Update no hibernate com annotation

Assuntos Gerais
#1

Pessoal,

Estou aprendendo a usar o annotation e me deparei com um problema, em lugar algum encontrei um exemplo de update usando annotation.

Alguém tem algum exemplo pra me passar?

Encontrei esse em um site:

public void update(Incident incidente) throws Exception
	{
		Session session = HibernateUtil.getSessao();
		session.beginTransaction();
		session.update(incidente);
		session.getTransaction().commit();
	}

porém, toda vez que tento executar ele recebo esse erro:

org.hibernate.StaleStateException: Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1
	at org.hibernate.jdbc.Expectations$BasicExpectation.checkBatched(Expectations.java:61)
	at org.hibernate.jdbc.Expectations$BasicExpectation.verifyOutcome(Expectations.java:46)
	at org.hibernate.jdbc.BatchingBatcher.checkRowCounts(BatchingBatcher.java:68)
	at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:48)
	at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:242)
	at org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.java:92)
	at org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.java:87)
	at org.hibernate.jdbc.AbstractBatcher.prepareBatchStatement(AbstractBatcher.java:218)
	at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2289)
	at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2242)
	at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2542)
	at org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:92)
	at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:248)
	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:232)
	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:140)
	at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
	at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
	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 dao.IncidentDAO.update(IncidentDAO.java:31)
	at testes.Teste2.main(Teste2.java:43)

Alguma dica?

Obrigadão!!

#2