What I do here, not very clean but it works, I have created an annotation called Sequence and then I place it on my bean as follow @Sequence(name="TABLE_SEQ") where table_seq is the name of my Oracle sequence. In my persistent class, I create a new persistent bean when needed with empty properties. But I set already its id by doing this (pb is my persistent bean): | StringBuilder sb = new StringBuilder("select "); | Sequence seqAnnotation = persistentBeanClass.getAnnotation(Sequence.class); | if (seqAnnotation != null) | sb.append(seqAnnotation.name()); | | sb.append(".nextVal from dual"); | | Query query = entityManager.createNativeQuery(sb.toString()); | Long id = new Long(((Number) query.getSingleResult()).longValue()); | pb.setId(id); | So your bean has the same id generated by the Oracle sequence, before comit. Hope this helps View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4085466#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...