it seems this is workable on annotation : org.hibernate.test.annotations.filter.subclass.tableperclass.Human
but i don't see how to do in in hbm, at least from the dtd/xsd, there is no such element for the "subclass", "joined-subclass", "union-subclass" shall we change the xsd? ------------------------- Best Regards, Strong Liu <stliu at hibernate.org> http://about.me/stliu/bio _______________________________________________ hibernate-dev mailing list hibernate-dev@lists.jboss.org https://lists.jboss.org/mailman/listinfo/hibernate-dev