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Re: Core Data: How to Observe "dirty" State?

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Re: Core Data: How to Observe "dirty" State?

Subject: Re: Core Data: How to Observe "dirty" State?
From: "I. Savant" <email@hidden>
Date: Sun, 11 May 2008 09:04:57 -0400

I would also expect that you can observe your NSManagedObjectContext's "hasChanges" property using KVO.

No, you can not: http://developer.apple.com/documentation/Cocoa/Reference/CoreDataFramework/Classes/NSManagedObjectContext_Class/Reference/Reference.html#/ /apple_ref/doc/uid/TP30001182-BAJBHIDI

Not everything is observable because not everything is compliant. There are a number of reasons why it might not be feasible or why it might be woefully inefficient to use KVO.

I take it, Chris, you really like the KVO mechanism. I do to. ;-) But you can't fit everything into it, nor should you where performance is more important than programmer convenience.

--
I.S.

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Re: Core Data: How to Observe "dirty" State?
From: "Hamish Allan" <email@hidden>


References:  
  >Core Data: How to Observe "dirty" State? (From: Keary Suska <email@hidden>)
  >Re: Core Data: How to Observe "dirty" State? (From: Dave Fernandes <email@hidden>)
  >Re: Core Data: How to Observe "dirty" State? (From: Chris Hanson <email@hidden>)




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