We reference a set of child objects within the parent definition using a set relationship and define the child class separately. But, if the child class has some additional properties that are part of its primary key (in addition to the parent's Id which is specified as a key in the set), how do we specify this information in the child class, so that we can use hibernate to populate the child table independently also (and not just as part of the parent)?

Thank you!
Jagchi