de.hybris.platform.regioncache.region.impl

Class DefaultCacheMap

java.lang.Object

de.hybris.platform.regioncache.region.impl.DefaultCacheMap

All Implemented Interfaces:

CacheMap

public class DefaultCacheMap
extends Object
implements CacheMap

Default cache map implementation on the base of LinkedHashMap.
To be used together with DefaultCacheRegion. Implementation is not thread safe.

Field Summary

Fields

Modifier and Type	Field and Description
protected EvictionCallback	callback
protected Map<CacheKey,Object>	map
protected int	maxEntries

Constructor Summary

Constructors

Constructor and Description
DefaultCacheMap(int maxEntries)

Method Summary

Modifier and Type	Method and Description
void	clear() Removes all elements from map.
boolean	contains(CacheKey key) Checks if map contains value for key specified.
protected void	entryRemoved(Map.Entry<CacheKey,Object> eldest)
Object	get(CacheKey key) Gets value associated with the key.
Collection<CacheKey>	getAllKeys() Returns all keys currently stored in this map.
long	getCacheMaxEntries() Returns max cache size above which eviction occurs.
Object	put(CacheKey key, Object value) Puts new value into the map.
void	registerEvictionCallback(EvictionCallback callback) Notifies cache region when eviction occurs.
Object	remove(CacheKey key) Removes value from the map.
long	size() Returns number of elements currently stored in the cache

Methods inherited from class java.lang.Object

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

Field Detail

map

protected final Map<CacheKey,Object> map

maxEntries

protected final int maxEntries

callback

protected EvictionCallback callback

Constructor Detail

DefaultCacheMap

public DefaultCacheMap(int maxEntries)

Method Detail

registerEvictionCallback

public void registerEvictionCallback(EvictionCallback callback)

Description copied from interface: CacheMap

Notifies cache region when eviction occurs.

Specified by:

registerEvictionCallback in interface CacheMap

get

public Object get(CacheKey key)

Description copied from interface: CacheMap

Gets value associated with the key. Returns null when key does not exist.

Specified by:

get in interface CacheMap

put

public Object put(CacheKey key,
                  Object value)

Description copied from interface: CacheMap

Puts new value into the map. Replaces old one.

Specified by:

put in interface CacheMap

remove

public Object remove(CacheKey key)

Description copied from interface: CacheMap

Removes value from the map.

Specified by:

remove in interface CacheMap

contains

public boolean contains(CacheKey key)

Description copied from interface: CacheMap

Checks if map contains value for key specified.

Specified by:

contains in interface CacheMap

getCacheMaxEntries

public long getCacheMaxEntries()

Description copied from interface: CacheMap

Returns max cache size above which eviction occurs.

Specified by:

getCacheMaxEntries in interface CacheMap

clear

public void clear()

Description copied from interface: CacheMap

Removes all elements from map.

Specified by:

clear in interface CacheMap

size

public long size()

Description copied from interface: CacheMap

Returns number of elements currently stored in the cache

Specified by:

size in interface CacheMap

getAllKeys

public Collection<CacheKey> getAllKeys()

Description copied from interface: CacheMap

Returns all keys currently stored in this map.

Specified by:

getAllKeys in interface CacheMap

entryRemoved

protected void entryRemoved(Map.Entry<CacheKey,Object> eldest)