public interface MessageHandler<E>
DemuxingIoHandler forwards
 messageReceived events to.  You have to register your
 handler with the type of message you want to get notified using
 DemuxingIoHandler.addMessageHandler(Class, MessageHandler).| 限定符和类型 | 字段和说明 | 
|---|---|
| static MessageHandler<java.lang.Object> | NOOPA  MessageHandlerthat does nothing. | 
| 限定符和类型 | 方法和说明 | 
|---|---|
| void | messageReceived(IoSession session,
               E message)Invoked when the specific type of message is received from the
 specified  session. | 
static final MessageHandler<java.lang.Object> NOOP
MessageHandler that does nothing.  This is usefule when
 you want to ignore messages of the specific type silently.