A quick answer,
AFAIK there's no such "push" mechanism possible in EJB, and recently got the
confirmation from people in this list.
So one has to do his own pus mechanism implementation and we have
succesfully achieved this by registering call backs on the clients and
calling these on an event.
The scenario is exactly as you have mentioned with the client showing an
"interest for updates"( subscribing ), and recieving those updates only. I
have to get back to some people who guided me through the same.
BTW we are using IBM Webspere App Server which supports EJB Spec 1.0+ , and
jdk1.1.7.
Hope this helps,
Yogesh
-----Original Message-----
From: Matthew X Brunton [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, July 12, 2000 11:41 AM
To: [EMAIL PROTECTED]
Subject: real-time eventing??
I have a quick question I hope someone out there can help me with.
Do any of the EJB servers out there support "eventing" back down to the
client.
For instance if a client application had a grid displayed with x rows of
data,
maybe each being an EJB object, or the grid as a whole was an EJB object, is
there any way to "register an interest" on any updates to the underlying
data,
i.e. when another process updates the data, we want to know about it, and
keep
the data shown in-sync for all clients. Would this functionality have to be
hand-coded, or is there support in any commercially available EJB servers??
I would prefer something along the lines of the Corba event channel "push"
mechanism.
Hope it's clear what I am asking here.
Regards,
Matt
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