Instance Method

mergeChangesFromContextDidSaveNotification:

Merges the changes specified in a given notification.

Declaration

- (void)mergeChangesFromContextDidSaveNotification:(NSNotification *)notification;

Parameters

notification

An instance of an NSManagedObjectContextDidSaveNotification notification posted by another context.

Discussion

This method refreshes any objects which have been updated in the other context, faults in any newly-inserted objects, and invokes deleteObject:: on those which have been deleted.

You can pass a NSManagedObjectContextDidSaveNotification notification posted by a managed object context on another thread, however you must not use the managed objects in the user info dictionary directly. For more details, see Concurrency with Core Data.

See Also

Managing Concurrency

automaticallyMergesChangesFromParent

A Boolean value that indicates whether the context automatically merges changes saved to its persistent store coordinator or parent context.

concurrencyType

The concurrency type for the context.

queryGenerationToken

Returns the token associated with the query generation currently in use by this context.

mergePolicy

The merge policy of the context.

transactionAuthor

The author for the context that is used as an identifier in persistent history transactions.

- setQueryGenerationFromToken:error:

Sets the query generation this context should use.

+ mergeChangesFromRemoteContextSave:intoContexts:

Handles changes from other processes or from a serialized state.

NSManagedObjectContextConcurrencyType

Constants to indicate the concurrency pattern with which a context will be used.

NSManagedObjectContextQueryGenerationKey

Constant used to reference the query generation token.