org.javagroups.protocols
Class LOOPBACK

java.lang.Object
  |
  +--org.javagroups.stack.Protocol
        |
        +--org.javagroups.protocols.LOOPBACK

public class LOOPBACK
extends Protocol

Makes copies of outgoing messages, swaps sender and receiver and sends the message back up the stack.


Fields inherited from class org.javagroups.stack.Protocol
down_handler, down_prot, down_queue, down_thread, observer, props, stack, up_handler, up_prot, up_queue, up_thread
 
Constructor Summary
LOOPBACK()
           
 
Method Summary
 void down(Event evt)
          Caller by the layer above this layer.
 java.lang.String getName()
           
 boolean setProperties(java.util.Properties props)
          Setup the Protocol instance acording to the configuration string
 java.lang.String toString()
           
 void up(Event evt)
          An event was received from the layer below.
 
Methods inherited from class org.javagroups.stack.Protocol
getDownProtocol, getDownQueue, getProperties, getUpProtocol, getUpQueue, init, passDown, passUp, providedDownServices, providedUpServices, receiveDownEvent, receiveUpEvent, requiredDownServices, requiredUpServices, setDownProtocol, setObserver, setPropertiesInternal, setProtocolStack, setUpProtocol, startDownHandler, startUpHandler, stopInternal
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

LOOPBACK

public LOOPBACK()
Method Detail

toString

public java.lang.String toString()
Overrides:
toString in class java.lang.Object

getName

public java.lang.String getName()
Overrides:
getName in class Protocol

setProperties

public boolean setProperties(java.util.Properties props)
Setup the Protocol instance acording to the configuration string
Overrides:
setProperties in class Protocol

up

public void up(Event evt)
Description copied from class: Protocol
An event was received from the layer below. Usually the current layer will want to examine the event type and - depending on its type - perform some computation (e.g. removing headers from a MSG event type, or updating the internal membership list when receiving a VIEW_CHANGE event). Finally the event is either a) discarded, or b) an event is sent down the stack using passDown() or c) the event (or another event) is sent up the stack using passUp().
Overrides:
up in class Protocol

down

public void down(Event evt)
Caller by the layer above this layer. Usually we just put this Message into the send queue and let one or more worker threads handle it. A worker thread then removes the Message from the send queue, performs a conversion and adds the modified Message to the send queue of the layer below it, by calling Down).
Overrides:
down in class Protocol


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