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Hibernate version:
3.1
Mapping documents:

HI all,
i am converting my existing EJB-based application to Hibernate, and i need some help with inheritance an dassociations

here's my situation.
I have followign classes

GenericRecord
-site
-date
-type

Record1 extends GenericRecord
- product
- empty
- location
- operator

Record2 extends GenericRecord
- cofc
- ticket
- product

Record3 extends GenericRecord

- location
- manualmode
- operator


I was going for the 'table per class' hierarchy, but was wondering if there was a better way to do that.
Fact is, i already have my discriminator on the GenericRecord (the type column)

anyone can help?

thanks in advance and regard
Marco

You can go for the discriminator which is good apart from the fact that it will not allow constraints like not null check.
If that is an issue for you then use
joined-subclass which is table per subclass. There is a tradeoff here as well as everytime it will query an extra table namely your generictable.
Hope this helps.
Please do rate