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:

java.io.Serializable, Continuation, Message, RawMessage

Direct Known Subclasses:

MyMsg

public class LookupMessage
extends ContinuationMessage

Version:

$Id: LookupMessage.java 3524 2007-01-09 14:09:27Z 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

static short

TYPE

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, LOWEST_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)
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) Deprecated to cause warnings.
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

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

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

getType

public short getType()

Raw Serialization

serialize

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

Description copied from class: ContinuationMessage

Deprecated to cause warnings. use serialize(OutputBuffer buf, boolean javaSerialize)

Specified by:

serialize in interface RawMessage

Specified by:

serialize in class ContinuationMessage

Throws:

java.io.IOException

build

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

Throws:

java.io.IOException