darling-cocotron/CoreData/NSAtomicStore.m

#import "NSManagedObject-Private.h"
#import "NSManagedObjectID-Private.h"
#import <CoreData/NSAtomicStore.h>
#import <CoreData/NSAtomicStoreCacheNode.h>
#import <CoreData/NSManagedObject.h>
#import <Foundation/NSMutableDictionary.h>
#import <Foundation/NSMutableSet.h>
#import <Foundation/NSRaise.h>

@implementation NSAtomicStore

- initWithPersistentStoreCoordinator:
          (NSPersistentStoreCoordinator *) coordinator
                   configurationName: (NSString *) configurationName
                                 URL: (NSURL *) url
                             options: (NSDictionary *) options
{
    if ([super initWithPersistentStoreCoordinator: coordinator
                                configurationName: configurationName
                                              URL: url
                                          options: options] == nil)
        return nil;

    _metadata = [[NSDictionary alloc] init];
    _cacheNodes = [[NSMutableSet alloc] init];
    _objectIDToCacheNode = [[NSMutableDictionary alloc] init];
    _objectIDTable = [[NSMutableDictionary alloc] init];
    return self;
}

- (void) dealloc {
    [_metadata release];
    [_cacheNodes release];
    [_objectIDToCacheNode release];
    [_objectIDTable release];
    [super dealloc];
}

- (NSSet *) cacheNodes {
    return _cacheNodes;
}

- (NSDictionary *) metadata {
    return _metadata;
}

- (void) setMetadata: (NSDictionary *) value {
    value = [value copy];
    [_metadata release];
    _metadata = value;
}

- (void) addCacheNodes: (NSSet *) values {
    for (NSAtomicStoreCacheNode *node in values) {

        [_objectIDToCacheNode setObject: node forKey: [node objectID]];
    }
    [_cacheNodes unionSet: values];
}

- (NSAtomicStoreCacheNode *) cacheNodeForObjectID:
        (NSManagedObjectID *) objectID
{
    NSAtomicStoreCacheNode *result =
            [_objectIDToCacheNode objectForKey: objectID];

    return result;
}

- (NSAtomicStoreCacheNode *) newCacheNodeForManagedObject:
        (NSManagedObject *) managedObject
{
    return [[NSAtomicStoreCacheNode alloc]
            initWithObjectID: [managedObject objectID]];
}

- (NSManagedObjectID *) objectIDForEntity: (NSEntityDescription *) entity
                          referenceObject: referenceObject
{
    NSMutableDictionary *refTable =
            [_objectIDTable objectForKey: [entity name]];

    if (refTable == nil) {
        refTable = [NSMutableDictionary dictionary];
        [_objectIDTable setObject: refTable forKey: [entity name]];
    }

    NSManagedObjectID *result = [refTable objectForKey: referenceObject];

    if (result == nil) {
        result = [[[NSManagedObjectID alloc] initWithEntity: entity]
                autorelease];

        [result setReferenceObject: referenceObject];
        [result setStoreIdentifier: [self identifier]];
        [result setPersistentStore: self];

        [refTable setObject: result forKey: referenceObject];
    }

    return result;
}

- (void) _uniqueObjectID: (NSManagedObjectID *) objectID {
    NSEntityDescription *entity = [objectID entity];
    NSMutableDictionary *refTable =
            [_objectIDTable objectForKey: [entity name]];

    if (refTable == nil) {
        refTable = [NSMutableDictionary dictionary];
        [_objectIDTable setObject: refTable forKey: [entity name]];
    }

    id referenceObject = [objectID referenceObject];

    [refTable setObject: objectID forKey: referenceObject];
}

- referenceObjectForObjectID: (NSManagedObjectID *) objectID {
    return [objectID referenceObject];
}

- (void) willRemoveCacheNodes: (NSSet *) cacheNodes {
}

- newReferenceObjectForManagedObject: (NSManagedObject *) managedObject {
    NSInvalidAbstractInvocation();
    return 0;
}

- (void) updateCacheNode: (NSAtomicStoreCacheNode *) node
        fromManagedObject: (NSManagedObject *) managedObject
{
    NSInvalidAbstractInvocation();
}

- (BOOL) load: (NSError **) error {
    NSInvalidAbstractInvocation();
    return 0;
}

- (BOOL) save: (NSError **) error {
    NSInvalidAbstractInvocation();
    return 0;
}

@end