Hi,

i have a problem with hibernate...
A Child can't be saved, because the hibernate have an error. How know what i do false.....

The Source and the Error you see in the next few lines.....

THANKS FOR EACH ANSWER



Hibernate version:
hibernate3.jar


Logfile documents:

44500 [RMI TCP Connection(6)-192.168.101.87] ERROR 2009-03-10 09:29:48,656 org.hibernate.AssertionFailure - an assertion failure occured (this may indicate a bug in Hibernate, but is more likely due to unsafe use of the session)
org.hibernate.AssertionFailure: null id in knxathome.persistence.pojos.NavigationElement entry (don't flush the Session after an exception occurs)
at org.hibernate.event.def.DefaultFlushEntityEventListener.checkId(DefaultFlushEntityEventListener.java:48)
at org.hibernate.event.def.DefaultFlushEntityEventListener.getValues(DefaultFlushEntityEventListener.java:150)
at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:106)
at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:195)
at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:76)
at org.hibernate.event.def.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:35)
at org.hibernate.impl.SessionImpl.autoFlushIfRequired(SessionImpl.java:978)
at org.hibernate.impl.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:135)
at org.hibernate.impl.AbstractSessionImpl.getNamedQuery(AbstractSessionImpl.java:60)
at org.hibernate.impl.SessionImpl.getNamedQuery(SessionImpl.java:1245)
at knxservice.persistence.logic.NestedSet.getTree(NestedSet.java:346)
at knxathome.persistence.rmi.RmiPersisterImpl.getTree(RmiPersisterImpl.java:312)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at sun.rmi.server.UnicastServerRef.dispatch(Unknown Source)
at sun.rmi.transport.Transport$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Unknown Source)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(Unknown Source)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(Unknown Source)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
44531 [RMI TCP Connection(6)-192.168.101.87] INFO 2009-03-10 09:29:48,687 knxservice.persistence.logic.VisualizationLogic - Getting parent element id for primary key: 1

Quelltext:

.....
// finally append the new child
child.setLft(parent.getLft() + (offset - 1));
child.setRgt(parent.getLft() + offset);
primaryKey = (Integer) session.save(child);//<<< error line...

// commit transaction
tx.commit();
....





Problems with Session and transaction handling?

Read this: http://hibernate.org/42.htm

As the assertion message says:

Are you doing the tx.commit(); even after an exception.

Is this code in the finally block?

this code is in the finally block and at the end i commit the transaction.

My Problem is this line, which i marked with "error line". If i delete this line, the programm won't be have an error.....

Well if the code is in the finally block then it answers why you are getting this assertion. In the try block there was some exception which occurred which makes hibernate session flawed, but in the finally block you are trying to flush this flawed session. And that's why you are getting the assertion.

Why are you saving the child in the finally block?