[jboss-user] [EJB 3.0] - Re: Entitymanager Persistent

[ALRubinger]

Well, unless the relationship defined is annotated with @Cascade (CascadeType.PERSIST), you can't persist one entity and expect the relationship to be inserted as well.

So that's one solution.

However, I typically keep the Cascading strategies to NONE as a default (to keep close tabs on what operations the container might do without my explictly telling it so; this is a perference only), and would do the following:

// Create Rollingstock
  | rollingstock = new Rollingstock();
  | rollingstock.setNextRoute( "STH" );
  | rollingstock.setRoute( "HALL" );
  | 
  | // Create Schedule
  | schedule = new Schedule();
  | 
  | // Persist Each
  | manager.persist(rollingstock);
  | manager.persist(scheulde);
  | 
  | // Associate (bi-directionally) after Persisted
  | rollingstock.setSchedule(schedule);
  | schedule.setRollingstock(rollingstock);

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