Hi All,

I am getting org.hibernate.NonUniqueObjectException a different object with the same identifier value was already associated with the session: [com.cisco.hotice.data.beans.Command#1055765]. exeption

Here i am getting command bean instance and changing some fields and updating the new instance. But i am getting this exception.

Pls help me out how to adress fix for this.


Need to adress fix ASAP.

Thanks In Advance.

Parveen

Can you show us the code that causes the NonUniqueObjectException? Are you sure you don't have two Command objects associated with a Hibernate session?

Am using like these to save/update data

try {
Session session = HibernateSessionFactory.getSession();

session.update(persistentInstance);
LogUtil.security("Update Command: "
+ persistentInstance.getCommandId());
} catch (RuntimeException re) {
log.error("update failed", re);
throw re;
}

My log is shows :

org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [com.cisco.hotice.data.beans.Command#1068956]
at org.hibernate.engine.PersistenceContext.checkUniqueness(PersistenceContext.java:549)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performUpdate(DefaultSaveOrUpdateEventListener.java:251)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsDetached(DefaultSaveOrUpdateEventListener.java:214)
at org.hibernate.event.def.DefaultUpdateEventListener.performSaveOrUpdate(DefaultUpdateEventListener.java:33)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:69)
at org.hibernate.impl.SessionImpl.update(SessionImpl.java:447)
at org.hibernate.impl.SessionImpl.update(SessionImpl.java:438)
at com.cisco.hotice.data.hibernate.CommandDAO.update(CommandDAO.java:153)

At some web page i have seen use sesion.saveorupdate() at the begining of the transaction if session is empty. But i am not sure how to implement that

Pls help me !!

Thanks In Advance.
Praveen

Check this http://www.laliluna.de/257.html

this exception means that you already have an
object with the same identifier loaded in a cache
of a session you are trying to use again and
which hasn't been closed.

I'm not sure what HibernateSessionFactory.getSession()
does under the context you are using it. If it
re-associates your thread to a previously opened Session
then this a logical Exception to get.

A safe way to ensure you don't have duplicate objects
in your Session cache is to either evict the object
from cache or close the session and then use
HibernateSessionFactory.openSession().


mosa