org.jgroups
Interface MessageListener

All Known Subinterfaces:
Receiver
All Known Implementing Classes:
Chat, DistributedHashtable, DistributedQueue, DistributedTree, MessageListenerAdapter, NotificationBus, QuoteServer, ReceiverAdapter, ReplicatedHashtable, ReplicatedTree, VotingAdapter, Whiteboard

public interface MessageListener

Allows a listener to be notified when a message arrives. Contrary to the pull-style of channels, some building blocks (e.g., PullPushAdapter) provide an event-like, push-style message delivery model. In this case, the entity to be notified of message reception needs to provide a callback to be invoked whenever a message has been received. The MessageListener interface provides a method to do so.


Method Summary
 byte[] getState()
          Answers the group state; e.g., when joining.
 void receive(Message msg)
          Called when a message is received.
 void setState(byte[] state)
          Sets the group state; e.g., when joining.
 

Method Detail

receive

void receive(Message msg)
Called when a message is received.

Parameters:
msg -

getState

byte[] getState()
Answers the group state; e.g., when joining.

Returns:
byte[]

setState

void setState(byte[] state)
Sets the group state; e.g., when joining.

Parameters:
state -


Copyright ? 1998-2005 Bela Ban. All Rights Reserved.