[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - OnetoMany - cascade all

[trouby]

Hey,

I think I have a very basic confusion regarding cascade,
I have the following simple relationship:


  | public class message {
  | 
  | private Set<Comment> comments;
  | 
  | @OneToMany(mappedBy = "message", fetch = FetchType.EAGER, cascade = CascadeType.ALL)
  | public Set<MessageComment> getComments() {
  | 	return comments;
  | }
  | 
  | //set...
  | }
  | 


And

  | private Message message;
  | 
  | @ManyToOne(optional=false)
  | public Message getMessage() {
  | return message;
  | }
  | 
  | //setter
  | 


I'm trying to persist a new comment by:


  | //assuming a message with id 1 exists in db
  | Message m = entityManager.find(Message.class,new Long(1));
  | Comment c = new Comment();
  | c.setMessage(m);
  | m.getComments.add(c);
  | entityManager.merge(m);
  | 


I don't want to persist the comment directly but through the message,

if 'getComments' is cascaded with ALL, shouldn't the new comments get persisted when em.merge(m) is invoked?




Thanks,

Asaf.

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