hi everybody,

I've spend so much time now trying to figure this out, but i simply don't
seem to get it right.

my database as well as my model look like this:
I used the table-per-subclass strategie to represent the inheritance.





My problem:
i usually don't want to recieve the data from all descriptors. but when i make
a query, i unfortunately always get all the descriptors belonging to my image.

how can i say that i only want "Images that have a DESCRIPTOR_1" and
only get the image data and the DESCRIPTOR_1 data, but not the data
from all the other descriptor subclasses.

can anybody help me?
some kind of Criteria example would be really great!!

thanks a lot,
cheers nick

If you're using Hibernate 3.x, you should look at Filters.

thanks a lot, exactly what i was looking for!!!