com.nostra13.universalimageloader.cache.memory.impl
Class LRULimitedMemoryCache

java.lang.Object
  com.nostra13.universalimageloader.cache.memory.BaseMemoryCache<K,V>
      com.nostra13.universalimageloader.cache.memory.LimitedMemoryCache<String,android.graphics.Bitmap>
          com.nostra13.universalimageloader.cache.memory.impl.LRULimitedMemoryCache

All Implemented Interfaces:

MemoryCacheAware<String,android.graphics.Bitmap>

public class LRULimitedMemoryCache
extends LimitedMemoryCache<String,android.graphics.Bitmap>

Limited bitmap cache. Provides bitmaps storing. Size of all stored bitmaps will not to exceed size limit. When cache reaches limit size then the least recently used bitmap is deleted from cache.

NOTE: This cache uses strong and weak references for stored Bitmaps. Strong references - for limited count of Bitmaps (depends on cache size), weak references - for all other cached Bitmaps.

Since:

1.3.0

Author:

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

Constructor Summary

LRULimitedMemoryCache(int maxSize)

Method Summary

void	clear() Remove all items from cache
protected Reference<android.graphics.Bitmap>	createReference(android.graphics.Bitmap value) Creates not strong reference of value
android.graphics.Bitmap	get(String key) Returns value by key.
protected int	getSize(android.graphics.Bitmap value)
boolean	put(String key, android.graphics.Bitmap value) Puts value into cache by key
void	remove(String key) Removes item by key
protected android.graphics.Bitmap	removeNext()

Methods inherited from class com.nostra13.universalimageloader.cache.memory.LimitedMemoryCache

getSizeLimit

Methods inherited from class com.nostra13.universalimageloader.cache.memory.BaseMemoryCache

keys

Methods inherited from class java.lang.Object

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

Constructor Detail

LRULimitedMemoryCache

public LRULimitedMemoryCache(int maxSize)

Parameters:

maxSize - Maximum sum of the sizes of the Bitmaps in this cache

Method Detail

put

public boolean put(String key,
                   android.graphics.Bitmap value)

Description copied from interface: MemoryCacheAware

Puts value into cache by key

Specified by:

put in interface MemoryCacheAware<String,android.graphics.Bitmap>

Overrides:

put in class LimitedMemoryCache<String,android.graphics.Bitmap>

Returns:

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

get

public android.graphics.Bitmap get(String 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<String,android.graphics.Bitmap>

Overrides:

get in class BaseMemoryCache<String,android.graphics.Bitmap>

remove

public void remove(String key)

Description copied from interface: MemoryCacheAware

Removes item by key

Specified by:

remove in interface MemoryCacheAware<String,android.graphics.Bitmap>

Overrides:

remove in class LimitedMemoryCache<String,android.graphics.Bitmap>

clear

public void clear()

Description copied from interface: MemoryCacheAware

Remove all items from cache

Specified by:

clear in interface MemoryCacheAware<String,android.graphics.Bitmap>

Overrides:

clear in class LimitedMemoryCache<String,android.graphics.Bitmap>

getSize

protected int getSize(android.graphics.Bitmap value)

Specified by:

getSize in class LimitedMemoryCache<String,android.graphics.Bitmap>

removeNext

protected android.graphics.Bitmap removeNext()

Specified by:

removeNext in class LimitedMemoryCache<String,android.graphics.Bitmap>

createReference

protected Reference<android.graphics.Bitmap> createReference(android.graphics.Bitmap value)

Description copied from class: BaseMemoryCache

Creates not strong reference of value

Specified by:

createReference in class BaseMemoryCache<String,android.graphics.Bitmap>