TransientObjectException if both sides of 1:1 are set in tx

sahoo · **Joined:** Wed Mar 29, 2006 3:47 pm **Posts:** 17

I am getting org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: IncidentStatus.incident -> Incident when I create two new entities and associate them with a OneToOne relationship inside the same transaction. My client code looks like this:

Code:

   emf = Persistence.createEntityManagerFactory("pu1");
   EntityManager em = emf.createEntityManager();
   em.getTransaction().begin();
   String id = args[0];
   Incident i = em.find(Incident.class, id);
   i = new Incident(id);
   IncidentStatus ist = new IncidentStatus(id);
   i.setIncidentStatus(ist);
   ist.setIncident(i);
   em.persist(i);
   em.getTransaction().commit();

If I don't call ist.setIncident(i); in the above code, it works.

Entity class definitions are supplied below.

Hibernate version: Hibernate EntityManager 3.2.0.CR1, Hibernate 3.2 cr3

Mapping documents:

Code:

@Entity public class Incident {
   @Id String id;
 
   @OneToOne(cascade=CascadeType.ALL)
   IncidentStatus incidentStatus;
 
   public Incident(){}
 
   public Incident(String id) { this.id = id; }
 
   public IncidentStatus getIncidentStatus() { return incidentStatus; }
 
   public void setIncidentStatus(IncidentStatus incidentStatus) {
       this.incidentStatus = incidentStatus;
   }
 
}
 
@Entity public class IncidentStatus {
   @Id String id;
 
   @OneToOne(mappedBy="incidentStatus")
   Incident incident;
 
   public IncidentStatus() {}
 
   public IncidentStatus(String id) { this.id = id; }
 
   public Incident getIncident() { return incident; }
 
   public void setIncident(Incident incident) { this.incident = incident; }
 
}

Full stack trace of any exception that occurs:
Exception in thread "main" javax.persistence.RollbackException: Error while commiting the transaction
at org.hibernate.ejb.TransactionImpl.commit(TransactionImpl.java:63)
at Client.main(Client.java:22)
Caused by: org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: IncidentStatus.incident -> Incident
at org.hibernate.engine.CascadingAction$9.noCascade(CascadingAction.java:273)
at org.hibernate.engine.Cascade.cascade(Cascade.java:257)
at org.hibernate.event.def.AbstractFlushingEventListener.cascadeOnFlush(AbstractFlushingEventListener.java:130)
at org.hibernate.event.def.AbstractFlushingEventListener.prepareEntityFlushes(AbstractFlushingEventListener.java:121)
at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:65)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
at org.hibernate.ejb.TransactionImpl.commit(TransactionImpl.java:53)
... 1 more

Name and version of the database you are using:
Derby

alesj · **Posted:** Sun Jul 16, 2006 6:26 am

Quote:

Caused by: org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: IncidentStatus.incident -> Incident

That's exactly what it is.
It first tries to persist Incident, sees that it has an association - IncidentStatus - which has to cascade. But IncidentStatus again has association - Incident - which is really transient and unsaved.

emmanuel · **Posted:** Sun Jul 16, 2006 1:54 pm

Hibernate EntityManager 3.2.0.CR1, Hibernate 3.2 cr3 should not work together anyway if I recall :-)

I can't reproduce on core 3.2.0.CR3 and Annotations HEAD

sahoo · **Joined:** Wed Mar 29, 2006 3:47 pm **Posts:** 17

emmanuel wrote:

Hibernate EntityManager 3.2.0.CR1, Hibernate 3.2 cr3 should not work together anyway if I recall :-)

You are quite right. Those versions don't work together. I am building Hibernate core, entity manager and annotations from the source code that I checked out day before yesterday. I specified those wrong versions because that's what I see being printed by Hibernate run time in the console.

emmanuel wrote:

I can't reproduce on core 3.2.0.CR3 and Annotations HEAD

Have you tried reproducing using both core and annotations from HEAD? I am building both of them from HEAD.

Sahoo

emmanuel · **Posted:** Thu Jul 20, 2006 4:35 am

Yes I work with HEAD form core and annotations.
if you can attach your testcase to JIRA, I'll test it. Maybe I'm missing one of your config.

sahoo · **Joined:** Wed Mar 29, 2006 3:47 pm **Posts:** 17

Attached test case to: http://opensource.atlassian.com/project ... se/EJB-206

Thanks,
Sahoo