EJB communication

[cari34]

Hi guys,
I have several EJBs deployed on the same JBOSS 3.2.2 server.
The communication between these EJBs is through the remote interfaces.

I would like to know if JBOSS automatically applies the passed-by-reference model when it finds that the EJBs are on the same container, even if the calls are made through the remote interface ?

Or should I declare this in the jboss.xml file of the EJBs in question ?

Have you any idea about this ?

Thank you very much.

Cari.

[sesques]

Hi,

Nothing to do, it is the standard behaviour.

Pascal

[gorano]

Why not using local interfaces?

If you have no intention to split your beans over different JBoss instances
than you have a perfomance loss on using remote.

/G

[darranl]

you have a perfomance loss on using remote

In what way? JBoss treats them in the same as local interfaces by default anyway.

[cari34]

Thank you guys,
It's greate.

Cari.

[gorano]

Yes you are right, JBoss pass-by-reference if the remote interface is on the same machine, and this is particular to JBoss, as I understand it
(I take my comment about "performance loss" back).

However you might consider the following differences between remote and local:

1. No need to catch remote exceptions when using local.

2. This will free callers from dependence on the EJB API. N ot a big deal but...

3. portability to less clever ejb containers (where we have pass-by-value).

4. Security! Data is never directly accessible outside the container via port 1099.

I had to find some advantages of using local interfaces so I can justify
my own use of them ;-))

Cheers

Goran