planet.symphony.behaviours
Class QueryJoinBehaviour

java.lang.Object
  extended by planet.symphony.behaviours.QueryJoinBehaviour
All Implemented Interfaces:
Behaviour

public class QueryJoinBehaviour
extends java.lang.Object
implements Behaviour

This behaviour accepts QUERY_JOIN requests. The node which receives the QUERY_JOIN request is the immediate successor of the newbie's Id. Hence, it handles incoming JOIN requests. It sends a SET_INFO message to newbie with its neighbour's Set.

Author:
Marc Sanchez , Helio Tejedor

Constructor Summary
QueryJoinBehaviour()
           
 
Method Summary
 java.lang.String getName()
           
 RouteMessage[] onMessage(RouteMessage msg, Node node)
          Given a RouteMessage and a Node as input, onMessage's method do execution steps for the behaviour.
 java.lang.String toString()
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

QueryJoinBehaviour

public QueryJoinBehaviour()
Method Detail

onMessage

public RouteMessage[] onMessage(RouteMessage msg,
                                Node node)
Given a RouteMessage and a Node as input, onMessage's method do execution steps for the behaviour. Node should be casted to Node's class in order to manage data structures and protocol of designed overlay.

Specified by:
onMessage in interface Behaviour
Parameters:
msg - RouteMessage taken as input.
node - Node taken as input.
Returns:
Returns either an array of RouteMessages or null when no messages need to transmit this node.

getName

public java.lang.String getName()
Specified by:
getName in interface Behaviour
Returns:
Returns the name of behaviour.

toString

public java.lang.String toString()
Specified by:
toString in interface Behaviour
Overrides:
toString in class java.lang.Object
Returns:
Returns a string representation of the behaviour. In general, the toString method returns a string that "textually represents" this behaviour. The result should be a concise but informative representation that is easy for a person to read.