3 Replies Latest reply on Apr 7, 2006 7:45 AM by luntain

remove on detached object no IllegalArgumentException??

rparree Mar 6, 2006 8:17 AM

Hi,

In a small test application, I have a client, a remote session bean and an entity. In the client I have the following code:

Employee e = manager.getByName("Jennifer Wirth");
manager.fire(e);

(Where manager is the Remote Session Bean).

The implementation of the fire method is:

// em is the entity manager
em.remove(emp);

According to the EJB spec 3.2.2 3rd option this should this not result in a IllegalArgumentException?

The code above comes from an earlier Hibernate example. I know in hibernate the state transition from detached to transient is allowed.

Is this a left ofer, feature or insight that this will change in the next draft (or am i just reading it wrong?)

Cheers,

Raphael

1. Re: remove on detached object no IllegalArgumentException??

mwoelke Mar 6, 2006 10:26 AM (in response to rparree)

hi,
u are receiving this exception since remove, as defined by the spec (persistence 3.1.1), throws illegalargumentexceptions for detached entities. If you want to remove the entity that way, u first have to reintegrate the entity instance in the persistence context using merge.

regards, milan wölke
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2. Re: remove on detached object no IllegalArgumentException??

rparree Mar 6, 2006 10:40 AM (in response to rparree)

Milan,

Thanks for your post....However, the problem is i am NOT receiving this exception when I am indeed expecting it. My sentence was not too clear.. it should read

"According to the EJB spec [section] 3.2.2 3rd option should this not result in a IllegalArgumentException? [exception]"

Environment is jboss-4.0.4RC1

Cheers,

Raphael
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3. Re: remove on detached object no IllegalArgumentException??

luntain Apr 7, 2006 7:45 AM (in response to rparree)

In Jboss 4.0.4.CR2: if you do it in the way of ejb3 spec final draft you would get an exception :). NonUniqueObjectException. You can remove only detached objects.
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