Hi again ! Some of my embeddable classes are embedded more then once in a class. So I am forced to override the column names to avoid to get a duplicate column names error for the attributes of the embedded class. Is there any option to enable (e.g.) appending the the embedded colname to the attribute name in the embedding class for creation of the complete column name ? Or is there a workaround which I do not know, yet ? Thanks for every hint ! Werner View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4079241#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...