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Date: Wed, 23 May 2007 14:46:58 +0200
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From: Jochen Zink <jochenlist@web.de>
To: user@geronimo.apache.org
Subject: Re: Developing a MessageDrivenBean
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yes, setRollbackOnly works... simple thing :) Thanks a lot!

Does anyone know, if the duration time can be configured=3F With default set=
tings the message is delivered immediately to the MDB. It looks like a kin=
d of spamming it the MDB can't handle the message because a backendsystem =
is not available. It would be nice to configure a duration time after the =
message is redelivered.

Regards
Jochen


> -----Urspr=FCngliche Nachricht-----
> Von: user@geronimo.apache.org
> Gesendet: 22.05.07 17:25:52
> An: user@geronimo.apache.org
> Betreff: Re: Developing a MessageDrivenBean


>=20
> I am not really an mdb/jms expert.... so there may be a way to do =20
> this with acknowledgements.  However one sure way to do this is with =20
> transactional delivery.   If the mdb can't process the message it can =20
> call setRollbackOnly on the MessageDrivenContext.  According to what =20
> I've heard this is likely to be significantly slower than non-=20
> transactional delivery.
>=20
> thanks
> david jencks
>=20
> On May 22, 2007, at 4:43 AM, Jochen Zink wrote:
>=20
> > Hello,
> >
> > I have a simple MDB which works as a JMSReceiver. The MDB =20
> > subscribes to a JMS-Topic. Everything works fine. If a new message =20
> > is published to the Topic, the MDBs onMessage Method is called.
> >
> > I want, that the bean can receive the same message over again, If =20
> > an error inside the bean is raised. Normally I can deal with =20
> > "jmsmessage.acknowledge();" Method to notify, that the reciever =20
> > handled the message correctly. If an error is raised on the =20
> > receivers side, no acknowledge() is called. Normally in this case I =20
> > expected, the message would send over again. But not with a MDB. It =20
> > does not matter if I call acknowledge or not. The MDB creates the =20
> > JMSSession where I can configure, that the session runs in =20
> > "CLIENT=5FACKNOWLEDGE" mode.
> >
> > What musst I do to get this behavior=3F
> >
> > I want, that the messageDrivenBean can say, that everything is =20
> > correct and the message can be deleted from the topic if all =20
> > subscibers have it received. But if the Bean raised an error, it =20
> > should be possible for the bean, to receive the same message over =20
> > again after a while.
> >
> > Maybe it is only configuration stuff. But I can't find infos on =20
> > activeMQ or openEJB Homepage.
> >
> > Can someone help me=3F
> > thanks!
> >
> > =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
> > SMS schreiben mit WEB.DE FreeMail - einfach, schnell und
> > kostenguenstig. Jetzt gleich testen! http://f.web.de/=3Fmc=3D021192
> >
>=20
>=20


=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
SMS schreiben mit WEB.DE FreeMail - einfach, schnell und
kostenguenstig. Jetzt gleich testen! http://f.web.de/=3Fmc=3D021192