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[news.eclipse.modeling.gmf] Re: extension point documentProviders 
Peter Lang wrote:

Hello Alex,

You can comment out generated ???DiagramEditor.getDocumentProvider() method so super implementation will be used (calling document provider registry).
I tried it, but getDocumentProvider does not get called.
getDocumentProvider is not used, setDocumentProvider is called by DiagramDocumentEditor.updateDocumentProvider. 

So I changed setDocumentProvider to call
  setDocumentProvider(super.getDocumentProvider(input));
in my XxxDiagramEditor.

In DocumentProviderRegistry.getDocumentProvider editorInput.getAdapter(IFile.class) returns null, so file-extensions are not used to find documentProvider.

Reason for this seems to be that URI.isPlatformResource() returns false, since segments[0] is the first directory of my path, and not "resource".

Any idea what I could do? 

Thanks,
Peter