Re: How To get port of the RMI Server?

On Fri, Apr 17, 2009 at 5:49 AM, Tony Obermeit <[email protected]> wrote:
> This is very useful to me, thanks.
>
> When using the constructor that allows a specific port number to be
> specified, what happens if you want to have multiple remote objects
> (say RemoteEmployee, RemoteDepartment, RemoteJobClassification,
> etc)... Do you need a separate port for each remote object, or is it
> ok to have multiple objects on a single port.
>
> Is there are situation / throughput level that would cause you to use
> more than a single port? =A0Any guidance appreciated.

By default, RMI will manage ports for you. There can be any number of
remote objects per port, they all have an ObjectID. And the RMI client
will make additional connections when multiple concurrent requests are
happening, but in general are trying to reuse existing connections.
Another common misconception is that each remote object needs to be
registered in RMI Registry or JNDI. In fact, that is not at all
needed. Normally only used as bootstrap, but you could transfer the
serialized Stub to the client by any digital transport; your own
socket, email, http request, avian carriers... And when you have a
reference to an exported remote object being serialized, the Stub will
be the replacement and sent across in the MarshalledObject.

You can also provide Server and Client socket factories for more control.

Cheers
--=20
Niclas Hedhman, Software Developer
http://www.qi4j.org - New Energy for Java

I  live here; http://tinyurl.com/2qq9er
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