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
[email protected]
https://lists.sourceforge.net/lists/listinfo/jboss-user