Hello Everyone:

I am new to Hibernate so I apologize if my questions seem very basic. I am using "A table-per-subclass mapping" and I was wondering if someone can help me with my problem. Let's say I have class "Billing" and two subclasses "BackCard" and "CreditCard". This translates to 3 tables at the database level. Now my question is:

Under what name I should save the xml configuration file? should it be Billing.hbm.xml (the name of superclass)?

Should I provide any xml configuration file for the subclasses despite the fact I have declared them in the original config file within <joined-subclass> tags ?

I would call it Billing.hbm.xml. I think you can call it whatever you want to if you're willing to load it into the configuration manually. But it will be found automatically if the name matches the class name.

If the sub-classes are described in that file, don't create other files. If you want, you can describe the sub-classes in separate files, but I'm sure you'd run into problems if you map them in more than one place.