This is implemented (not "officially" as there is no docs) in Seam (1.2.1.GA onwards). Gavin/Shane know about. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4073208#4073208 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4073208