ch.elca.el4j.services.statistics.detailed.cache
Class LRUCache<K,E>

java.lang.Object
  ch.elca.el4j.services.statistics.detailed.cache.LRUCache<K,E>

Type Parameters:

K - Generic type of Key.

E - Generic type of Element.

public class LRUCache<K,E>
extends Object

This class is a simple, generic FIFO Cache restricted to a certain size.

Author:

David Stefan (DST)

File-location:

LRUCache

Last check-in date:

2009-08-04 15:17:52 +0200 (Di, 04. Aug 2009) by swismer for revision 3880

Constructor Summary

LRUCache(int cacheSize)
Creates a new LRU cache.

Method Summary

void	clear() Clear the cache.
E	get(K key) Get element out of cache.
Collection<E>	getAll() Get all elements of cache.
Set<K>	getKeys() Get all keys of bag.
void	put(K key, E element) Put element to cache.

Methods inherited from class java.lang.Object

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

Constructor Detail

LRUCache

public LRUCache(int cacheSize)

Creates a new LRU cache.

Parameters:

cacheSize - the maximum number of entries that will be kept in this cache.

Method Detail

put

public void put(K key,
                E element)

Put element to cache.

Parameters:

key - Key of element

element - Element to add

get

public E get(K key)

Get element out of cache.

Parameters:

key - Key of the element to get

Returns:

Element from cache

getAll

public Collection<E> getAll()

Get all elements of cache.

Returns:

Collection of all cache elements

getKeys

public Set<K> getKeys()

Get all keys of bag.

Returns:

key set of bag

clear

public void clear()

Clear the cache.