Constants to indicate the concurrency pattern with which a context will be used.
SDKs
Framework
typedef enum NSManagedObjectContextConcurrencyType : NSUInteger {
...
} NSManagedObjectContextConcurrencyType;
See also init and Concurrency with Core Data.
NSConfinementSpecifies that the context will use the thread confinement pattern.
NSPrivateSpecifies that the context will be associated with a private dispatch queue.
NSMainSpecifies that the context will be associated with the main queue.
automaticallyA Boolean value that indicates whether the context automatically merges changes saved to its persistent store coordinator or parent context.
concurrencyThe concurrency type for the context.
queryReturns the token associated with the query generation currently in use by this context.
mergeThe merge policy of the context.
transactionThe author for the context that is used as an identifier in persistent history transactions.
- mergeMerges the changes specified in a given notification.
- setSets the query generation this context should use.
+ mergeHandles changes from other processes or from a serialized state.
NSManagedConstant used to reference the query generation token.