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Marcelo Ortega
Ranch Hand

Joined: May 31, 2005
Posts: 528

A client gets a reference (a handle) to a remote object via the method Name.lookup().
But how can that remote object (server) obtain a reference to the client which invoked one of its methods?

Best regards,


Live life to an interface, not an implementation!
David George

Joined: Aug 23, 2005
Posts: 10
I think can not.The server can not invoke the client's method - on my opinion.
Andrew Monkhouse
author and jackaroo
Marshal Commander

Joined: Mar 28, 2003
Posts: 11567

Hi Marzo,

What are you trying to achieve here?

You can find out the IP address of the client, however if there is more than one client at that particular address then the information cannot be used to uniquely identify the client.

You can create your own unique identifiers for each client (that wont mean anything to the client - they will just mean something to you).

You can also have the clients register themselves as observers of your server, in which case you could have the server call client methods.

But these are all very different issues, so more information on what you are trying to achieve is needed .

Regards, Andrew

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It is sorta covered in the JavaRanch Style Guide.
subject: SCJD RMI Query