I have 2 classes mapped as joined subclass:

@Entity
@Inheritance(strategy=InheritanceType.JOINED)
class A{
@Id
@GeneratedValue
private Long id;
}

@Entity
@PrimaryKeyJoinColumn(name="id")
class B extends A{
}


I have created and saved object A, but now I would like to save the same object as B.

The only things that seem to work are:
1. copying all data to B, delete A and save B. (not very useful because it creates a new id)
2. using native sql to insert id from A into B

Is there a way to do this in a "normal hibernate" style?

I have exactly the same problem...
Did you find the answer??

nope...