GWT 2.1 RequestFactory multi level relation population

I'm using GWT 2.1 开发者_如何学Pythonalong with its RequestFactory. I understand, using the with() methode on a request for an object A, enables me to populate relations so that I can access B1 and B2 from A. Is it possible to populate relations beyond level 1 so that I can access C1 and C2 from A via B1, B2?

        A
        |
    ---------
    |       |
    B1      B2
    |       |
    C1      C2

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The "dot notation" does the trick. Using ... with("B1", "B1.C1") ... gives access to C1.

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If you're using the GWT Editor framework, you can generate the argument for the with() call by using RequsetFactoryEditorDelegate.getPaths()