Hi, Is there a way to map a class without having a reference to the class, instead telling hibernate to just use a referenceId? An example for the question: public class A{ long id; long referenceId; } public class B{ long id; String name; } let's say the referenceId in A has a B's id as value. Can i query for all A's that have referenceId to B who's name is "name". I know it is not a good practice, but is there a way to do that? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4242608#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...