Hello, I have some simple entities with ID annotated as:
| @Entity | @Table(name="MY_TABLE") | public class MyEntity { | private Long id; | | @Id @GeneratedValue | @Column(name="ID") | public Long getId() { | return id; | } | | public void setId(Long id) { | this.id= id; | } | } | When I try to create a new entity and set its ID manually I get an exception, here's a sample code: | MyEntity my = new MyEntity(); | my.setId(new Long(4)); | my.setSomeMoreMethods(...) | .. | em.persist(my); | I get the following exception 23:02:31,281 FATAL [application] Failed to perform the operation, failure message: javax.persistence.PersistenceExceptio n: org.hibernate.PersistentObjectException: detached entity passed to persist: velo.entity.ActionLanguage javax.faces.el.EvaluationException: Failed to perform the operation, failure message: javax.persistence.PersistenceExcep tion: org.hibernate.PersistentObjectException: detached entity passed to ... Why is that? The entity is NOT detached, it never got persisted, and I would like to set the ID manually sometime before persisting... btw: If I invoke em.merge(my); it works, but it persist the object with new IDs So, is that possible? with TopLink it wasn't a trouble, Thanks, Asaf. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4071355#4071355 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4071355 _______________________________________________ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user