Using Hibernate 3.1 and have two mapping files m_devotee and m_member with classes M_devotee and M_member. I want to avoid duplicate entries from m_devotee column devotee_id which is referenced as devotee_id foreign key in m_member table.
I'm new to Hibernate and want to know if I'm missing some tags in the mappings.
For now, I tried to prevent duplicates by adding code in my dao file. It gives me a ClassCastException. It should also rollback the transaction and return false to the servlet so it does not forward it to other jsp file.
M_devotee object cannot be cast to M_member as seen here.