i'm having the same problem than kai222. When i try to load a user, i need to validate that don't exists añother user with the same name, bue when i execute the query to validate that, before to do the SELECT, it make a flush persisting the user without validate the name. In pseudocode | persist() { | validate() //here i make a query to validate if exists another user with | // the same name, but before execution of the query, make a | //flush and persist the object without validate | if( isValid ) | persist() | else | errorMessage() | } | thanks in advance View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4125124#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...