com.continuent.tungsten.common.cache
Class CacheNode<T>

java.lang.Object
  com.continuent.tungsten.common.cache.CacheNode<T>

public class CacheNode<T>
extends java.lang.Object

Node for a single entry in an indexed LRU cache. The node contains threaded references to earlier and later nodes in the LRU list.

Author:

Robert Hodges

Constructor Summary

CacheNode(java.lang.String key, T value)
Create node and set initial access time.

Method Summary

T	get() Return the node value.
CacheNode<T>	getAfter() Return the after (older) node in the LRU list.
CacheNode<T>	getBefore() Return the before (newer) node or null in LRU list.
java.lang.String	getKey()
long	getLastAccessMillis() Returns time of last access.
void	release() Release resources associated with the value.
void	setAfter(CacheNode<T> next) Set the after node in the LRU list.
void	setBefore(CacheNode<T> previous) Set the before node in the LRU list.

Methods inherited from class java.lang.Object

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

Constructor Detail

CacheNode

public CacheNode(java.lang.String key,
                 T value)

Create node and set initial access time.

Method Detail

release

public void release()

Release resources associated with the value. Must be overridden by clients to implement type-specific resource management. The node is unusable after this call.

getKey

public java.lang.String getKey()

get

public T get()

Return the node value.

getLastAccessMillis

public long getLastAccessMillis()

Returns time of last access.

getBefore

public CacheNode<T> getBefore()

Return the before (newer) node or null in LRU list.

setBefore

public void setBefore(CacheNode<T> previous)

Set the before node in the LRU list.

getAfter

public CacheNode<T> getAfter()

Return the after (older) node in the LRU list.

setAfter

public void setAfter(CacheNode<T> next)

Set the after node in the LRU list.