Instance Method

detectConflictsForObject:

Marks an object for conflict detection.

Declaration

- (void)detectConflictsForObject:(NSManagedObject *)object;

Parameters

object

A managed object.

Discussion

If on the next invocation of save: object has been modified in its persistent store, the save fails. This allows optimistic locking for unchanged objects. Conflict detection is always performed on changed or deleted objects.

See Also

Managing Managed Objects

shouldDeleteInaccessibleFaults

A Boolean value that indicates the behavior of inaccessible faults.

insertedObjects

The set of objects that have been inserted into the context but not yet saved in a persistent store.

updatedObjects

The set of objects registered with the context that have uncommitted changes.

deletedObjects

The set of objects that will be removed from their persistent store during the next save operation.

- insertObject:

Registers an object to be inserted in the context’s persistent store the next time changes are saved.

- deleteObject:

Specifies an object that should be removed from its persistent store when changes are committed.

- assignObject:toPersistentStore:

Specifies the store in which a newly inserted object will be saved.

- obtainPermanentIDsForObjects:error:

Converts to permanent IDs the object IDs of the objects in a given array.

- refreshObject:mergeChanges:

Updates the persistent properties of a managed object to use the latest values from the persistent store.

- processPendingChanges

Forces the context to process changes to the object graph.

- observeValueForKeyPath:ofObject:change:context:

Allows a context that has registered as an observer of a value to be notified of a change to that value.