infoservice.agreement.paxos.integration
Class PaxosRejectManager

java.lang.Object
  infoservice.agreement.paxos.PaxosObject
      infoservice.agreement.paxos.integration.PaxosRejectManager

public class PaxosRejectManager
extends PaxosObject

Field Summary

private PaxosInstance	m_paxosInstance
private java.util.Hashtable	m_rejectCount
private java.util.Hashtable	m_rejectMessages

Constructor Summary

PaxosRejectManager(PaxosInstance a_paxosInstance)
Creates a new RejectManager for the given PaxosInstance

Method Summary

boolean	addRejectMessage(PaxosMessage a_msg) Handles an incomming RejectMessage
java.lang.String	getMajorityReject() Returns the majorities lastCommonRandom if it exists, otherwise null
int	getRejectMessageCount() Returns the number of received RejectMessages
boolean	isMajorityPossible() Indicates if a majority of RejectMessages for some new roundnumber is still possible

Methods inherited from class infoservice.agreement.paxos.PaxosObject

debug, error, fatal, getLog, info, setLog

Methods inherited from class java.lang.Object

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

Field Detail

m_paxosInstance

private PaxosInstance m_paxosInstance

m_rejectMessages

private java.util.Hashtable m_rejectMessages

m_rejectCount

private java.util.Hashtable m_rejectCount

Constructor Detail

PaxosRejectManager

public PaxosRejectManager(PaxosInstance a_paxosInstance)

Creates a new RejectManager for the given PaxosInstance

Parameters:

a_paxosInstance -

Method Detail

addRejectMessage

public boolean addRejectMessage(PaxosMessage a_msg)

Handles an incomming RejectMessage

Parameters:

a_msg - The message to be handled

Returns:

true if the message has been added, false otherwise

getRejectMessageCount

public int getRejectMessageCount()

Returns the number of received RejectMessages

Returns:

The number of received RejectMessages

isMajorityPossible

public boolean isMajorityPossible()

Indicates if a majority of RejectMessages for some new roundnumber is still possible

Returns:

true if a majority of RejectMessages for some new roundnumber is still possible, false otherwise

getMajorityReject

public java.lang.String getMajorityReject()

Returns the majorities lastCommonRandom if it exists, otherwise null

Returns:

The majorities lastCommonRandom if it exists, otherwise null