {
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/**
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* Indicates the user ID to set
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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userId?: string;
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/**
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* Indicates the user type to set
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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userType?: UserType;
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}
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/**
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* Enumerates user types.
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*
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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enum UserType {
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/**
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* Indicates a user that logs in to different devices using the same account.
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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SAME_USER_ID = 0
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}
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/**
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* KVStore constants
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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namespace Constants {
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/**
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* max key length.
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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const MAX_KEY_LENGTH = 1024;
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/**
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* max value length.
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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const MAX_VALUE_LENGTH = 4194303;
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/**
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* max device coordinate key length.
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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const MAX_KEY_LENGTH_DEVICE = 896;
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/**
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* max store id length.
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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const MAX_STORE_ID_LENGTH = 128;
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/**
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* max query length.
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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const MAX_QUERY_LENGTH = 512000;
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/**
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* max batch operation size.
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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const MAX_BATCH_SIZE = 128;
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}
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/**
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* Indicates the {@code ValueType}.
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*
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* <p>{@code ValueType} is obtained based on the value.
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*
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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enum ValueType {
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/**
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* Indicates that the value type is string.
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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STRING = 0,
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/**
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* Indicates that the value type is int.
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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INTEGER = 1,
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/**
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* Indicates that the value type is float.
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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FLOAT = 2,
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/**
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* Indicates that the value type is byte array.
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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* */
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BYTE_ARRAY = 3,
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/**
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* Indicates that the value type is boolean.
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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* */
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BOOLEAN = 4,
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/**
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* Indicates that the value type is double.
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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DOUBLE = 5
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}
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/**
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* Obtains {@code Value} objects stored in a {@link KVStore} database.
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*
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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interface Value {
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/**
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* Indicates value type
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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* @see ValueType
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* @type {number}
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* @memberof Value
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*/
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type: ValueType;
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/**
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* Indicates value
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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value: Uint8Array | string | number | boolean;
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}
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/**
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* Provides key-value pairs stored in the distributed database.
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*
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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interface Entry {
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/**
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* Indicates key
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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key: string;
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/**
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* Indicates value
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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value: Value;
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}
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/**
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* Receives notifications of all data changes, including data insertion, update, and deletion.
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*
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* <p>If you have subscribed to {@code KVStore}, you will receive data change notifications and obtain the changed data
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* from the parameters in callback methods upon data insertion, update, or deletion.
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*
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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interface ChangeNotification {
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/**
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* Indicates data addition records.
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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insertEntries: Entry[];
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/**
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* Indicates data update records.
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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updateEntries: Entry[];
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/**
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* Indicates data deletion records.
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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deleteEntries: Entry[];
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/**
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* Indicates from device id.
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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deviceId: string;
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}
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/**
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* Indicates the database synchronization mode.
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*
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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enum SyncMode {
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/**
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* Indicates that data is only pulled from the remote end.
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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PULL_ONLY = 0,
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/**
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* Indicates that data is only pushed from the local end.
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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PUSH_ONLY = 1,
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/**
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* Indicates that data is pushed from the local end, and then pulled from the remote end.
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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PUSH_PULL = 2
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}
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/**
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* Describes the subscription type.
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*
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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enum SubscribeType {
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/**
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* Subscription to local data changes
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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SUBSCRIBE_TYPE_LOCAL = 0,
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/**
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* Subscription to remote data changes
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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SUBSCRIBE_TYPE_REMOTE = 1,
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/**
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* Subscription to both local and remote data changes
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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SUBSCRIBE_TYPE_ALL = 2,
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}
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/**
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* Describes the {@code KVStore} type.
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*
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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enum KVStoreType {
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/**
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* Device-collaborated database, as specified by {@code DeviceKVStore}
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
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* @import N/A
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*/
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DEVICE_COLLABORATION = 0,
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/**
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* Single-version database, as specified by {@code SingleKVStore}
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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SINGLE_VERSION = 1,
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/**
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* Multi-version database, as specified by {@code MultiKVStore}
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
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* @import N/A
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*/
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MULTI_VERSION = 2,
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}
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/**
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* Describes the {@code KVStore} type.
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*
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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enum SecurityLevel {
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/**
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* NO_LEVEL: mains not set the security level.
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*
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
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* @import N/A
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*/
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NO_LEVEL = 0,
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/**
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* S0: mains the db is public.
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* There is no impact even if the data is leaked.
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*
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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S0 = 1,
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/**
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* S1: mains the db is low level security
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* There are some low impact, when the data is leaked.
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*
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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S1 = 2,
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/**
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* S2: mains the db is middle level security
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* There are some major impact, when the data is leaked.
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*
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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S2 = 3,
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/**
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* S3: mains the db is high level security
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* There are some severity impact, when the data is leaked.
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*
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
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* @import N/A
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*/
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S3 = 5,
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/**
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* S4: mains the db is critical level security
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* There are some critical impact, when the data is leaked.
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*
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* @since 7
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
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* @import N/A
|
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*/
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S4 = 6,
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}
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/**
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* Provides configuration options for creating a {@code KVStore}.
|
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*
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* <p>You can determine whether to create another database if a {@code KVStore} database is missing,
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* whether to encrypt the database, and the database type.
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*
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* @since 7
|
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* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
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* @import N/A
|
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*/
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interface Options {
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/**
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* Indicates whether to createa database when the database file does not exist
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||
* @since 7
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
*/
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createIfMissing?: boolean;
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/**
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* Indicates setting whether database files are encrypted
|
||
* @since 7
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
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* @import N/A
|
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*/
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encrypt?: boolean;
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/**
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* Indicates setting whether to back up database files
|
||
* @since 7
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
*/
|
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backup?: boolean;
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||
/**
|
||
* Indicates setting whether database files are automatically synchronized
|
||
* @since 7
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @permission ohos.permission.DISTRIBUTED_DATASYNC
|
||
* @import N/A
|
||
*/
|
||
autoSync?: boolean;
|
||
/**
|
||
* Indicates setting the databse type
|
||
* @since 7
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
*/
|
||
kvStoreType?: KVStoreType;
|
||
/**
|
||
* Indicates setting the database security level
|
||
* @since 7
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
*/
|
||
securityLevel?: SecurityLevel;
|
||
/**
|
||
* Indicates schema object
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
* @import N/A
|
||
*/
|
||
schema?: Schema;
|
||
}
|
||
|
||
/**
|
||
* Represents the database schema.
|
||
*
|
||
* You can create Schema objects and put them in Options when creating or opening the database.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
* @import N/A
|
||
*/
|
||
class Schema {
|
||
/**
|
||
* A constructor used to create a Schema instance.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
*/
|
||
constructor()
|
||
/**
|
||
* Indicates the root json object.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
*/
|
||
root: FieldNode;
|
||
/**
|
||
* Indicates the string array of json.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
*/
|
||
indexes: Array<string>;
|
||
/**
|
||
* Indicates the mode of schema.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
*/
|
||
mode: number;
|
||
/**
|
||
* Indicates the skipsize of schema.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
*/
|
||
skip: number;
|
||
}
|
||
|
||
/**
|
||
* Represents a node of a {@link Schema} instance.
|
||
*
|
||
* <p>Through the {@link Schema} instance, you can define the fields contained in the values stored in a database.
|
||
*
|
||
* <p>A FieldNode of the {@link Schema} instance is either a leaf or a non-leaf node.
|
||
*
|
||
* <p>The leaf node must have a value; the non-leaf node must have a child {@code FieldNode}.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
* @import N/A
|
||
*/
|
||
class FieldNode {
|
||
/**
|
||
* A constructor used to create a FieldNode instance with the specified field.
|
||
* name Indicates the field node name.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
*/
|
||
constructor(name: string)
|
||
/**
|
||
* Adds a child node to this {@code FieldNode}.
|
||
*
|
||
* <p>Adding a child node makes this node a non-leaf node. Field value will be ignored if it has child node.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
* @param child The field node to append.
|
||
* @returns Returns true if the child node is successfully added to this {@code FieldNode}; returns false otherwise.
|
||
*/
|
||
appendChild(child: FieldNode): boolean;
|
||
/**
|
||
* Indicates the default value of fieldnode.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
*/
|
||
default: string;
|
||
/**
|
||
* Indicates the nullable of database field.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
*/
|
||
nullable: boolean;
|
||
/**
|
||
* Indicates the type of value.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
*/
|
||
type: number;
|
||
}
|
||
|
||
/**
|
||
* Provide methods to obtain the result set of the {@code KvStore} database.
|
||
*
|
||
* <p>The result set is created by using the {@code getResultSet} method in the {@code DeviceKVStore} class. This interface also provides
|
||
* methods for moving the data read position in the result set.
|
||
*
|
||
* @since 7
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
*/
|
||
interface KvStoreResultSet {
|
||
/**
|
||
* Obtains the number of lines in a result set.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @returns Returns the number of lines.
|
||
*/
|
||
getCount(): number;
|
||
/**
|
||
* Obtains the current read position in a result set.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @returns Returns the current read position. The read position starts with 0.
|
||
*/
|
||
getPosition(): number;
|
||
/**
|
||
* Moves the read position to the first line.
|
||
*
|
||
* <p>If the result set is empty, false is returned.
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @returns Returns true if the operation succeeds; return false otherwise.
|
||
*/
|
||
moveToFirst(): boolean;
|
||
/**
|
||
* Moves the read position to the last line.
|
||
*
|
||
* <p>If the result set is empty, false is returned.
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @returns Returns true if the operation succeeds; return false otherwise.
|
||
*/
|
||
moveToLast(): boolean;
|
||
/**
|
||
* Moves the read position to the next line.
|
||
*
|
||
* <p>If the result set is empty or the data in the last line is being read, false is returned.
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @returns Returns true if the operation succeeds; return false otherwise.
|
||
*/
|
||
moveToNext(): boolean;
|
||
/**
|
||
* Moves the read position to the previous line.
|
||
*
|
||
* <p>If the result set is empty or the data in the first line is being read, false is returned.
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @returns Returns true if the operation succeeds; return false otherwise.
|
||
*/
|
||
moveToPrevious(): boolean;
|
||
/**
|
||
* Moves the read position by a relative offset to the current position.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @param offset Indicates the relative offset to the current position. Anegative offset indicates moving backwards, and a
|
||
* positive offset indicates moving forewards. Forexample, if the current position is entry 1 and thisoffset is 2,
|
||
* the destination position will be entry 3; ifthe current position is entry 3 and this offset is -2,
|
||
* the destination position will be entry 1. The valid final position after moving forwards starts with 0. If the
|
||
* final position is invalid, false will be returned.
|
||
* @returns Returns true if the operation succeeds; return false otherwise.
|
||
*/
|
||
move(offset: number): boolean;
|
||
/**
|
||
* Moves the read position from 0 to an absolute position.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @param position Indicates the absolute position.
|
||
* @returns Returns true if the operation succeeds; return false otherwise.
|
||
*/
|
||
moveToPosition(position: number): boolean;
|
||
/**
|
||
* Checks whether the read position is the first line.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
|
||
* @returns Returns true if the read position is the first line; returns false otherwise.
|
||
*/
|
||
isFirst(): boolean;
|
||
/**
|
||
* Checks whether the read position is the last line.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @returns Returns true if the read position is the last line; returns false otherwise.
|
||
*/
|
||
isLast(): boolean;
|
||
/**
|
||
* Checks whether the read position is before the last line.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @returns Returns true if the read position is before the first line; returns false otherwise.
|
||
*/
|
||
isBeforeFirst(): boolean;
|
||
/**
|
||
* Checks whether the read position is after the last line.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @returns Returns true if the read position is after the last line; returns false otherwise.
|
||
*/
|
||
isAfterLast(): boolean;
|
||
/**
|
||
* Obtains a key-value pair.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @returns Returns a key-value pair.
|
||
*/
|
||
getEntry(): Entry;
|
||
}
|
||
|
||
/**
|
||
* Represents a database query using a predicate.
|
||
*
|
||
* <p>This class provides a constructor used to create a {@code Query} instance, which is used to query data matching specified
|
||
* conditions in the database.
|
||
*
|
||
* <p>This class also provides methods for adding predicates to the {@code Query} instance.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
*/
|
||
class Query {
|
||
/**
|
||
* A constructor used to create a Query instance.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
*/
|
||
constructor()
|
||
/**
|
||
* Resets this {@code Query} object.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @returns Returns the reset {@code Query} object.
|
||
*/
|
||
reset(): Query;
|
||
/**
|
||
* Constructs a {@code Query} object to query entries with the specified field whose value is equal to the specified long value.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param field Indicates the field, which must start with $. and cannot contain ^.
|
||
* @param value IIndicates the long value.
|
||
* @returns Returns the {@coed Query} object.
|
||
* @throws Throws this exception if input is invalid.
|
||
*/
|
||
equalTo(field: string, value: number|string|boolean): Query;
|
||
/**
|
||
* Constructs a {@code Query} object to query entries with the specified field whose value is not equal to the specified int value.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param field Indicates the field, which must start with $. and cannot contain ^.
|
||
* @param value Indicates the int value.
|
||
* @returns Returns the {@coed Query} object.
|
||
* @throws Throws this exception if input is invalid.
|
||
*/
|
||
notEqualTo(field: string, value: number|string|boolean): Query;
|
||
/**
|
||
* Constructs a {@code Query} object to query entries with the specified field whose value is greater than or equal to the
|
||
* specified int value.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param field Indicates the field, which must start with $. and cannot contain ^.
|
||
* @param value Indicates the int value.
|
||
* @returns Returns the {@coed Query} object.
|
||
* @throws Throws this exception if input is invalid.
|
||
*/
|
||
greaterThan(field: string, value: number|string|boolean): Query;
|
||
/**
|
||
* Constructs a {@code Query} object to query entries with the specified field whose value is less than the specified int value.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param field Indicates the field, which must start with $. and cannot contain ^.
|
||
* @param value Indicates the int value.
|
||
* @returns Returns the {@coed Query} object.
|
||
* @throws Throws this exception if input is invalid.
|
||
*/
|
||
lessThan(field: string, value: number|string): Query;
|
||
/**
|
||
* Constructs a {@code Query} object to query entries with the specified field whose value is greater than or equal to the
|
||
* specified int value.
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param field Indicates the field, which must start with $. and cannot contain ^.
|
||
* @param value Indicates the int value.
|
||
* @returns Returns the {@coed Query} object.
|
||
* @throws Throws this exception if input is invalid.
|
||
*/
|
||
greaterThanOrEqualTo(field: string, value: number|string): Query;
|
||
/**
|
||
* Constructs a {@code Query} object to query entries with the specified field whose value is less than or equal to the
|
||
* specified int value.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param field Indicates the field, which must start with $. and cannot contain ^.
|
||
* @param value Indicates the int value.
|
||
* @returns Returns the {@coed Query} object.
|
||
* @throws Throws this exception if input is invalid.
|
||
*/
|
||
lessThanOrEqualTo(field: string, value: number|string): Query;
|
||
/**
|
||
* Constructs a {@code Query} object to query entries with the specified field whose value is null.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param field Indicates the field, which must start with $. and cannot contain ^.
|
||
* @returns Returns the {@coed Query} object.
|
||
* @throws Throws this exception if input is invalid.
|
||
*/
|
||
isNull(field: string): Query;
|
||
/**
|
||
* Constructs a {@code Query} object to query entries with the specified field whose value is within the specified int value list.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param field Indicates the field, which must start with $. and cannot contain ^.
|
||
* @param valueList Indicates the int value list.
|
||
* @returns Returns the {@coed Query} object.
|
||
* @throws Throws this exception if input is invalid.
|
||
*/
|
||
inNumber(field: string, valueList: number[]): Query;
|
||
/**
|
||
* Constructs a {@code Query} object to query entries with the specified field whose value is within the specified string value list.
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
|
||
* @import N/A
|
||
* @param field Indicates the field, which must start with $. and cannot contain ^.
|
||
* @param valueList Indicates the string value list.
|
||
* @returns Returns the {@coed Query} object.
|
||
* @throws Throws this exception if input is invalid.
|
||
*/
|
||
inString(field: string, valueList: string[]): Query;
|
||
/**
|
||
* Constructs a {@code Query} object to query entries with the specified field whose value is not within the specified int value list.
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param field Indicates the field, which must start with $. and cannot contain ^.
|
||
* @param valueList Indicates the int value list.
|
||
* @returns Returns the {@coed Query} object.
|
||
* @throws Throws this exception if input is invalid.
|
||
*/
|
||
notInNumber(field: string, valueList: number[]): Query;
|
||
/**
|
||
* Constructs a {@code Query} object to query entries with the specified field whose value is not within the specified string value list.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param field Indicates the field, which must start with $. and cannot contain ^.
|
||
* @param valueList Indicates the string value list.
|
||
* @returns Returns the {@coed Query} object.
|
||
* @throws Throws this exception if input is invalid.
|
||
*/
|
||
notInString(field: string, valueList: string[]): Query;
|
||
/**
|
||
* Constructs a {@code Query} object to query entries with the specified field whose value is similar to the specified string value.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param field Indicates the field, which must start with $. and cannot contain ^.
|
||
* @param value Indicates the string value.
|
||
* @returns Returns the {@coed Query} object.
|
||
* @throws Throws this exception if input is invalid.
|
||
*/
|
||
like(field: string, value: string): Query;
|
||
/**
|
||
* Constructs a {@code Query} object to query entries with the specified field whose value is not similar to the specified string value.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param field Indicates the field, which must start with $. and cannot contain ^.
|
||
* @param value Indicates the string value.
|
||
* @returns Returns the {@coed Query} object.
|
||
* @throws Throws this exception if input is invalid.
|
||
*/
|
||
unlike(field: string, value: string): Query;
|
||
/**
|
||
* Constructs a {@code Query} object with the and condition.
|
||
*
|
||
* <p>Multiple predicates should be connected using the and or or condition.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @returns Returns the {@coed Query} object.
|
||
*/
|
||
and(): Query;
|
||
/**
|
||
* Constructs a {@code Query} object with the or condition.
|
||
*
|
||
* <p>Multiple predicates should be connected using the and or or condition.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @returns Returns the {@coed Query} object.
|
||
*/
|
||
or(): Query;
|
||
/**
|
||
* Constructs a {@code Query} object to sort the query results in ascending order.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param field Indicates the field, which must start with $. and cannot contain ^.
|
||
* @returns Returns the {@coed Query} object.
|
||
* @throws Throws this exception if input is invalid.
|
||
*/
|
||
orderByAsc(field: string): Query;
|
||
/**
|
||
* Constructs a {@code Query} object to sort the query results in descending order.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param field Indicates the field, which must start with $. and cannot contain ^.
|
||
* @returns Returns the {@coed Query} object.
|
||
* @throws Throws this exception if input is invalid.
|
||
*/
|
||
orderByDesc(field: string): Query;
|
||
/**
|
||
* Constructs a {@code Query} object to specify the number of results and the start position.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param total Indicates the number of results.
|
||
* @param offset Indicates the start position.
|
||
* @returns Returns the {@coed Query} object.
|
||
*/
|
||
limit(total: number, offset: number): Query;
|
||
/**
|
||
* Creates a {@code query} condition with a specified field that is not null.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param field Indicates the specified field.
|
||
* @returns Returns the {@coed Query} object.
|
||
* @throws Throws this exception if input is invalid.
|
||
*/
|
||
isNotNull(field: string): Query;
|
||
/**
|
||
* Creates a query condition group with a left bracket.
|
||
*
|
||
* <p>Multiple query conditions in an {@code Query} object can be grouped. The query conditions in a group can be used as a
|
||
* whole to combine with other query conditions.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @returns Returns the {@coed Query} object.
|
||
*/
|
||
beginGroup(): Query;
|
||
/**
|
||
* Creates a query condition group with a right bracket.
|
||
*
|
||
* <p>Multiple query conditions in an {@code Query} object can be grouped. The query conditions in a group can be used as a
|
||
* whole to combine with other query conditions.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @returns Returns the {@coed Query} object.
|
||
*/
|
||
endGroup(): Query;
|
||
/**
|
||
* Creates a query condition with a specified key prefix.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param prefix Indicates the specified key prefix.
|
||
* @returns Returns the {@coed Query} object.
|
||
* @throws Throws this exception if input is invalid.
|
||
*/
|
||
prefixKey(prefix: string): Query;
|
||
/**
|
||
* Sets a specified index that will be preferentially used for query.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param index Indicates the index to set.
|
||
* @returns Returns the {@coed Query} object.
|
||
* @throws Throws this exception if input is invalid.
|
||
*/
|
||
setSuggestIndex(index: string): Query;
|
||
/**
|
||
* Add device ID key prefix.Used by {@code DeviceKVStore}.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param deviceId Specify device id to query from.
|
||
* @return Returns the {@code Query} object with device ID prefix added.
|
||
* @throw Throws this exception if input is invalid.
|
||
*/
|
||
deviceId(deviceId:string):Query;
|
||
/**
|
||
* Get a String that repreaents this {@code Query}.
|
||
*
|
||
* <p>The String would be parsed to DB query format.
|
||
* The String length should be no longer than 500kb.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @return String representing this {@code Query}.
|
||
*/
|
||
getSqlLike():string;
|
||
}
|
||
|
||
/**
|
||
* Represents a key-value distributed database and provides methods for adding, deleting, modifying, querying,
|
||
* and subscribing to distributed data.
|
||
*
|
||
* <p>You can create distributed databases of different types by {@link KVManager#getKVStore (Options, String)}
|
||
* with input parameter {@code Options}. Distributed database types are defined in {@code KVStoreType},
|
||
* including {@code SingleKVStore}.
|
||
*
|
||
* @since 7
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @version 1
|
||
*/
|
||
interface KVStore {
|
||
/**
|
||
* Writes a key-value pair of the string type into the {@code KvStore} database.
|
||
*
|
||
* <p>If you do not want to synchronize this key-value pair to other devices, set the write option in the local database.
|
||
*
|
||
* @note N/A
|
||
* @since 7
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @param key Indicates the key. The length must be less than {@code MAX_KEY_LENGTH}.
|
||
* Spaces before and after the key will be cleared.
|
||
* @param value Indicates the string value, which must be less than 4 MB as a UTF-8 byte array.
|
||
* @throws Throws this exception if any of the following errors
|
||
* occurs: {@code SERVER_UNAVAILABLE}, {@code IPC_ERROR}, and
|
||
* {@code DB_ERROR}.
|
||
*/
|
||
put(key: string, value: Uint8Array | string | number | boolean, callback: AsyncCallback<void>): void;
|
||
put(key: string, value: Uint8Array | string | number | boolean): Promise<void>;
|
||
|
||
/**
|
||
* Deletes the key-value pair based on a specified key.
|
||
*
|
||
* @note N/A
|
||
* @since 7
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @param key Indicates the key. The length must be less than {@code MAX_KEY_LENGTH}.
|
||
* Spaces before and after the key will be cleared.
|
||
* @throws Throws this exception if any of the following errors
|
||
* occurs: {@code SERVER_UNAVAILABLE}, {@code IPC_ERROR}, and
|
||
* {@code DB_ERROR}, and {@code KEY_NOT_FOUND}.
|
||
*/
|
||
delete(key: string, callback: AsyncCallback<void>): void;
|
||
delete(key: string): Promise<void>;
|
||
|
||
/**
|
||
* Registers a {@code KvStoreObserver} for the database. When data in the distributed database changes, the callback in
|
||
* {@code KvStoreObserver} will be invoked.
|
||
*
|
||
* @note N/A
|
||
* @since 7
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @param type Indicates the subscription type, which is defined in {@code SubscribeType}.
|
||
* @param observer Indicates the observer of data change events in the distributed database.
|
||
* @throws Throws this exception if any of the following errors
|
||
* occurs: {@code SERVER_UNAVAILABLE}, {@code IPC_ERROR},
|
||
* {@code DB_ERROR}, and {@code STORE_ALREADY_SUBSCRIBE}.
|
||
*/
|
||
on(event: 'dataChange', type: SubscribeType, observer: Callback<ChangeNotification>): void;
|
||
|
||
/**
|
||
* Subscribes from the {@code KvStore} database based on the specified subscribeType and {@code KvStoreObserver}.
|
||
*
|
||
* @note N/A
|
||
* @since 7
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @throws Throws this exception if any of the following errors
|
||
* occurs: {@code SERVER_UNAVAILABLE}, {@code IPC_ERROR},
|
||
* {@code DB_ERROR}, and {@code STORE_ALREADY_SUBSCRIBE}.
|
||
*/
|
||
on(event: 'syncComplete', syncCallback: Callback<Array<[string, number]>>): void;
|
||
|
||
/**
|
||
* Unsubscribes from the {@code KvStore} database based on the specified subscribeType and {@code KvStoreObserver}.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @param observer Indicates the data change observer registered by {#subscribe(SubscribeType, KvStoreObserver)}.
|
||
* @throws Throws this exception if any of the following errors
|
||
* occurs: {@code SERVER_UNAVAILABLE}, {@code IPC_ERROR},
|
||
* {@code DB_ERROR}, and {@code STORE_ALREADY_SUBSCRIBE}.
|
||
*/
|
||
off(event:'dataChange', observer?: Callback<ChangeNotification>): void;
|
||
|
||
/**
|
||
* Inserts key-value pairs into the {@code KvStore} database in batches.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @param entries Indicates the key-value pairs to be inserted in batches.
|
||
* @throws Throws this exception if a database error occurs.
|
||
*/
|
||
putBatch(entries: Entry[], callback: AsyncCallback<void>): void;
|
||
putBatch(entries: Entry[]): Promise<void>;
|
||
|
||
/**
|
||
* Deletes key-value pairs in batches from the {@code KvStore} database.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @param keys Indicates the key-value pairs to be deleted in batches.
|
||
* @throws Throws this exception if a database error occurs.
|
||
*/
|
||
deleteBatch(keys: string[], callback: AsyncCallback<void>): void;
|
||
deleteBatch(keys: string[]): Promise<void>;
|
||
|
||
/**
|
||
* Starts a transaction operation in the {@code KvStore} database.
|
||
*
|
||
* <p>After the database transaction is started, you can submit or roll back the operation.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @throws Throws this exception if a database error occurs.
|
||
*/
|
||
startTransaction(callback: AsyncCallback<void>): void;
|
||
startTransaction(): Promise<void>;
|
||
|
||
/**
|
||
* Submits a transaction operation in the {@code KvStore} database.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @param callback
|
||
* @throws Throws this exception if a database error occurs.
|
||
*/
|
||
commit(callback: AsyncCallback<void>): void;
|
||
commit(): Promise<void>;
|
||
|
||
/**
|
||
* Rolls back a transaction operation in the {@code KvStore} database.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @throws Throws this exception if a database error occurs.
|
||
*/
|
||
rollback(callback: AsyncCallback<void>): void;
|
||
rollback(): Promise<void>;
|
||
|
||
/**
|
||
* Sets whether to enable synchronization.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @param enabled Specifies whether to enable synchronization. The value true means to enable
|
||
* synchronization, and false means the opposite.
|
||
* @throws Throws this exception if an internal service error occurs.
|
||
*/
|
||
enableSync(enabled: boolean, callback: AsyncCallback<void>): void;
|
||
enableSync(enabled: boolean): Promise<void>;
|
||
|
||
/**
|
||
* Sets synchronization range labels.
|
||
*
|
||
* <p>The labels determine the devices with which data will be synchronized.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @param localLabels Indicates the synchronization labels of the local device.
|
||
* @param remoteSupportLabels Indicates the labels of the devices with which data will be synchronized.
|
||
* @throws Throws this exception if an internal service error occurs.
|
||
*/
|
||
setSyncRange(localLabels: string[], remoteSupportLabels: string[], callback: AsyncCallback<void>): void;
|
||
setSyncRange(localLabels: string[], remoteSupportLabels: string[]): Promise<void>;
|
||
}
|
||
|
||
/**
|
||
* Provides methods related to single-version distributed databases.
|
||
*
|
||
* <p>To create a {@code SingleKVStore} database,
|
||
* you can use the {@link data.distributed.common.KVManager#getKVStore(Options, String)} method
|
||
* with {@code KVStoreType} set to {@code SINGLE_VERSION} for the input parameter {@code Options}.
|
||
* This database synchronizes data to other databases in time sequence.
|
||
* The {@code SingleKVStore} database does not support
|
||
* synchronous transactions, or data search using snapshots.
|
||
*
|
||
* @since 7
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @version 1
|
||
*/
|
||
interface SingleKVStore extends KVStore {
|
||
/**
|
||
* Obtains the {@code String} value of a specified key.
|
||
*
|
||
* @since 7
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param key Indicates the key of the boolean value to be queried.
|
||
* @throws Throws this exception if any of the following errors occurs:{@code INVALID_ARGUMENT},
|
||
* {@code SERVER_UNAVAILABLE}, {@code IPC_ERROR}, {@code DB_ERROR}, and {@code KEY_NOT_FOUND}.
|
||
*/
|
||
get(key: string, callback: AsyncCallback<Uint8Array | string | boolean | number>): void;
|
||
get(key: string): Promise<Uint8Array | string | boolean | number>;
|
||
|
||
/**
|
||
* Obtains all key-value pairs that match a specified key prefix.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param keyPrefix Indicates the key prefix to match.
|
||
* @returns Returns the list of all key-value pairs that match the specified key prefix.
|
||
* @throws Throws this exception if any of the following errors occurs:{@code INVALID_ARGUMENT},
|
||
* {@code SERVER_UNAVAILABLE}, {@code IPC_ERROR}, and {@code DB_ERROR}.
|
||
*/
|
||
getEntries(keyPrefix: string, callback: AsyncCallback<Entry[]>): void;
|
||
getEntries(keyPrefix: string): Promise<Entry[]>;
|
||
|
||
/**
|
||
* Obtains the list of key-value pairs matching the specified {@code Query} object.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param query Indicates the {@code Query} object.
|
||
* @returns Returns the list of key-value pairs matching the specified {@code Query} object.
|
||
* @throws Throws this exception if any of the following errors occurs: {@code INVALID_ARGUMENT},
|
||
* {@code SERVER_UNAVAILABLE}, {@code IPC_ERROR}, and {@code DB_ERROR}.
|
||
*/
|
||
getEntries(query: Query, callback: AsyncCallback<Entry[]>): void;
|
||
getEntries(query: Query): Promise<Entry[]>;
|
||
|
||
/**
|
||
* Obtains the result sets with a specified prefix from a {@code KvStore} database. The {@code KvStoreResultSet} object can be used to
|
||
* query all key-value pairs that meet the search criteria. Each {@code KvStore} instance can have a maximum of four
|
||
* {@code KvStoreResultSet} objects at the same time. If you have created four objects, calling this method will return a
|
||
* failure. Therefore, you are advised to call the closeResultSet method to close unnecessary {@code KvStoreResultSet} objects
|
||
* in a timely manner.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param keyPrefix Indicates the key prefix to match.
|
||
* @throws Throws this exception if any of the following errors occurs:{@code INVALID_ARGUMENT},
|
||
* {@code SERVER_UNAVAILABLE}, {@code IPC_ERROR}, and {@code DB_ERROR}.
|
||
*/
|
||
getResultSet(keyPrefix: string, callback: AsyncCallback<KvStoreResultSet>): void;
|
||
getResultSet(keyPrefix: string): Promise<KvStoreResultSet>;
|
||
|
||
/**
|
||
* Obtains the {@code KvStoreResultSet} object matching the specified {@code Query} object.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param query Indicates the {@code Query} object.
|
||
* @throws Throws this exception if any of the following errors occurs:{@code INVALID_ARGUMENT},
|
||
* {@code SERVER_UNAVAILABLE}, {@code IPC_ERROR}, and {@code DB_ERROR}.
|
||
*/
|
||
getResultSet(query: Query, callback: AsyncCallback<KvStoreResultSet>): void;
|
||
getResultSet(query: Query): Promise<KvStoreResultSet>;
|
||
|
||
/**
|
||
* Closes a {@code KvStoreResultSet} object returned by getResultSet.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param resultSet Indicates the {@code KvStoreResultSet} object to close.
|
||
* @throws Throws this exception if any of the following errors occurs:{@code INVALID_ARGUMENT},
|
||
* {@code SERVER_UNAVAILABLE}, {@code IPC_ERROR}, and {@code DB_ERROR}.
|
||
*/
|
||
closeResultSet(resultSet: KvStoreResultSet, callback: AsyncCallback<void>): void;
|
||
closeResultSet(resultSet: KvStoreResultSet): Promise<void>;
|
||
|
||
/**
|
||
* Obtains the number of results matching the specified {@code Query} object.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @param query Indicates the {@code Query} object.
|
||
* @returns Returns the number of results matching the specified {@code Query} object.
|
||
* @throws Throws this exception if any of the following errors occurs:{@code INVALID_ARGUMENT},
|
||
* {@code SERVER_UNAVAILABLE}, {@code IPC_ERROR}, and {@code DB_ERROR}.
|
||
*/
|
||
getResultSize(query: Query, callback: AsyncCallback<number>): void;
|
||
getResultSize(query: Query): Promise<number>;
|
||
|
||
/**
|
||
* void removeDeviceData({@link String} deviceId) throws {@link KvStoreException}
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
*/
|
||
removeDeviceData(deviceId: string, callback: AsyncCallback<void>): void;
|
||
removeDeviceData(deviceId: string): Promise<void>;
|
||
|
||
/**
|
||
* Synchronizes the database to the specified devices with the specified delay allowed.
|
||
*
|
||
* @note N/A
|
||
* @since 7
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @param deviceIdList Indicates the list of devices to which to synchronize the database.
|
||
* @param mode Indicates the synchronization mode. The value can be {@code PUSH}, {@code PULL}, or {@code PUSH_PULL}.
|
||
* @param allowedDelayMs Indicates the delay allowed for the synchronization, in milliseconds.
|
||
* @throws Throws this exception if any of the following errors
|
||
* @permission ohos.permission.DISTRIBUTED_DATASYNC
|
||
* occurs: {@code INVALID_ARGUMENT},
|
||
* {@code SERVER_UNAVAILABLE}, {@code IPC_ERROR}, and {@code DB_ERROR}.
|
||
*/
|
||
sync(deviceIdList: string[], mode: SyncMode, allowedDelayMs?: number): void;
|
||
|
||
/**
|
||
* Register Synchronizes SingleKvStore databases callback.
|
||
*
|
||
* <p> Sync result is returned through asynchronous callback.
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @param syncCallback Indicates the callback used to send the synchronization result to the caller.
|
||
* @throws Throws this exception if no {@code SingleKvStore} database is available.
|
||
*/
|
||
on(event: 'syncComplete', syncCallback: Callback<Array<[string, number]>>): void;
|
||
|
||
/**
|
||
* UnRegister Synchronizes SingleKvStore databases callback.
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @throws Throws this exception if no {@code SingleKvStore} database is available.
|
||
*/
|
||
off(event: 'syncComplete', syncCallback?: Callback<Array<[string, number]>>): void;
|
||
|
||
|
||
/**
|
||
* Sets the default delay allowed for database synchronization
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @param defaultAllowedDelayMs Indicates the default delay allowed for the database synchronization, in milliseconds.
|
||
* @throws Throws this exception if any of the following errors occurs:{@code INVALID_ARGUMENT},
|
||
* {@code SERVER_UNAVAILABLE}, {@code IPC_ERROR}, and {@code DB_ERROR}.
|
||
*/
|
||
setSyncParam(defaultAllowedDelayMs: number, callback: AsyncCallback<void>): void;
|
||
setSyncParam(defaultAllowedDelayMs: number): Promise<void>;
|
||
|
||
/**
|
||
* Get the security level of the database.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @returns SecurityLevel {@code SecurityLevel} the security level of the database.
|
||
* @throws Throws this exception if any of the following errors occurs:{@code SERVER_UNAVAILABLE},
|
||
* {@code IPC_ERROR}, and {@code DB_ERROR}.
|
||
*/
|
||
getSecurityLevel(callback: AsyncCallback<SecurityLevel>): void;
|
||
getSecurityLevel(): Promise<SecurityLevel>;
|
||
}
|
||
|
||
/**
|
||
* Manages distributed data by device in a distributed system.
|
||
*
|
||
* <p>To create a {@code DeviceKVStore} database, you can use the {@link data.distributed.common.KVManager.getKvStore(Options, String)}
|
||
* method with {@code KvStoreType} set to {@code DEVICE_COLLABORATION} for the input parameter Options. This database manages distributed
|
||
* data by device, and cannot modify data synchronized from remote devices. When an application writes a key-value pair entry
|
||
* into the database, the system automatically adds the ID of the device running the application to the key.
|
||
*
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
* @import N/A
|
||
*/
|
||
interface DeviceKVStore extends KVStore {
|
||
/**
|
||
* Obtains the {@code String} value matching a specified device ID and key.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
* @param deviceId Indicates the device to be queried.
|
||
* @param key Indicates the key of the value to be queried.
|
||
* @return Returns the value matching the given criteria.
|
||
* @throws Throws this exception if any of the following errors occurs: {@code INVALID_ARGUMENT},
|
||
* {@code SERVER_UNAVAILABLE}, {@code IPC_ERROR}, {@code DB_ERROR}, and {@code KEY_NOT_FOUND}.
|
||
*/
|
||
get(deviceId: string, key: string, callback: AsyncCallback<boolean|string|number|Uint8Array>): void;
|
||
get(deviceId: string, key: string): Promise<boolean|string|number|Uint8Array>;
|
||
|
||
/**
|
||
* Obtains all key-value pairs matching a specified device ID and key prefix.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
* @param deviceId Identifies the device whose data is to be queried.
|
||
* @param keyPrefix Indicates the key prefix to match.
|
||
* @returns Returns the list of all key-value pairs meeting the given criteria.
|
||
* @throws Throws this exception if any of the following errors occurs: {@code INVALID_ARGUMENT},
|
||
* {@code SERVER_UNAVAILABLE}, {@code IPC_ERROR}, {@code DB_ERROR}.
|
||
*/
|
||
getEntries(deviceId: string, keyPrefix: string, callback: AsyncCallback<Entry[]>): void;
|
||
getEntries(deviceId: string, keyPrefix: string): Promise<Entry[]>;
|
||
|
||
/**
|
||
* Obtains the list of key-value pairs matching the specified {@code Query} object.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
* @param query Indicates the {@code Query} object.
|
||
* @returns Returns the list of key-value pairs matching the specified {@code Query} object.
|
||
* @throws Throws this exception if any of the following errors occurs: {@code INVALID_ARGUMENT},
|
||
* {@code SERVER_UNAVAILABLE}, {@code IPC_ERROR}, {@code DB_ERROR}.
|
||
*/
|
||
getEntries(query: Query, callback: AsyncCallback<Entry[]>): void;
|
||
getEntries(query: Query): Promise<Entry[]>;
|
||
|
||
/**
|
||
* Obtains the list of key-value pairs matching a specified device ID and {@code Query} object.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
* @param deviceId Indicates the ID of the device to which the key-value pairs belong.
|
||
* @param query Indicates the {@code Query} object.
|
||
* @returns Returns the list of key-value pairs matching the specified {@code Query} object.
|
||
*/
|
||
getEntries(deviceId: string, query: Query, callback: AsyncCallback<Entry[]>): void;
|
||
getEntries(deviceId: string, query: Query): Promise<Entry[]>;
|
||
|
||
/**
|
||
* Obtains the {@code KvStoreResultSet} object matching the specified device ID and key prefix.
|
||
*
|
||
* <p>The {@code KvStoreResultSet} object can be used to query all key-value pairs that meet the search criteria. Each {@code KvStore}
|
||
* instance can have a maximum of four {@code KvStoreResultSet} objects at the same time. If you have created four objects,
|
||
* calling this method will return a failure. Therefore, you are advised to call the closeResultSet method to close unnecessary
|
||
* {@code KvStoreResultSet} objects in a timely manner.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
* @param deviceId Identifies the device whose data is to be queried.
|
||
* @param keyPrefix Indicates the key prefix to match.
|
||
* @returns Returns the {@code KvStoreResultSet} objects.
|
||
* @throws Throws this exception if any of the following errors occurs: {@code INVALID_ARGUMENT},
|
||
* {@code SERVER_UNAVAILABLE}, {@code IPC_ERROR}, {@code DB_ERROR}.
|
||
*/
|
||
getResultSet(deviceId: string, keyPrefix: string, callback: AsyncCallback<KvStoreResultSet>): void;
|
||
getResultSet(deviceId: string, keyPrefix: string): Promise<KvStoreResultSet>;
|
||
|
||
/**
|
||
* Obtains the {@code KvStoreResultSet} object matching the specified {@code Query} object.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
* @param query Indicates the {@code Query} object.
|
||
* @returns Returns the {@code KvStoreResultSet} object matching the specified {@code Query} object.
|
||
* @throws Throws this exception if any of the following errors occurs: {@code INVALID_ARGUMENT},
|
||
* {@code SERVER_UNAVAILABLE}, {@code IPC_ERROR}, {@code DB_ERROR}.
|
||
*/
|
||
getResultSet(query: Query, callback: AsyncCallback<KvStoreResultSet>): void;
|
||
getResultSet(query: Query): Promise<KvStoreResultSet>;
|
||
|
||
/**
|
||
* Obtains the {@code KvStoreResultSet} object matching a specified device ID and {@code Query} object.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
* @param deviceId Indicates the ID of the device to which the {@code KvStoreResultSet} object belongs.
|
||
* @param query Indicates the {@code Query} object.
|
||
* @returns Returns the {@code KvStoreResultSet} object matching the specified {@code Query} object.
|
||
*/
|
||
getResultSet(deviceId: string, query: Query, callback: AsyncCallback<KvStoreResultSet>): void;
|
||
getResultSet(deviceId: string, query: Query): Promise<KvStoreResultSet>;
|
||
|
||
/**
|
||
* Closes a {@code KvStoreResultSet} object returned by getResultSet.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
* @param resultSet Indicates the {@code KvStoreResultSet} object to close.
|
||
* @throws Throws this exception if any of the following errors occurs: {@code INVALID_ARGUMENT},
|
||
* {@code SERVER_UNAVAILABLE}, {@code IPC_ERROR}, {@code DB_ERROR}.
|
||
*/
|
||
closeResultSet(resultSet: KvStoreResultSet, callback: AsyncCallback<void>): void;
|
||
closeResultSet(resultSet: KvStoreResultSet): Promise<void>;
|
||
|
||
/**
|
||
* Obtains the number of results matching the specified {@code Query} object.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
* @param query Indicates the {@code Query} object.
|
||
* @returns Returns the number of results matching the specified {@code Query} object.
|
||
* @throws Throws this exception if any of the following errors occurs: {@code INVALID_ARGUMENT},
|
||
* {@code SERVER_UNAVAILABLE}, {@code IPC_ERROR}, {@code DB_ERROR}.
|
||
*/
|
||
getResultSize(query: Query, callback: AsyncCallback<number>): void;
|
||
getResultSize(query: Query): Promise<number>;
|
||
|
||
/**
|
||
* Obtains the number of results matching a specified device ID and {@code Query} object.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
* @param deviceId Indicates the ID of the device to which the results belong.
|
||
* @param query Indicates the {@code Query} object.
|
||
* @returns Returns the number of results matching the specified {@code Query} object.
|
||
*/
|
||
getResultSize(deviceId: string, query: Query, callback: AsyncCallback<number>): void;
|
||
getResultSize(deviceId: string, query: Query): Promise<number>;
|
||
|
||
/**
|
||
* Removes data of a specified device from the current database. This method is used to remove only the data
|
||
* synchronized from remote devices. This operation does not synchronize data to other databases or affect
|
||
* subsequent data synchronization.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
* @param deviceId Identifies the device whose data is to be removed. The value cannot be the current device ID.
|
||
* @throws Throws this exception if any of the following errors occurs: {@code INVALID_ARGUMENT},
|
||
* {@code SERVER_UNAVAILABLE}, {@code IPC_ERROR}, {@code DB_ERROR}.
|
||
*/
|
||
removeDeviceData(deviceId: string, callback: AsyncCallback<void>): void;
|
||
removeDeviceData(deviceId: string): Promise<void>;
|
||
|
||
/**
|
||
* Synchronizes {@code DeviceKVStore} databases.
|
||
*
|
||
* <p>This method returns immediately and sync result will be returned through asynchronous callback.
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @param deviceIdList Indicates the list of IDs of devices whose
|
||
* {@code DeviceKVStore} databases are to be synchronized.
|
||
* @param mode Indicates the synchronization mode, {@code PUSH}, {@code PULL}, or
|
||
* {@code PUSH_PULL}.
|
||
* @permission ohos.permission.DISTRIBUTED_DATASYNC
|
||
* @throws Throws this exception if no DeviceKVStore database is available.
|
||
*/
|
||
sync(deviceIdList: string[], mode: SyncMode, allowedDelayMs?: number): void;
|
||
|
||
/**
|
||
* Register Synchronizes DeviceKVStore databases callback.
|
||
*
|
||
* <p>Sync result is returned through asynchronous callback.
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @param syncCallback Indicates the callback used to send the synchronization result to the caller.
|
||
* @throws Throws this exception if no DeviceKVStore database is available.
|
||
*/
|
||
on(event: 'syncComplete', syncCallback: Callback<Array<[string, number]>>): void;
|
||
|
||
/**
|
||
* UnRegister Synchronizes DeviceKVStore databases callback.
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @throws Throws this exception if no DeviceKVStore database is available.
|
||
*/
|
||
off(event: 'syncComplete', syncCallback?: Callback<Array<[string, number]>>): void;
|
||
}
|
||
|
||
/**
|
||
* Creates a {@link KVManager} instance based on the configuration information.
|
||
*
|
||
* <p>You must pass {@link KVManagerConfig} to provide configuration information
|
||
* for creating the {@link KVManager} instance.
|
||
*
|
||
* @note N/A
|
||
* @since 7
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @param config Indicates the {@link KVStore} configuration information,
|
||
* including the user information and package name.
|
||
* @return Returns the {@code KVManager} instance.
|
||
* @throws Throws exception if input is invalid.
|
||
*/
|
||
function createKVManager(config: KVManagerConfig, callback: AsyncCallback<KVManager>): void;
|
||
function createKVManager(config: KVManagerConfig): Promise<KVManager>;
|
||
|
||
/**
|
||
* Provides interfaces to manage a {@code KVStore} database, including obtaining, closing, and deleting the {@code KVStore}.
|
||
*
|
||
* @since 7
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @import N/A
|
||
* @version 1
|
||
*/
|
||
interface KVManager {
|
||
/**
|
||
* Creates and obtains a {@code KVStore} database by specifying {@code Options} and {@code storeId}.
|
||
*
|
||
* @note N/A
|
||
* @since 7
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @param options Indicates the options used for creating and obtaining the {@code KVStore} database,
|
||
* including {@code isCreateIfMissing}, {@code isEncrypt}, and {@code KVStoreType}.
|
||
* @param storeId Identifies the {@code KVStore} database.
|
||
* The value of this parameter must be unique for the same application,
|
||
* and different applications can share the same value.
|
||
* @return Returns a {@code KVStore}, or {@code SingleKVStore}.
|
||
*/
|
||
getKVStore<T extends KVStore>(storeId: string, options: Options): Promise<T>;
|
||
getKVStore<T extends KVStore>(storeId: string, options: Options, callback: AsyncCallback<T>): void;
|
||
|
||
/**
|
||
* Closes the {@code KvStore} database.
|
||
*
|
||
* <p>Warning: This method is not thread-safe. If you call this method to stop a KvStore database that is running, your
|
||
* thread may crash.
|
||
*
|
||
* <p>The {@code KvStore} database to close must be an object created by using the {@code getKvStore} method. Before using this
|
||
* method, release the resources created for the database, for example, {@code KvStoreResultSet} for {@code SingleKvStore},
|
||
* otherwise closing the database will fail. If you are attempting to close a database that is already closed, an error
|
||
* will be returned.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @param kvStore Indicates the {@code KvStore} database to close.
|
||
* @throws Throws this exception if any of the following errors
|
||
* occurs:{@code INVALID_ARGUMENT}, {@code ERVER_UNAVAILABLE},
|
||
* {@code STORE_NOT_OPEN}, {@code STORE_NOT_FOUND}, {@code DB_ERROR},
|
||
* {@code PERMISSION_DENIED}, and {@code IPC_ERROR}.
|
||
*/
|
||
closeKVStore(appId: string, storeId: string, kvStore: KVStore, callback: AsyncCallback<void>): void;
|
||
closeKVStore(appId: string, storeId: string, kvStore: KVStore): Promise<void>;
|
||
|
||
/**
|
||
* Deletes the {@code KvStore} database identified by storeId.
|
||
*
|
||
* <p>Before using this method, close all {@code KvStore} instances in use that are identified by the same storeId.
|
||
*
|
||
* <p>You can use this method to delete a {@code KvStore} database not in use. After the database is deleted, all its data will be
|
||
* lost.
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @param storeId Identifies the {@code KvStore} database to delete.
|
||
* @throws Throws this exception if any of the following errors
|
||
* occurs: {@code INVALID_ARGUMENT},
|
||
* {@code SERVER_UNAVAILABLE}, {@code STORE_NOT_FOUND},
|
||
* {@code DB_ERROR}, {@code PERMISSION_DENIED}, and {@code IPC_ERROR}.
|
||
*/
|
||
deleteKVStore(appId: string, storeId: string, callback: AsyncCallback<void>): void;
|
||
deleteKVStore(appId: string, storeId: string): Promise<void>;
|
||
|
||
/**
|
||
* Obtains the storeId of all {@code KvStore} databases that are created by using the {@code getKvStore} method and not deleted by
|
||
* calling the {@code deleteKvStore} method.
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.Core
|
||
* @returns Returns the storeId of all created {@code KvStore} databases.
|
||
* @throws Throws this exception if any of the following errors
|
||
* occurs: {@code SERVER_UNAVAILABLE}, {@code DB_ERROR},
|
||
* {@code PERMISSION_DENIED}, and {@code IPC_ERROR}.
|
||
*/
|
||
getAllKVStoreId(appId: string, callback: AsyncCallback<string[]>): void;
|
||
getAllKVStoreId(appId: string): Promise<string[]>;
|
||
|
||
/**
|
||
* register DeviceChangeCallback to get notification when device's status changed
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
* @param deathCallback device change callback {@code DeviceChangeCallback}
|
||
* @throws exception maybe occurs.
|
||
*/
|
||
on(event: 'distributedDataServiceDie', deathCallback: Callback<void>): void;
|
||
|
||
/**
|
||
* unRegister DeviceChangeCallback and can not receive notification
|
||
*
|
||
* @note N/A
|
||
* @since 8
|
||
* @syscap SystemCapability.DistributedDataManager.KVStore.DistributedKVStore
|
||
* @param deathCallback device change callback {@code DeviceChangeCallback} which has been registered.
|
||
* @throws exception maybe occurs.
|
||
*/
|
||
off(event: 'distributedDataServiceDie', deathCallback?: Callback<void>): void;
|
||
}
|
||
}
|
||
|
||
export default distributedData; |