Java RMI的UnicastRemoteObject

Question

I am currently practicing the implementation of RMI in Java. One of the requirements is to create a class that extends the UnicastRemoteObject which contains functions that can be called remotely.

I'd like to know if the class that extends the UnicastRemoteObject is shared by all connected clients. What I mean by sharing is that, is the instance object created from the class that extends the UnicastRemoteObject is concurrently used by connected clients?

Answer 1

It depends how you use it. Normally if that's the only remote object, you would register a single instance of it in the RMI Registry, then the clients look it up and call methods on it, and they are all sharing the same instance. However if you look at this question and answer you will see how to allocate one per client, if that's your requirement.