[JBoss Seam] - detached entity passed to persist
by quilian
Hello Folks!
in the examples it looks all so easy, but i still dont get it right.
What are the possible reasons for this exception to occur?
javax.persistence.PersistenceException: org.hibernate.PersistentObjectException: detached entity passed to persist
I dont call em.persist nor em.merge or anything. i just want to edit that @DataModelSelection annotated entity in a form and have it persisted.
I saw at least two possible solutions to get the right object:
@DataModelSelection
Entity selectedEntity;
in the booking example HotelBookingAction.java:
| @In(required=false) @Out
| private Hotel hotel;
|
|
| @Begin
| public void selectHotel(Hotel selectedHotel)
| {
| hotel = em.merge(selectedHotel);
| }
|
however both of these option lead to the same error.
So again: what are the reasons for the PersistentObjectException to occur?
Thanks for any hints.
Tobias Kilian
PS: i know this is ejb stuff, so perhaps i should ask there?
View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4040580#4040580
Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4040580
19 years