you can use reveng.xml to configure the id generator for your tables. if that is not flexible enough for you then try and implement the logic in a custom revengstrategy impl or simply tweak the hbm.ftl templates. Note that i'm not sure if the annotation generation does ths correctly; so we might need to fix that. let me know if you bump into problems there. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3959465#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...