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How does server call clinet methods?

Elven Cao
Greenhorn

Joined: Sep 02, 2003
Posts: 2
I want to pass data between server and client. In RMI, client can call remote server methods, but how can server call client methods?
Michael Ernest
High Plains Drifter
Sheriff

Joined: Oct 25, 2000
Posts: 7292

By reversing the normal process of passing a stub.
A server isn't so much a machine or a process -- it's a role that a program can play in a distributed environment. In this sense with RMI, a server is any process that exports a stub that can be passed to a client for use. A client is any process that is "aware" of the service interface and will use the stub to call on a server's methods.
A typical scenario might look like this:
1) One client process calls a server process and gets a stub.
2) The "initial client" passes a stub to the "initial server" as a parameter via one of the server's exported methods.
3) The initial server calls on the initial client via one of its exported methods, passing data as a parameter.
High-level view, but I hope it gives you the gist.


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