org.jgroups.stack

Class LargestWinningPolicy

java.lang.Object

org.jgroups.protocols.pbcast.GMS.DefaultMembershipPolicy

org.jgroups.stack.LargestWinningPolicy

All Implemented Interfaces:

MembershipChangePolicy

public class LargestWinningPolicy
extends GMS.DefaultMembershipPolicy

Policy which picks the new coordinator in a merge from the largest subview. JIRA: https://issues.jboss.org/browse/JGRP-1976

Since:

3.6.7

Author:

Osamu Nagano

Constructor Summary

Constructors

Constructor and Description
LargestWinningPolicy()

Method Summary

Modifier and Type	Method and Description
java.util.List<Address>	getNewMembership(java.util.Collection<java.util.Collection<Address>> subviews) Called when a merge happened.

Methods inherited from class org.jgroups.protocols.pbcast.GMS.DefaultMembershipPolicy

getNewMembership, getNewMembershipOld

Methods inherited from class java.lang.Object

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

Constructor Detail

LargestWinningPolicy

public LargestWinningPolicy()

Method Detail

getNewMembership

public java.util.List<Address> getNewMembership(java.util.Collection<java.util.Collection<Address>> subviews)

Called when a merge happened. The largest subview wins.

Specified by:

getNewMembership in interface MembershipChangePolicy

Overrides:

getNewMembership in class GMS.DefaultMembershipPolicy

Parameters:

subviews - A list of membership lists, e.g. [{A,B,C}, {M,N,O,P}, {X,Y,Z}]. This is a merge between 3 subviews. Guaranteed to be non-null (but may be empty)

Returns:

The new membership. Needs to be non-null and cannot contain duplicates