Mac Developer Library

Developer

CoreData Framework Reference NSManagedObjectContext Class Reference

Document Revision History

This table describes the changes to NSManagedObjectContext Class Reference.

Date

Notes

2014-09-17

Noted that setter methods on queue-based contexts are thread safe. Also noted that a context should be checked for changes before saving.

2014-02-11

Noted that setter methods on queue-based contexts are thread safe.

2013-08-08

Added discussion of nested contexts and concurrency features introduced in OS X v10.8 and iOS 6.

2011-10-12

Updated for iOS v5.0.

2011-02-17

Updated for OS X v10.7.

2010-12-30

Noted error return value for countForFetchRequest:error:.

2010-11-15

Augmented discussion of concurrency.

2010-04-21

Corrected description of NSManagedObjectContextWillSaveNotification (there is no user info dictionary).

2009-10-06

Corrected descriptions of save notifications.

2009-08-12

Corrected definition of stalenessInterval.

2009-05-04

Enhanced discussion of undo manager.

2009-02-25

Updated for iOS 3.0.

2007-07-19

Updated for OS X v10.5.

2007-03-06

Clarified description of NSManagedObjectContextObjects­DidChangeNotification.

2007-01-08

Noted that hasChanges is not KVO-compliant, and enhanced discussion of setPersistentStoreCoordinator:.

2006-11-07

Clarified effect of refreshObject:mergeChanges:.

2006-05-23

First publication of this content as a separate document.