WebLogic has a proprietary event service. It is a lot faster than a
full-blown message service.
> -----Original Message-----
> From: Robert Hargreaves [SMTP:[EMAIL PROTECTED]]
> Sent: 21 November 2000 14:07
> To: [EMAIL PROTECTED]
> Subject: Alternative to EJB Callbacks
>
> Hi all,
>
> We have a requirement in out application where need to continually update
> a
> progress bar on the client screen whilst the EJB App Server performs a
> task
> (a single remote method call to a stateless session bean) which lasts
> about
> 20 secs. The ideal way to do this would be to use a callback method that
> updated the client at regular intervals, say every second, from the
> session
> bean. This can be done with standard RMI but our app server has its own
> version RMI that means we can't do this.
>
> What other alternatives are there to callbacks. I've read somewhere you
> can
> get similar functionality with EJB2.0 Message Beans and/or JMS, but aren't
> these overkill for a progress bar?
>
> Any help would be greatly appreciated,
>
> Rob Hargreaves
>
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