Hi,
I'm in the early stages of designing my data model with hibernate and would like to use object wrappers (Integer instead of int, etc) for my numeric properties and am wondering if that comes with a performance penalty in hibernate.

Does anyone know if this is anything to be concerned about? Should I push for using primitives or does it not really matter? - Duncan

I would guess that using Objects will not have any significant performance impact.
Objects must be used if corresponding columns in the database are nullable.

Thanks,
I did not know that nullable columns need to be objects, but now that I think about that it makes sense. I'm going to stick with your advice and use Object wrappers instead of primitives in my model classes.