org.ldaptive.cache
Class LRUCache<Q extends SearchRequest>

java.lang.Object
  org.ldaptive.cache.LRUCache<Q>

Type Parameters:

Q - type of search request

All Implemented Interfaces:

Cache<Q>

public class LRUCache<Q extends SearchRequest>
extends Object
implements Cache<Q>

Least-Recently-Used cache implementation. Leverages a LinkedHashMap.

Version:

$Revision: 2885 $ $Date: 2014-02-05 16:28:49 -0500 (Wed, 05 Feb 2014) $

Author:

Middleware Services

Constructor Summary

LRUCache(int size, long timeToLive, long interval)
Creates a new LRU cache.

Method Summary

void	clear() Removes all data from this cache.
void	close() Frees any resources associated with this cache.
SearchResult	get(Q request) Returns the ldap result for the supplied request.
void	put(Q request, SearchResult result) Stores the ldap result for the supplied request.
int	size() Returns the number of items in this 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 size,
                long timeToLive,
                long interval)

Creates a new LRU cache.

Parameters:

size - number of results to cache

timeToLive - in seconds that results should stay in the cache

interval - in seconds to enforce timeToLive

Method Detail

clear

public void clear()

Removes all data from this cache.

get

public SearchResult get(Q request)

Returns the ldap result for the supplied request.

Specified by:

get in interface Cache<Q extends SearchRequest>

Parameters:

request - to find ldap result with

Returns:

ldap result

put

public void put(Q request,
                SearchResult result)

Stores the ldap result for the supplied request.

Specified by:

put in interface Cache<Q extends SearchRequest>

Parameters:

request - used to find ldap result

result - found with request

size

public int size()

Returns the number of items in this cache.

Returns:

size of this cache

close

public void close()

Frees any resources associated with this cache.