Instance Method

tryLock

Attempts to acquire a lock.

Declaration

- (BOOL)tryLock;

Return Value

YES if successful, otherwise NO.

Discussion

Returns immediately—contrast lock which blocks.

See Also

Deprecated

NSPersistentStoreDidImportUbiquitousContentChangesNotification

Posted after records are imported from the ubiquitous content store.

Deprecated
NSPersistentStoreUbiquitousTransitionType

These constants are used as the value corresponding to the NSPersistentStoreUbiquitousTransitionTypeKey in the user info dictionary of NSPersistentStoreCoordinatorStoresWillChangeNotification and NSPersistentStoreCoordinatorStoresDidChangeNotification notifications to identify the type of event leading to a change.

Deprecated
+ removeUbiquitousContentAndPersistentStoreAtURL:options:error:

Deletes all ubiquitous content for all peers for the persistent store at a given URL and also delete the local store file.

Deprecated
+ setMetadata:forPersistentStoreOfType:URL:error:

Sets the metadata for a given store.

Deprecated
+ metadataForPersistentStoreOfType:URL:error:

Returns a dictionary containing the metadata stored in the persistent store at a given URL.

Deprecated
- unlock

Relinquishes a previously acquired lock.

Deprecated
- lock

Attempts to acquire a lock.

Deprecated

Beta Software

This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.

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