org.jgroups.protocols
Class TransportedVectorTime

java.lang.Object
  org.jgroups.protocols.TransportedVectorTime

All Implemented Interfaces:

java.io.Serializable

public class TransportedVectorTime
extends java.lang.Object
implements java.io.Serializable

Lighweight representation of the VectorTime clock suitable for network transport

Version:

$Revision: 1.8 $

Author:

Vladimir Blagojevic vladimir@cs.yorku.ca

See Also:

Serialized Form

Constructor Summary

TransportedVectorTime()

TransportedVectorTime(int senderIndex, int[] values)
Constructs TransportedVectorTime with sender index and vector values

Method Summary

boolean	equals(java.lang.Object other) Checks if this TransportedVectorTimeis equal to the specified TransportedVectorTime.
Message	getAssociatedMessage() Returns a message associated with this vector timestamp.
int	getSenderIndex() Returns sender index
int[]	getValues() Returns vector values
boolean	lessThanOrEqual(TransportedVectorTime other) Checks if this TransportedVectorTime is less than or equal to the the specified TransportedVectorTime.
void	setAssociatedMessage(Message owner) Sets a message associated with this vector timestamp
int	size() Returns size of this vector timestamp i.e number of process group members
java.lang.String	toString() Returns String representation of this vector timestamp

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

TransportedVectorTime

public TransportedVectorTime()

TransportedVectorTime

public TransportedVectorTime(int senderIndex,
                             int[] values)

Constructs TransportedVectorTime with sender index and vector values

Parameters:

senderIndex - index of the sender of the message

values - vector values

Method Detail

getSenderIndex

public int getSenderIndex()

Returns sender index

Returns:

sender index position

getValues

public int[] getValues()

Returns vector values

Returns:

an array of vector values

size

public int size()

Returns size of this vector timestamp i.e number of process group members

Returns:

vector timestamp size

setAssociatedMessage

public void setAssociatedMessage(Message owner)

Sets a message associated with this vector timestamp

Parameters:

owner - Message that is associated with this vector timestamp

getAssociatedMessage

public Message getAssociatedMessage()

Returns a message associated with this vector timestamp.

Returns:

Message associated with this vector timestamp

lessThanOrEqual

public boolean lessThanOrEqual(TransportedVectorTime other)

Checks if this TransportedVectorTime is less than or equal to the the specified TransportedVectorTime. The check is done as follows:

VT1<=VT2 iff for every i:1..k VT1[i]<=VT2[i]

Parameters:

other - TransportedVectorTimebeing compared with this.

Returns:

true if this TransportedVectorTimeis less than or equal from other, false othwerwise

equals

public boolean equals(java.lang.Object other)

Checks if this TransportedVectorTimeis equal to the specified TransportedVectorTime. The check is done as follows:

VT1==VT2 iff for every i:1..k VT1[i]==VT2[i]

Overrides:

equals in class java.lang.Object

Parameters:

other - TransportedVectorTimebeing compared with this.

Returns:

true if the equation given above is true, false otherwise

toString

public java.lang.String toString()

Returns String representation of this vector timestamp

Overrides:

toString in class java.lang.Object

Returns:

String representing this vetor timestamp