de.hybris.platform.regioncache.region.impl

Class DefaultCacheRegion

java.lang.Object

de.hybris.platform.regioncache.region.impl.DefaultCacheRegion

All Implemented Interfaces:

CacheRegion

public class DefaultCacheRegion
extends Object
implements CacheRegion

Default cache region implementation.
For the synchronization it uses ReentrantReadWriteLock one for whole cache map. It is really inefficient then.

Field Summary

Fields

Modifier and Type	Field and Description
protected CacheMap	cacheMap
protected boolean	exclusiveComputation
protected String[]	handledTypes
protected CacheLifecycleCallback	lifecycleCallback
protected String	name
protected ReentrantReadWriteLock	sharedLock
protected CacheStatistics	stats
protected boolean	statsEnabled

Constructor Summary

Constructors

Constructor and Description
DefaultCacheRegion(String name)
DefaultCacheRegion(String name, boolean exclusiveComputation, boolean statsEnabled)
DefaultCacheRegion(String name, CacheMap cacheMap, CacheStatistics stats, String[] handledTypes)
DefaultCacheRegion(String name, CacheMap cacheMap, CacheStatistics stats, String[] handledTypes, boolean exclusiveComputation, boolean statsEnabled)
DefaultCacheRegion(String name, CacheMap cacheMap, String[] handledTypes)
DefaultCacheRegion(String name, int maxEntries)
DefaultCacheRegion(String name, int maxEntries, boolean exclusiveComputation, String evictionPolicy, boolean statsEnabled)

Method Summary

Modifier and Type	Method and Description
void	clearCache() Removes all elements from cache.
boolean	containsKey(CacheKey key) Checks if key is in the cache map.
boolean	equals(Object obj)
Object	get(CacheKey key) Gets value from the cache.
Collection<CacheKey>	getAllKeys() Returns all keys currently stored in this region.
CacheMap	getCacheMap()
long	getCacheMaxEntries() Gets number of cache entries above which invalidation occurs.
CacheStatistics	getCacheRegionStatistics() Gets statistics for current region.
String[]	getHandledTypes() Gets types which can be stored in the region.
long	getMaxReachedSize() Returns number of elements currently in the cache
String	getName() Gets region name.
Object	getWithLoader(CacheKey key, CacheValueLoader loader) Gets value from cache.
int	hashCode()
void	init()
Object	invalidate(CacheKey key, boolean fireEventsEvenIfNotRemoved) Invalidates (removes) value from cache map.
boolean	isStatsEnabled()
void	registerLifecycleCallback(CacheLifecycleCallback callback) This callback shall be called when eviction occurs.
Object	remove(CacheKey key, boolean fireEvents) Removes value stored on the key specified.
void	setCacheMap(CacheMap cacheMap)
void	setHandledTypes(String[] handledTypes)
void	setStatsEnabled(boolean enabled)
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

cacheMap

protected CacheMap cacheMap

handledTypes

protected String[] handledTypes

lifecycleCallback

protected CacheLifecycleCallback lifecycleCallback

name

protected final String name

stats

protected final CacheStatistics stats

sharedLock

protected final ReentrantReadWriteLock sharedLock

statsEnabled

protected volatile boolean statsEnabled

exclusiveComputation

protected final boolean exclusiveComputation

Constructor Detail

DefaultCacheRegion

public DefaultCacheRegion(String name)

DefaultCacheRegion

public DefaultCacheRegion(String name,
                          CacheMap cacheMap,
                          String[] handledTypes)

DefaultCacheRegion

public DefaultCacheRegion(String name,
                          boolean exclusiveComputation,
                          boolean statsEnabled)

DefaultCacheRegion

public DefaultCacheRegion(String name,
                          CacheMap cacheMap,
                          CacheStatistics stats,
                          String[] handledTypes)

DefaultCacheRegion

public DefaultCacheRegion(String name,
                          CacheMap cacheMap,
                          CacheStatistics stats,
                          String[] handledTypes,
                          boolean exclusiveComputation,
                          boolean statsEnabled)

DefaultCacheRegion

public DefaultCacheRegion(String name,
                          int maxEntries,
                          boolean exclusiveComputation,
                          String evictionPolicy,
                          boolean statsEnabled)

Parameters:

evictionPolicy -

DefaultCacheRegion

public DefaultCacheRegion(String name,
                          int maxEntries)

Method Detail

init

@PostConstruct
public void init()

get

public Object get(CacheKey key)

Description copied from interface: CacheRegion

Gets value from the cache. If value is absent returns null. Must be thread safe.

Specified by:

get in interface CacheRegion

getMaxReachedSize

public long getMaxReachedSize()

Description copied from interface: CacheRegion

Returns number of elements currently in the cache

Specified by:

getMaxReachedSize in interface CacheRegion

getWithLoader

public Object getWithLoader(CacheKey key,
                            CacheValueLoader loader)
                     throws CacheValueLoadException

Description copied from interface: CacheRegion

Gets value from cache. Invokes loader if necessary. Must be thread safe.

Specified by:

getWithLoader in interface CacheRegion

Throws:

CacheValueLoadException

invalidate

public Object invalidate(CacheKey key,
                         boolean fireEventsEvenIfNotRemoved)

Description copied from interface: CacheRegion

Invalidates (removes) value from cache map. Must be thread safe.

Specified by:

invalidate in interface CacheRegion

Returns:

an object invalidated from cache.

getName

public String getName()

Description copied from interface: CacheRegion

Gets region name. Needed to resolve proper cache region.

Specified by:

getName in interface CacheRegion

getHandledTypes

public String[] getHandledTypes()

Description copied from interface: CacheRegion

Gets types which can be stored in the region. Needed to resolve proper cache region.
Special type names are defined in RegionType.

Specified by:

getHandledTypes in interface CacheRegion

setHandledTypes

public void setHandledTypes(String[] handledTypes)

getCacheMap

public CacheMap getCacheMap()

Returns:

the cacheMap

setCacheMap

public void setCacheMap(CacheMap cacheMap)

Parameters:

cacheMap - the cacheMap to set

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

getCacheRegionStatistics

public CacheStatistics getCacheRegionStatistics()

Description copied from interface: CacheRegion

Gets statistics for current region.

Specified by:

getCacheRegionStatistics in interface CacheRegion

getCacheMaxEntries

public long getCacheMaxEntries()

Description copied from interface: CacheRegion

Gets number of cache entries above which invalidation occurs.

Specified by:

getCacheMaxEntries in interface CacheRegion

clearCache

public void clearCache()

Description copied from interface: CacheRegion

Removes all elements from cache.

Specified by:

clearCache in interface CacheRegion

registerLifecycleCallback

public void registerLifecycleCallback(CacheLifecycleCallback callback)

Description copied from interface: CacheRegion

This callback shall be called when eviction occurs.

Specified by:

registerLifecycleCallback in interface CacheRegion

toString

public String toString()

Overrides:

toString in class Object

getAllKeys

public Collection<CacheKey> getAllKeys()

Description copied from interface: CacheRegion

Returns all keys currently stored in this region.

Specified by:

getAllKeys in interface CacheRegion

remove

public Object remove(CacheKey key,
                     boolean fireEvents)

Description copied from interface: CacheRegion

Removes value stored on the key specified. This method does not update statistics. Returns value removed or null.

Specified by:

remove in interface CacheRegion

containsKey

public boolean containsKey(CacheKey key)

Description copied from interface: CacheRegion

Checks if key is in the cache map.

Specified by:

containsKey in interface CacheRegion

setStatsEnabled

public void setStatsEnabled(boolean enabled)

Specified by:

setStatsEnabled in interface CacheRegion

isStatsEnabled

public boolean isStatsEnabled()

Specified by:

isStatsEnabled in interface CacheRegion