Two entities, Picture and Person, ManyToOne Class Picture {
.... @ManyToOne public Person getOwner() {... } } Picture picture = <a detached entity> // the picture has a owner that is an instance of Person(not CGLIB enhanced). //change picture name, then merge Picture p = em.merge(picture); The owner(Person) of p is changed to a CGLIB enhanced instance, and its all member variables become null. It has an Initializer that says initialized=true. Why is that? I expected the object returned from em.merge() would keep all the data. One thing I do not understand: em.create(entity) will change entity directly. For merge, why it return a different instance? which instance should I work on after merge? Thanks for help. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3925924#3925924 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3925924 ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642 _______________________________________________ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user