Hi,

I can't find out how to make the following working :

@Table(name = "A")
@AccessType("field")
public abstract class A { ...}

@Entity
@Table(name = "B")
@AccessType("field")
public class B extends A {
@Id
@GeneratedValue
private long hId;

...
}

@Entity
@Table(name = "C")
@AccessType("field")
public class C extends B {
@Id
@GeneratedValue
private long hId;

...
}

The default behaviour seems to be ONE CLASS PER HIERARCHY. (Using default value for discriminant)

* if I put the @id (and long hId) in both B and C class, hibernate can't start telling that it's not possible to Override id.
* if I remove the id in the class C, Hibernate start normally, then I can store object instance of B but not instance of C. It says : "No column Id found".

The question is : how can I make hibernate works for a more than one level of concrete class inheritance ?
I'd like to instantiate and store (via hibernate) B & C instances. The problem seems to be where to place the Id ? how many of them is it legal to put ? where ?

Thx, JL.

use:
@Inheritance(strategy = InheritanceType.JOINED)
on Class A and give class A the ID.
remove the ID's from classes B and C

hey presto, 3 tables linked by PFK.