com.caucho.util
Class FlatCache<K,V>

java.lang.Object
  com.caucho.util.FlatCache<K,V>

public class FlatCache<K,V>
extends java.lang.Object

Fixed length cache with a LRU replacement policy. If cache items implement CacheListener, they will be informed when they're removed from the cache.

Null keys are not allowed. LruCache is synchronized.

Constructor Summary

FlatCache(int initialCapacity)

Method Summary

void	clear() Clears the cache
java.lang.Object	get(K key) Get an item from the cache and make it most recently used.
V	put(K key, V value) Puts a new item in the cache.
V	remove(K key) Removes an item from the cache

Methods inherited from class java.lang.Object

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

Constructor Detail

FlatCache

public FlatCache(int initialCapacity)

Method Detail

clear

public void clear()

Clears the cache

get

public java.lang.Object get(K key)

Get an item from the cache and make it most recently used.

Parameters:

key - key to lookup the item

Returns:

the matching object in the cache

put

public V put(K key,
             V value)

Puts a new item in the cache. If the cache is full, remove the LRU item.

Parameters:

key - key to store data

value - value to be stored

Returns:

old value stored under the key

remove

public V remove(K key)

Removes an item from the cache

Parameters:

key - the key to remove

Returns:

the value removed