com.nostra13.universalimageloader.cache.memory.impl
Class LimitedAgeMemoryCache<K,V>

java.lang.Object
  com.nostra13.universalimageloader.cache.memory.impl.LimitedAgeMemoryCache<K,V>

All Implemented Interfaces:

MemoryCacheAware<K,V>

public class LimitedAgeMemoryCache<K,V>
extends Object
implements MemoryCacheAware<K,V>

Decorator for MemoryCacheAware. Provides special feature for cache: if some cached object age exceeds defined value then this object will be removed from cache.

Since:

1.3.1

Author:

Sergey Tarasevich (nostra13[at]gmail[dot]com)

See Also:

MemoryCacheAware

Constructor Summary

LimitedAgeMemoryCache(MemoryCacheAware<K,V> cache, long maxAge)

Method Summary

void	clear() Remove all items from cache
V	get(K key) Returns value by key.
Collection<K>	keys() Returns all keys of cache
boolean	put(K key, V value) Puts value into cache by key
void	remove(K key) Removes item by key

Methods inherited from class java.lang.Object

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

Constructor Detail

LimitedAgeMemoryCache

public LimitedAgeMemoryCache(MemoryCacheAware<K,V> cache,
                             long maxAge)

Parameters:

cache - Wrapped memory cache

maxAge - Max object age (in seconds). If object age will exceed this value then it'll be removed from cache on next treatment (and therefore be reloaded).

Method Detail

put

public boolean put(K key,
                   V value)

Description copied from interface: MemoryCacheAware

Puts value into cache by key

Specified by:

put in interface MemoryCacheAware<K,V>

Returns:

true - if value was put into cache successfully, false - if value was not put into cache

get

public V get(K key)

Description copied from interface: MemoryCacheAware

Returns value by key. If there is no value for key then null will be returned.

Specified by:

get in interface MemoryCacheAware<K,V>

remove

public void remove(K key)

Description copied from interface: MemoryCacheAware

Removes item by key

Specified by:

remove in interface MemoryCacheAware<K,V>

keys

public Collection<K> keys()

Description copied from interface: MemoryCacheAware

Returns all keys of cache

Specified by:

keys in interface MemoryCacheAware<K,V>

clear

public void clear()

Description copied from interface: MemoryCacheAware

Remove all items from cache

Specified by:

clear in interface MemoryCacheAware<K,V>