I have a CurrencyAmount object in my POJO that contains two properties (currency amount, currency type), each should be mapped to a different column in the database. If either of the two columns is null Ì'd like the whole object to be null, so I don't want to use a component, since it would instantiate the CurrencyAmount then call the setters with the null column(s).

Can I accomplish this with a UserType? Is there a way to map two columns with one UserType? Any other suggestions?

Thanks in advance
Paul

You can achieve this with Hibernate's CompositeUserType

So how does the mapping file look for this then, I'm using xdoclet to generate my mappings and Im not sure how to tell it that one property maps to two columns