1) Subclass and customize 2) You can't (that is good, there is no overhead if no transactional resources are used) 3) Committing after INVOKE APPLICATION and opening a second transaction in RENDER RESPONSE (which usually only reads data) keeps locks in the database, created from inserts, updates, and deletes during INVOKE APPLICATION, as short as possible View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4042635#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...