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Cocoa Programming for Mac OS X, Third Edition by Aaron Hillegass

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Chapter 11. Basic Core Data

At this point, you’ve implemented an application that keeps track of an array of objects, takes care of undo, and handles saving and loading from a file. As you can imagine, there are an awful lot of applications like the one you just wrote.

Apple decided to make this type of application extremely easy to write:

  • NSArrayController will hold on to an array of objects.

  • Bindings will eliminate much of the glue code that would be necessary to keep the model objects in sync with the views.

  • NSManagedObjectContext will observe the instance variables of your data objects, take care of undo for you, and take care of loading and saving the data.

So, the punchline is: Using Core Data and bindings, the RaiseMan application that you have ...

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