[jbossseam-issues] [JBoss JIRA] Created: (JBSEAM-3562) update() should consult the dirty flag on the persistence context

[Dan Allen (JIRA)]

update() should consult the dirty flag on the persistence context
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                 Key: JBSEAM-3562
                 URL: https://jira.jboss.org/jira/browse/JBSEAM-3562
             Project: Seam
          Issue Type: Feature Request
          Components: Framework
    Affects Versions: 2.1.0.CR1
            Reporter: Dan Allen
            Assignee: Dan Allen
            Priority: Minor
             Fix For: 2.1.0.GA


When update() is called on a Home instance, only attempt to flush, register the status message, and raise the transaction success event if the persistence context was dirty. Of course, this only is effective if Hibernate is the persistence provider.

@Transactional
public String update()
{
   joinTransaction();
   // For a non-Hibernate JPA provider, this always returns true
   if (PersistenceProvider.instance().isDirty(getEntityManager()))
   {
      getEntityManager().flush();
      updatedMessage();
      raiseAfterTransactionSuccessEvent();
      return "updated";
   }
   return "unchanged";
}

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