org.jboss.cache.buddyreplication
Class NextMemberBuddyLocator

java.lang.Object
  org.jboss.cache.buddyreplication.NextMemberBuddyLocator

All Implemented Interfaces:

BuddyLocator

public class NextMemberBuddyLocator
extends java.lang.Object
implements BuddyLocator

This buddy locator uses a next-in-line algorithm to select buddies for a buddy group. This algorithm allows for the following properties, all of which are optional.

• More than one buddy per group - the numBuddies property, defaulting to 1 if ommitted.
• Ability to skip buddies on the same host when selecting buddies - the ignoreColocatedBuddies property, defaulting to true if ommitted. Note that this is just a hint though, and if all nstances in a cluster are colocated, the algorithm will be forced to pick a colocated instance even if this is property set to true.

Author:

Manik Surtani (manik@jboss.org)

Constructor Summary

NextMemberBuddyLocator()

Method Summary

void	init(java.util.Properties props)
java.util.List	locateBuddies(java.util.Map buddyPoolMap, java.util.List currentMembership, org.jgroups.stack.IpAddress dataOwner)

Methods inherited from class java.lang.Object

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

Constructor Detail

NextMemberBuddyLocator

public NextMemberBuddyLocator()

Method Detail

init

public void init(java.util.Properties props)

Specified by:

init in interface BuddyLocator

locateBuddies

public java.util.List locateBuddies(java.util.Map buddyPoolMap,
                                    java.util.List currentMembership,
                                    org.jgroups.stack.IpAddress dataOwner)

Specified by:

locateBuddies in interface BuddyLocator