rice.p2p.past.messaging
Class LookupMessage

java.lang.Object
  rice.p2p.past.messaging.PastMessage
      rice.p2p.past.messaging.ContinuationMessage
          rice.p2p.past.messaging.LookupMessage

All Implemented Interfaces:

Continuation, Message, RawMessage, java.io.Serializable

public class LookupMessage

extends ContinuationMessage

Version:

$Id: LookupMessage.java 3274 2006-05-15 16:17:47Z jeffh $

Author:

Alan Mislove, Ansley Post, Peter Druschel

See Also:

Serialized Form

Nested Class Summary

Nested classes inherited from class rice.Continuation

Continuation.ErrorContinuation, Continuation.ExternalContinuation, Continuation.ExternalContinuationRunnable, Continuation.ExternalRunnable, Continuation.ListenerContinuation, Continuation.MultiContinuation, Continuation.NamedContinuation, Continuation.SimpleContinuation, Continuation.StandardContinuation

Field Summary

static short

TYPE DESCRIBE THE FIELD

Fields inherited from class rice.p2p.past.messaging.ContinuationMessage

exception, response, S_EMPTY, S_JAVA_EXCEPTION, S_JAVA_RESPONSE, S_SUB, serType

Fields inherited from class rice.p2p.past.messaging.PastMessage

dest, isResponse, source

Fields inherited from interface rice.p2p.commonapi.Message

HIGH_PRIORITY, LOW_PRIORITY, MAX_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.
static LookupMessage	build(InputBuffer buf, Endpoint endpoint, PastContentDeserializer pcd) DESCRIBE THE METHOD
Id	getId() Method which returns the id
NodeHandle	getPreviousNodeHandle() Method which returns the previous hop (where the message was just at)
short	getType() Raw Serialization **************************************
boolean	isCached() Returns whether or not this message has been cached
void	serialize(OutputBuffer buf) DESCRIBE THE METHOD
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

deserialize, getResponse, receiveException, receiveResult, returnResponse, serialize

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

Field Detail

TYPE

public static final short TYPE

DESCRIBE THE FIELD

See Also:

Constant Field Values

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

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

getPreviousNodeHandle

public NodeHandle getPreviousNodeHandle()

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

Returns:

The previous hop

getType

public short getType()

Raw Serialization **************************************

Returns:

The Type value

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

toString

public java.lang.String toString()

Returns a string representation of this message

Returns:

A string representing this message

serialize

public void serialize(OutputBuffer buf)
               throws java.io.IOException

DESCRIBE THE METHOD

Specified by:

serialize in interface RawMessage

Overrides:

serialize in class ContinuationMessage

Parameters:

buf - DESCRIBE THE PARAMETER

Throws:

java.io.IOException - DESCRIBE THE EXCEPTION

build

public static LookupMessage build(InputBuffer buf,
                                  Endpoint endpoint,
                                  PastContentDeserializer pcd)
                           throws java.io.IOException

DESCRIBE THE METHOD

Parameters:

buf - DESCRIBE THE PARAMETER

endpoint - DESCRIBE THE PARAMETER

pcd - DESCRIBE THE PARAMETER

Returns:

DESCRIBE THE RETURN VALUE

Throws:

java.io.IOException - DESCRIBE THE EXCEPTION