ePOST API

rice.p2p.past.messaging
Class LookupMessage

java.lang.Object
  extended by rice.p2p.past.messaging.PastMessage
      extended by rice.p2p.past.messaging.ContinuationMessage
          extended by rice.p2p.past.messaging.LookupMessage
All Implemented Interfaces:
java.io.Serializable, Continuation, Message

public class LookupMessage
extends ContinuationMessage

Version:
$Id: LookupMessage.java 2302 2005-03-11 00:58:26Z jeffh $
Author:
Alan Mislove, Ansley Post, Peter Druschel
See Also:
Serialized Form

Nested Class Summary
 
Nested classes/interfaces inherited from interface rice.Continuation
Continuation.ErrorContinuation, Continuation.ExternalContinuation, Continuation.ExternalContinuationRunnable, Continuation.ExternalRunnable, Continuation.ListenerContinuation, Continuation.MultiContinuation, Continuation.NamedContinuation, Continuation.SimpleContinuation, Continuation.StandardContinuation
 
Field Summary
 
Fields inherited from class rice.p2p.past.messaging.ContinuationMessage
exception, response
 
Fields inherited from class rice.p2p.past.messaging.PastMessage
dest, isResponse, source
 
Fields inherited from interface rice.p2p.commonapi.Message
HIGH_PRIORITY, LOW_PRIORITY, MEDIUM_HIGH_PRIORITY, MEDIUM_LOW_PRIORITY, MEDIUM_PRIORITY
 
Constructor Summary
LookupMessage(int uid, Id id, NodeHandle source, Id dest)
          Constructor
 
Method Summary
 void addHop(NodeHandle handle)
          Method which is designed to be overridden by subclasses if they need to keep track of where they've been.
 Id getId()
          Method which returns the id
 NodeHandle getPreviousNodeHandle()
          Method which returns the previous hop (where the message was just at)
 boolean isCached()
          Returns whether or not this message has been cached
 void setCached()
          Sets this message as having been cached.
 java.lang.String toString()
          Returns a string representation of this message
 
Methods inherited from class rice.p2p.past.messaging.ContinuationMessage
getResponse, receiveException, receiveResult, returnResponse
 
Methods inherited from class rice.p2p.past.messaging.PastMessage
getDestination, getPriority, getSource, getUID, isResponse, setResponse
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

LookupMessage

public LookupMessage(int uid,
                     Id id,
                     NodeHandle source,
                     Id dest)
Constructor

Parameters:
uid - The unique id
id - The location to be stored
useReplicas - Whether or not to look for nearest replicas
source - The source address
dest - The destination address
Method Detail

getId

public Id getId()
Method which returns the id

Returns:
The contained id

isCached

public boolean isCached()
Returns whether or not this message has been cached

Returns:
Whether or not this message has been cached

setCached

public void setCached()
Sets this message as having been cached.


addHop

public void addHop(NodeHandle handle)
Method which is designed to be overridden by subclasses if they need to keep track of where they've been.

Overrides:
addHop in class PastMessage
Parameters:
handle - The current local handle

getPreviousNodeHandle

public NodeHandle getPreviousNodeHandle()
Method which returns the previous hop (where the message was just at)

Returns:
The previous hop

toString

public java.lang.String toString()
Returns a string representation of this message

Overrides:
toString in class java.lang.Object
Returns:
A string representing this message

ePOST API

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