Is there any class for weak References on iPhoneOS ==> none

My APP received a big data that was used about twice times. So, I think It`ll cause a memory problem.

In this case I use the WeakReference class on java. But, I couldn`t find any class for weak references like java.

Is there any class for weak refereces on 开发者_JS百科iPhoneOS?

Is this the only way in this case, that using didReceiveMemoryWarning method and release code.

Thx.

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iPhoneOS SDK does not support garbage collection so classes that implement weak referencing are not really needed. What I would suggest is that you run your app through Instruments (Choose Run->Run WIth Performance Tools->Allocations from Xcode 3.2.3. This will help you understand the memory usage of your app and detect possible leaks.

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I think you should use persistent storage, if you want to play with big data because memory will not allow you beyond its limit.