Hi,

I have a problem where two different objects (A & B) are referring to a third object (C) and B is contained in A.

A------- C
|
B------- C


Save is fired on A. I use lifecycle methods on A to save B. i.e. in lifecycle method "onUpdate" of A, I have written

[b]session.saveOrUpdate(getB())[/b]

While saving it throws exception

Caused by: net.sf.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: C

I tried writing

[b]session.flush() [/b]

immediaely after

[b]session.saveOrUpdate(getB())[/b]

Still the same exception is thrown.

I need help ASAP. Thanking in advance.

Regards


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[b]Hibernate version:[/b]

[b]Mapping documents:[/b]

[b]Code between sessionFactory.openSession() and session.close():[/b]

[b]Full stack trace of any exception that occurs:[/b]

[b]Name and version of the database you are using:[/b]

[b]The generated SQL (show_sql=true):[/b]

[b]Debug level Hibernate log excerpt:[/b]

You should just let Hibernate managing the dependencies for you (witth cascade option). In you case, I guess you tried to save (create) an object that Hibernate already saved. More code + xml mappings would help here.

HI,

Thanx a lot for your promp reply. The thing is I CANNOT use hibernate cascade for A---B relationship. Cannot provide much code due to privacy issue. Anyway I did a workaround. I opened one more hibernate session in onUpdate and written following code:

SessionFactory sessionFactory = ServiceLocator.getInstance().getHibernateSessionFactory();

Session newSession = sessionFactory.openSession(session.connection());
newSession.saveOrUpdate(getB());
newSession.flush();
newSession.close();
session.refresh(this);

This worked perfectly.

Please let me know if you have a better option.
Thanx again