I'm having a problem with the <subclass> mapping. I have something like this:




My problem is that when I try to load Foo, the set of stuff that gets loaded is of both class A and B. The SQL that gets generated does not use the discriminator-value at all. Is this the way it's supposed to work?


Thanks.

Shouldn't your one-to-many mapping from Foo be to the Base class, rather than A?

Ok, apologies, just re-read your problem, so ignore my first answer.

It doesn't need to use the descriminator as it knows what type of class it is retrieving - it only needs to query against the descriminator if it doesn't know the exact class type that it's retrieving. i.e. if you'd followed my first answer, then it would use the descriminator to work out whether the class type was A or B within the Set.

This is a known issue. Use the where attribute of the set element to workaround.