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

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

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