to lightbulb432, Yea. You are right. I hate to change the default isolation level. I tried to manually commit the transaction before I raiseEvent, but the transaction was managed by Seam, so I can't do this manually. And the default REPEATABLE-READ makes the observer running in another transaction won't be able to read the uncommited data if it get executed before the commit. Let me try to find if there is any other way to force the other component use the same transaction which raises event. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4006077#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...