How about (not tested, might not work, I've had a few issues with generics and RequestFactory):
interface Foo<B extends Bar> { get/setSomeProperty(String); get/setBar(B); } interface Bar { get/setSomeProperty(int); } interface FooProxy extends Foo<BarProxy>, EntityProxy { } interface BarProxy extends Bar, ValueProxy { } class FooImpl implements Foo<BarImpl> { ... } class BarImpl implements Bar { ... } and have all your "helper methods" work with the Foo and Bar interfaces? (and factories if you have to create instances) -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/kB_QoBg3dNwJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.