Dear all,

I have a many-to-many relationship between two object: A and B, using an association table AB. I can properly load objects and navigate the relationships. I have set cascade="all" in the many-to-many relationship.

I'm creating a new element in table A, adding to the many-to-many association a B object as shown in the pseudo-code below:

A a = new A();
a.setName ("test");

B b = session.load(B.class, id);

a.getBs().add(b);

session.save(a);
session.commit();[/i]

The issue is that hibernate store in the AB table a new row but it uses "0" as foreign key to the new A object. It seems that hibernate doesn't know the A's id (that is saving) and so it put 0 generating a foreign key violation.

How can I avoid this?

Thanks in advance,

Rosario Alfano

hi
yes ... maybe ...
try to new method in A

nothing to do. It continues to put 0 as foreign key to the added object.

Dear all,

I solved the issue. It was due to the generator class="assigned" I had. I changed it into generator class="native" and it worked properly.

Regards,

ros