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Cocoa® Programming Developer’s Handbook, Second Edition by David Chisnall

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Chapter 10. Core Data

Core Data is a new API in 10.4 that provides a persistent data model and a data-object mapping layer. It is based (loosely) on the older Enterprise Object Framework, which provided an object-relations mapping for WebObjects.

Using Core Data, a lot of the code we wrote in the last chapter becomes obsolete. ...

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