I'm trying to map a legacy system that uses triggers to generate the primary key. I know that to be able to retreive the primary key I have to use the select generator and assign to it a unique value property. This is similar to the one shown below.



However, the table i'm trying to map doesn't have any unique value property. Its uniqueness is determined by the combination of all its columns.

Is there a way to tell hibernate to load the id using multiple properties instead of just a single unique property? Or is there any other way around this problem?

Thanks in advance!