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

java.lang.Object
  extended by com.nostra13.universalimageloader.cache.memory.impl.LimitedAgeMemoryCache<K,V>
All Implemented Interfaces:
MemoryCacheAware<K,V>

public class LimitedAgeMemoryCache<K,V>
extends java.lang.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.
 java.util.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 java.util.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>


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