[jboss-user] [JBoss Seam] - Re: EntityManager: For newbies or to close gaps in your know

[y_zl]

Hi! bfo81,

great! 

I have one question as following:

Suppose I have two tables 


  | user(id, name) 
  | userlog(id,userid,content)
  | 

I'd like to create a new user and write the log at the same time.

Suppose I use extended persistent manager. 

I have the following code:


  | @In @Out user;
  | 
  | @PersistenceContext(type=EXTENDED)
  | private EntityManager em;
  | 
  | public void new_user()
  | {
  | 
  | user.setName("user");
  | Userlog userlog=new Userlog();
  | userlog.setContent("register");
  | userlog.setUser(user);
  | 
  | -----
  | 
  | }
  | 

the question is:
1)Do I need to em.persist to save user and userlog?
2)If it is needed. Which one is first? user or userlog

thanks in advance

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