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Re: Object Identity Tests in Core Data

Subject: Re: Object Identity Tests in Core Data
From: mmalcolm crawford <email@hidden>
Date: Wed, 31 Aug 2005 00:34:35 -0700
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On Aug 31, 2005, at 12:28 AM, Niko Matsakis wrote:

As far as I can tell, the predicate language doesn't really work with pointers as much as strings and scalar fields.
I'm curious, what gives you this impression?
I guess it's that I didn't find documentation on what kinds of types are available in predicates.

<http://developer.apple.com/documentation/Cocoa/Conceptual/CoreData/ Articles/cdFetching.html#//apple_ref/doc/uid/TP40002484/ DontLinkElementID_18>

I'm still not 100% convinced that there is only one NSManagedObject instance for each object in my Core Data database; it seems like it should work that way, but I didn't really see that in the documentation.

<http://developer.apple.com/documentation/Cocoa/Conceptual/CoreData/ Articles/cdFaultUniquing.html#//apple_ref/doc/uid/TP30001202-185502- TPXREF148>

mmalc


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Follow-Ups:
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References:
	>Object Identity Tests in Core Data (From: Niko Matsakis <email@hidden>)
	>Re: Object Identity Tests in Core Data (From: Chris Hanson <email@hidden>)
	>Re: Object Identity Tests in Core Data (From: Niko Matsakis <email@hidden>)

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