Hallo

How can i map a one-many relationship where the set is a collection of different objects each implementing a common interface. each implementaion of the inteface maps to a different table.

for example.

parent object : Person
common interface : ContactDetail

subclass : Address, email, PhoneNumber e.t.c;

Assitance will be greatly appreciated.

I believe that it don't works if you define ContactDetail as java interface.
It should indeed work if you define ContactDetail as persistent (abstract) superclass of Address, email, PhoneNumber e.t.c.