[jboss-user] [EJB 3.0] - Advanced trigger mechanism for Entities

I am looking for a "trigger" implementation (similar to database trigger) for entity beans. I had a look on the EventListener and they are quite good in many cases but they have one huge disadvantage - they don't give me access to the old object, since only the current object is passed to the @PreUpdate/@PostUpdate methods. Is there any way to get also the old value in JPA or in the JBoss implementation, something like: | @PreUpdate | void preUpdate(EntityClass new, EntityClass old) { | if (new.foo != old.foo) { | | } | } | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4155430#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...