MessageDispatcher

This class is used on top of a channel and allows one to broadcast requests (in the form of messages) to all or single group members and to optionally wait for the response(s). It is the application-level equivalent of MessageProtocol (see 4.3.1 for a detailed discussion). Applications need to implement the RequestHandler interface by implementing method Handle which is called whenever a request has been received. The return value will be sent back to the sender of the request as response.

MessageDispatcher uses both a RequestCorrelator and GroupRequest to implement its functionality.