org.neo4j.kernel.impl.cache
Class WeakLruCache<K,V>

java.lang.Object
  org.neo4j.kernel.impl.cache.ReferenceCache<K,V>
      org.neo4j.kernel.impl.cache.WeakLruCache<K,V>

All Implemented Interfaces:

Cache<K,V>

public class WeakLruCache<K,V>
extends ReferenceCache<K,V>

Constructor Summary

WeakLruCache(String name)

Method Summary

void	clear() Removing all cached elements.
void	elementCleaned(V value)
V	get(K key) Returns the cached element for key.
String	getName() Returns the name of the cache.
long	hitCount()
boolean	isAdaptive()
int	maxSize()
long	missCount()
protected void	pollClearedValues()
void	put(K key, V value) Adds element to cache.
void	putAll(Map<K,V> map)
V	remove(K key) Removes the element for key from cache and returns it.
void	resize(int newSize)
void	setAdaptiveStatus(boolean status)
int	size() Returns the cache size.

Methods inherited from class java.lang.Object

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

Constructor Detail

WeakLruCache

public WeakLruCache(String name)

Method Detail

put

public void put(K key,
                V value)

Description copied from interface: Cache

Adds element to cache.

Parameters:

key - the key for the element

putAll

public void putAll(Map<K,V> map)

get

public V get(K key)

Description copied from interface: Cache

Returns the cached element for key. If the element isn't in cache null is returned.

Parameters:

key - the key for the element

Returns:

the cached element or null if element didn't exist

remove

public V remove(K key)

Description copied from interface: Cache

Removes the element for key from cache and returns it. If the no element for key exists null is returned.

Parameters:

key - the key for the element

Returns:

the removed element or null if element didn't exist

pollClearedValues

protected void pollClearedValues()

Specified by:

pollClearedValues in class ReferenceCache<K,V>

size

public int size()

Description copied from interface: Cache

Returns the cache size.

Returns:

cache size

clear

public void clear()

Description copied from interface: Cache

Removing all cached elements.

hitCount

public long hitCount()

missCount

public long missCount()

elementCleaned

public void elementCleaned(V value)

getName

public String getName()

Description copied from interface: Cache

Returns the name of the cache.

Returns:

name of the cache

isAdaptive

public boolean isAdaptive()

maxSize

public int maxSize()

resize

public void resize(int newSize)

setAdaptiveStatus

public void setAdaptiveStatus(boolean status)