Hi,

When you have a class design in which every class inherits from a common abstract super class how does one go about defining the corresponding HBM XML? In our database each concrete class is represented as a separate table. I was hoping to use the union-subclass strategy.

All examples I've come across seem to imply that all hibernate mappings for the class hierarchy are required to be in one file. Is this the case?

Hope you can help.

Mucho Thanks.

I wish Hibernate configuration files supported XML includes.

I had to put a hack around configuration loads, using an InputStream which interprets my non-standard #include syntax (but now my XML editors complain about it, as it is not DTD-kosher).

In my case, I am using such includes to "package" groups of mapping files (roughly corresponding to Java class packages), so that individual, application level configuration files do not have to change whenever one of the packages adds a new object.
But it can be used to include a repeated mapping (base class) portions (we do not have too many of those).

{don't forget to rate IF this posting helps}.
Martin.

Hi Mohamed,

You can in fact do what you are proposing. All you need to do is put the "extends" attribute on the "union-subclass" tag in the child's mapping file.

Hope that helps.

PS. Keep digging that dirt.