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Memory space in a shared, private framework
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Memory space in a shared, private framework


  • Subject: Memory space in a shared, private framework
  • From: Philip Dow <email@hidden>
  • Date: Fri, 11 May 2007 13:57:55 +0200

Let me see if I can clarify this the right way. Everything is being done with Cocoa/Obj-C. I'd like to create a private framework that is responsible for managing the data store of an application. Other applications would be able to link against this framework and use it to access the same data store.

My question concerns the "memory space" of the framework (is there a better name for this?). Does the framework occupy the same memory in both applications? For example, if one application added or modified an object, would the other application be aware of this change? Or does the framework exist independently in the two applications so that a change from one would not be noticed in the other?

The best example I can think of is the AddressBook framework. Many applications link against and use this framework. When one application changes an AB record via the framework, other applications immediately become aware of those changes, not only in the data model but also in the interface thanks to the AddressBookUI and bindings. Is this the de facto case with a shared framework or is the AddressBook framework doing something special here?

-Phil
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