Package net.rubyeye.xmemcached.impl

Class ArrayMemcachedSessionLocator

java.lang.Object

net.rubyeye.xmemcached.impl.AbstractMemcachedSessionLocator

net.rubyeye.xmemcached.impl.ArrayMemcachedSessionLocator

All Implemented Interfaces:

MemcachedSessionLocator

public class ArrayMemcachedSessionLocator
extends AbstractMemcachedSessionLocator

Session locator base on hash(key) mod sessions.size().Standard hash strategy

Field Summary

Fields

Modifier and Type	Field	Description
private HashAlgorithm	hashAlgorighm
(package private) java.util.Random	rand
private java.util.List<java.util.List<Session>>	sessions

Fields inherited from class net.rubyeye.xmemcached.impl.AbstractMemcachedSessionLocator

failureMode

Constructor Summary

Constructors

Constructor	Description
ArrayMemcachedSessionLocator()
ArrayMemcachedSessionLocator(HashAlgorithm hashAlgorighm)

Method Summary

Modifier and Type	Method	Description
long	getHash(int size, java.lang.String key)
long	getNext(int size, long start)
private Session	getRandomSession(java.util.List<Session> sessions)
Session	getSessionByKey(java.lang.String key)	Returns a session by special key.
void	setHashAlgorighm(HashAlgorithm hashAlgorighm)
void	updateSessions(java.util.Collection<Session> list)	Update sessions when session was added or removed.

Methods inherited from class net.rubyeye.xmemcached.impl.AbstractMemcachedSessionLocator

setFailureMode

Methods inherited from class java.lang.Object

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

Field Detail

hashAlgorighm

private HashAlgorithm hashAlgorighm

sessions

private transient volatile java.util.List<java.util.List<Session>> sessions

rand

final java.util.Random rand

Constructor Detail

ArrayMemcachedSessionLocator

public ArrayMemcachedSessionLocator()

ArrayMemcachedSessionLocator

public ArrayMemcachedSessionLocator(HashAlgorithm hashAlgorighm)

Method Detail

setHashAlgorighm

public final void setHashAlgorighm(HashAlgorithm hashAlgorighm)

getHash

public final long getHash(int size,
                          java.lang.String key)

getSessionByKey

public final Session getSessionByKey(java.lang.String key)

Description copied from interface: MemcachedSessionLocator

Returns a session by special key.

Returns:

getRandomSession

private Session getRandomSession(java.util.List<Session> sessions)

getNext

public final long getNext(int size,
                          long start)

updateSessions

public final void updateSessions(java.util.Collection<Session> list)

Description copied from interface: MemcachedSessionLocator

Update sessions when session was added or removed.

Parameters:

list - The newer sessions