org.jgroups.stack

Class AckMcastReceiverWindow

java.lang.Object

org.jgroups.stack.AckMcastReceiverWindow

public class AckMcastReceiverWindow
extends Object

Keeps track of messages received from various senders. Acks each message received and checks whether it was already delivered. If yes, the message is discarded, otherwise it is delivered (passed up). The messages contain sequence numbers of old messages to be deleted, those are removed from the message table.

Author:

Bela Ban June 17 1999

Field Summary

Fields

Modifier and Type	Field and Description
protected static Log	log

Constructor Summary

Constructors

Constructor and Description
AckMcastReceiverWindow()

Method Summary

Modifier and Type	Method and Description
boolean	add(Object sender, long seqno) Records the sender/seqno pair in the message table
static void	main(String[] args)
void	remove(Object sender, Vector seqnos)
void	removeAll()
void	reset()
long	size()
void	suspect(Object sender)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

log

protected static final Log log

Constructor Detail

AckMcastReceiverWindow

public AckMcastReceiverWindow()

Method Detail

add

public boolean add(Object sender,
                   long seqno)

Records the sender/seqno pair in the message table

Parameters:

sender - The sender of the message

seqno - The sequence number associated with the message

Returns:

boolean If false, message is already present. Otherwise true.

remove

public void remove(Object sender,
                   Vector seqnos)

size

public long size()

reset

public void reset()

removeAll

public void removeAll()

suspect

public void suspect(Object sender)

toString

public String toString()

Overrides:

toString in class Object

main

public static void main(String[] args)
                 throws UnknownHostException

Throws:

UnknownHostException