Hello Karl-Fredrik,
thank you for your answer, it nicely completes Rickard's proposition. I'll
use this way.
Cheers,
Sacha
> -----Message d'origine-----
> De : [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]De la part de Karl-Fredrik
> Blixt
> Envoye : jeudi, 4 janvier 2001 13:30
> A : jBoss
> Objet : Re: [jBoss-User] Callback to clients
>
>
> Sacha Labourey wrote:
> >
> > This does not seem to fit in the EJB concept. Am I wrong?
> >
> Currently, no. JMS in the upcoming 2.0 spec should be what you need.
>
> > How to implement these call-back and server background
> processing with the
> > EJB?
> >
> You could have the client register itself as an RMI object, pass itself
> along (thus being converted into a stub), then have the EJB call a
> service passing the stub along as a parameter, and then return
> immediately. The service that performs the actual work (eg downloads the
> file) would then call the client through RMI when it is done:
>
> client EJB stub service
> | | |
> | foo() | |
> |------>| | bar() |
> | |------------->|
> | | |
> | |
> Call has returned to the client.
> The service now performs the actual work (timed, new thread in bar() or
> whatever).
> | |
> | | |---
> | | | | baz()
> | | |<--
> | | |
> | | done()|
> | done() |<------|
> |<-------------|
> | |
>
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