Package org.shoal.ha.mapper

Class DefaultKeyMapper

java.lang.Object

org.shoal.ha.mapper.DefaultKeyMapper

All Implemented Interfaces:

GroupMemberEventListener, KeyMapper

public class DefaultKeyMapper
extends Object
implements KeyMapper, GroupMemberEventListener

Author:

Mahesh Kannan

Constructor Summary

Constructors

Constructor	Description
DefaultKeyMapper(String myName, String groupName)

Method Summary

Modifier and Type	Method	Description
String[]	findReplicaInstance(String groupName, Object key1, String keyMappingInfo)
String[]	getCurrentMembers()
String	getMappedInstance(String groupName, Object key1)
protected String[]	getMembers()
protected ReentrantReadWriteLock.ReadLock	getReadLock()
String	getReplicaChoices(String groupName, Object key)
protected ReentrantReadWriteLock.WriteLock	getWriteLock()
void	onViewChange(String memberName, Collection<String> readOnlyCurrentAliveAndReadyMembers, Collection<String> readOnlyPreviousAliveAndReadyMembers, boolean isJoinEvent)
void	printMemberStates(String message)

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultKeyMapper

public DefaultKeyMapper(String myName,
                        String groupName)

Method Detail

getReadLock

protected ReentrantReadWriteLock.ReadLock getReadLock()

getWriteLock

protected ReentrantReadWriteLock.WriteLock getWriteLock()

getMembers

protected String[] getMembers()

getMappedInstance

public String getMappedInstance(String groupName,
                                Object key1)

Specified by:

getMappedInstance in interface KeyMapper

getReplicaChoices

public String getReplicaChoices(String groupName,
                                Object key)

Specified by:

getReplicaChoices in interface KeyMapper

getCurrentMembers

public String[] getCurrentMembers()

Specified by:

getCurrentMembers in interface KeyMapper

findReplicaInstance

public String[] findReplicaInstance(String groupName,
                                    Object key1,
                                    String keyMappingInfo)

Specified by:

findReplicaInstance in interface KeyMapper

onViewChange

public void onViewChange(String memberName,
                         Collection<String> readOnlyCurrentAliveAndReadyMembers,
                         Collection<String> readOnlyPreviousAliveAndReadyMembers,
                         boolean isJoinEvent)

Specified by:

onViewChange in interface GroupMemberEventListener

printMemberStates

public void printMemberStates(String message)