tried everything, but it seems not to be possible in ejb3 ... unfortunatelly javax.ejb.SessionSynchronization is just useable in statefull session-beans, but I have stateless session-beans ... The problem arises in combination with cascading storing of entities that is supported in ejb3 ==> when a statless session-bean updates an entity with relations you have no chance to get a clue which objects have been modified! You might use ejbs PreUpdate to get an idea which object has been updated, but that is not called synchronously ==> in other words the callback happens after you left the stateless function call (so no way to be manipulated within an interceptor !). You can also not implement some fiunctionality in the PreUpdate-Call itself because you are not allowed to use entityManagers there --> so I hoped to solve it with AOP - but NOPE ;-) Anyhow - thx View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3992739#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...