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2014/10/15 ¤U¤È 10:04:30
iphone Programming Glossary: backgroundmocCore Data could not fullfil fault for object after obtainPermanantIDs http://stackoverflow.com/questions/11321717/core-data-could-not-fullfil-fault-for-object-after-obtainpermanantids after obtainPermanantIDs I'm getting data from a webserver processing it on a child private background context called backgroundMOC . It is a child of a mainMOC which is linked to the main UI so saving on the backgroundMOC triggers UI changes. The mainMOC.. background context called backgroundMOC . It is a child of a mainMOC which is linked to the main UI so saving on the backgroundMOC triggers UI changes. The mainMOC is a child of a masterMOC which is a private background queue tied to the persistent store.. to the persistent store so saving on the master saves to disk. What I do now is receive data create new objects on backgroundMOC then save backgroundMOC so that the UI updates save mainMOC so that I can almost save to disk and save masterMOC so that..
NSManagedObjectContext performBlockAndWait: doesn't execute on background thread? http://stackoverflow.com/questions/11831946/nsmanagedobjectcontext-performblockandwait-doesnt-execute-on-background-thread doesn't execute on background thread I have an NSManagedObjectContext declared like so NSManagedObjectContext backgroundMOC if backgroundMOC nil return backgroundMOC backgroundMOC NSManagedObjectContext alloc initWithConcurrencyType NSPrivateQueueConcurrencyType.. on background thread I have an NSManagedObjectContext declared like so NSManagedObjectContext backgroundMOC if backgroundMOC nil return backgroundMOC backgroundMOC NSManagedObjectContext alloc initWithConcurrencyType NSPrivateQueueConcurrencyType.. I have an NSManagedObjectContext declared like so NSManagedObjectContext backgroundMOC if backgroundMOC nil return backgroundMOC backgroundMOC NSManagedObjectContext alloc initWithConcurrencyType NSPrivateQueueConcurrencyType return backgroundMOC Notice..
Core Data's NSPrivateQueueConcurrencyType and sharing objects between threads http://stackoverflow.com/questions/8637921/core-datas-nsprivatequeueconcurrencytype-and-sharing-objects-between-threads NSManagedObjectContext alloc initWithConcurrencyType NSMainQueueConcurrencyType autorelease NSManagedObjectContext backgroundMOC NSManagedObjectContext alloc initWithConcurrencyType NSPrivateQueueConcurrencyType autorelease Now this can safely be called.. alloc initWithConcurrencyType NSPrivateQueueConcurrencyType autorelease Now this can safely be called from ANY thread backgroundMOC performBlock ^ NSArray results backgroundMOC executeFetchRequest request error nil for NSManagedObject mo in results NSManagedObjectID.. autorelease Now this can safely be called from ANY thread backgroundMOC performBlock ^ NSArray results backgroundMOC executeFetchRequest request error nil for NSManagedObject mo in results NSManagedObjectID moid mo objectID mainMOC performBlock..
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