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Multi document: design question

Hi List,

I've just started with a simple database application, to learn Cocoa more deeply. (I did already some simple Cocoa stuff).

I want to edit documents. So for the model I thought about document manager (represented through a main window), that can create new and open existing documents (document windows). These documents are "generic documents" referenced through ID and composed on the fly from database.

I read about and would like to use multi document support, because of the all advantages. But as I understood, I have to subclass NSDocumentController, since the default one is designed to work with files only?

So here are my questions:

What are the issues I have to pay attention to?
Are there any examples, how to subclass a NSDocumentController?
Are there any examples, that shows NSDocumentController subclass working with "generic" documents?
Or would it be simpler to write my own document manager?


Best regards,
Alex
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