[hibernate-dev] 5.0 metamodel binding

Gail, I am working on some changes to metamodel and have come across some things that I need your help deciphering in terms of things you do Binder. The background is this... At the moment all of metamodel binding completely mis-handles MappedSuperclasses. The annotation source processor handles them somewhat, but in a very unusable way; it basically flattens all MappedSuperclass info into the nearest Entity. This is because the source package does not at all support the definition of MappedSuperclass. And then of course bindings do nothing with it, since it is not accounted for in source. To add this support I plan on the following changes: 1) Move lots of the information currently defined by RootEntitySource into EntityHierarchy. The identifier, version, etc is actually a function of the hierarchy as a whole, so conceptually it makes more sense there anyway. And that mirrors the way we modeled it in the binding spi. 2) Generalize the EntityHierarchy tree to allow mixing Entity and MappedSuperclass sources. A MappedSuperclass source actually needs to be defined. 3) Model MappedSuperclass in the binding spi as well. Which leads to my confusion. I have no idea how to account for such changes in the Binder code and its calls through various executors and contexts. I really need some pointers here.