[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - Can someone clarify SINGLE_TABLE inheritance behavior?

[d-rock]

If I have the following hierarchy:

public abstract class A {...}

public class B extends A {...}

public class C extends A {...}

Should I be able to take an instance from the DB that maps to type B and resave it as type C? I'm using JPA so this would be a merge. I'm thinking I'm going to have to delete the existing instance and then insert the new instance, but I wanted to see if Hibernate could handle that in some fashion.

Thanks,

Derek

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