Is it possible to have foreign key enforced without object-to-object mapping?

Question

Assuming the following mappings are provided:

Answer 1

You could always create the Foreign Key DDL manually in your hibernate hbm.xml file:

    ...
    
        [CREATE FK]
        [DROP FK]
     

You can also scope this if different dialects need to be supported.

Check out 5.7. Auxiliary database objects