I am new to RMI and I want to implement the RMI callback function. In other words, I have client A and server B, B is listening and waiting for some events from somewhere. What I want to do is when I received the events, I put them in the hashtable, at the same time, I make the client callback to push the data to client. How can I make the server programs? Do I have to implement the Thread in the server? Is it an only way to do this? Can I add a listener to hashtable, whenever it changed, I make the client callback?

Thanks in advance,

Peter