I have a question that is similar but actually different.
We are working on migration of a component of a working system. We have entities in the model but to have other parts of the system interact with these entities, they ALL need to be derived from a certain base class (lets suppose) XBase. We currently have 56 entities in our model and we have not been able to find any way to have all entities inherit from XBase. Entity Framework gives the option by modifying the T4 template class to have all the entities derive from a single base class. Is there any such option or workaround in OpenAccess?
XBase is found in another component and the components of the system would only be able to use the entities of OpenAccess model if they are derived from XBase only.