net.sf.ehcache.hibernate.strategy
Class NonStrictReadWriteEhcacheEntityRegionAccessStrategy

java.lang.Object
  net.sf.ehcache.hibernate.strategy.NonStrictReadWriteEhcacheEntityRegionAccessStrategy

All Implemented Interfaces:

org.hibernate.cache.access.EntityRegionAccessStrategy

public class NonStrictReadWriteEhcacheEntityRegionAccessStrategy
extends Object
implements org.hibernate.cache.access.EntityRegionAccessStrategy

Ehcache specific non-strict read/write entity region access strategy

Author:

Chris Dennis

Field Summary

protected T

region The wrapped Hibernate cache region.

Constructor Summary

NonStrictReadWriteEhcacheEntityRegionAccessStrategy(EhcacheEntityRegion region, org.hibernate.cfg.Settings settings)
Create a non-strict read/write access strategy accessing the given collection region.

Method Summary

boolean	afterInsert(Object key, Object value, Object version) Returns false since this is a non-strict read/write cache access strategy
boolean	afterUpdate(Object key, Object value, Object currentVersion, Object previousVersion, org.hibernate.cache.access.SoftLock lock)
void	evict(Object key) Remove the given mapping without regard to transactional safety
void	evictAll() Remove all mappings without regard to transactional safety
Object	get(Object key, long txTimestamp)
org.hibernate.cache.EntityRegion	getRegion()
boolean	insert(Object key, Object value, Object version) Returns false since this is an asynchronous cache access strategy.
org.hibernate.cache.access.SoftLock	lockItem(Object key, Object version) Since this is a non-strict read/write strategy item locking is not used.
org.hibernate.cache.access.SoftLock	lockRegion() Region locks are not supported.
boolean	putFromLoad(Object key, Object value, long txTimestamp, Object version) This method is a placeholder for method signatures supplied by interfaces pulled in further down the class hierarchy.
boolean	putFromLoad(Object key, Object value, long txTimestamp, Object version, boolean minimalPutOverride) This method is a placeholder for method signatures supplied by interfaces pulled in further down the class hierarchy.
void	remove(Object key) A no-op since this is an asynchronous cache access strategy.
void	removeAll() Called to evict data from the entire region
void	unlockItem(Object key, org.hibernate.cache.access.SoftLock lock) Since this is a non-strict read/write strategy item locking is not used.
void	unlockRegion(org.hibernate.cache.access.SoftLock lock) Region locks are not supported - perform a cache clear as a precaution.
boolean	update(Object key, Object value, Object currentVersion, Object previousVersion) Removes the entry since this is a non-strict read/write cache strategy.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hibernate.cache.access.EntityRegionAccessStrategy

evict, evictAll, lockRegion, putFromLoad, removeAll, unlockRegion

Field Detail

region

protected final T extends EhcacheTransactionalDataRegion region

The wrapped Hibernate cache region.

Constructor Detail

NonStrictReadWriteEhcacheEntityRegionAccessStrategy

public NonStrictReadWriteEhcacheEntityRegionAccessStrategy(EhcacheEntityRegion region,
                                                           org.hibernate.cfg.Settings settings)

Create a non-strict read/write access strategy accessing the given collection region.

Method Detail

getRegion

public org.hibernate.cache.EntityRegion getRegion()

Specified by:

getRegion in interface org.hibernate.cache.access.EntityRegionAccessStrategy

get

public Object get(Object key,
                  long txTimestamp)
           throws org.hibernate.cache.CacheException

Specified by:

get in interface org.hibernate.cache.access.EntityRegionAccessStrategy

Throws:

org.hibernate.cache.CacheException

putFromLoad

public boolean putFromLoad(Object key,
                           Object value,
                           long txTimestamp,
                           Object version,
                           boolean minimalPutOverride)
                    throws org.hibernate.cache.CacheException

This method is a placeholder for method signatures supplied by interfaces pulled in further down the class hierarchy.

Specified by:

putFromLoad in interface org.hibernate.cache.access.EntityRegionAccessStrategy

Throws:

org.hibernate.cache.CacheException

See Also:

EntityRegionAccessStrategy.putFromLoad(java.lang.Object, java.lang.Object, long, java.lang.Object, boolean), CollectionRegionAccessStrategy.putFromLoad(java.lang.Object, java.lang.Object, long, java.lang.Object, boolean)

lockItem

public org.hibernate.cache.access.SoftLock lockItem(Object key,
                                                    Object version)
                                             throws org.hibernate.cache.CacheException

Since this is a non-strict read/write strategy item locking is not used.

Specified by:

lockItem in interface org.hibernate.cache.access.EntityRegionAccessStrategy

Throws:

org.hibernate.cache.CacheException

unlockItem

public void unlockItem(Object key,
                       org.hibernate.cache.access.SoftLock lock)
                throws org.hibernate.cache.CacheException

Since this is a non-strict read/write strategy item locking is not used.

Specified by:

unlockItem in interface org.hibernate.cache.access.EntityRegionAccessStrategy

Throws:

org.hibernate.cache.CacheException

insert

public boolean insert(Object key,
                      Object value,
                      Object version)
               throws org.hibernate.cache.CacheException

Returns false since this is an asynchronous cache access strategy.

Specified by:

insert in interface org.hibernate.cache.access.EntityRegionAccessStrategy

Throws:

org.hibernate.cache.CacheException

afterInsert

public boolean afterInsert(Object key,
                           Object value,
                           Object version)
                    throws org.hibernate.cache.CacheException

Returns false since this is a non-strict read/write cache access strategy

Specified by:

afterInsert in interface org.hibernate.cache.access.EntityRegionAccessStrategy

Throws:

org.hibernate.cache.CacheException

update

public boolean update(Object key,
                      Object value,
                      Object currentVersion,
                      Object previousVersion)
               throws org.hibernate.cache.CacheException

Removes the entry since this is a non-strict read/write cache strategy.

Specified by:

update in interface org.hibernate.cache.access.EntityRegionAccessStrategy

Throws:

org.hibernate.cache.CacheException

afterUpdate

public boolean afterUpdate(Object key,
                           Object value,
                           Object currentVersion,
                           Object previousVersion,
                           org.hibernate.cache.access.SoftLock lock)
                    throws org.hibernate.cache.CacheException

Specified by:

afterUpdate in interface org.hibernate.cache.access.EntityRegionAccessStrategy

Throws:

org.hibernate.cache.CacheException

remove

public void remove(Object key)
            throws org.hibernate.cache.CacheException

A no-op since this is an asynchronous cache access strategy.

Specified by:

remove in interface org.hibernate.cache.access.EntityRegionAccessStrategy

Throws:

org.hibernate.cache.CacheException

See Also:

EntityRegionAccessStrategy.remove(java.lang.Object), CollectionRegionAccessStrategy.remove(java.lang.Object)

putFromLoad

public final boolean putFromLoad(Object key,
                                 Object value,
                                 long txTimestamp,
                                 Object version)
                          throws org.hibernate.cache.CacheException

This method is a placeholder for method signatures supplied by interfaces pulled in further down the class hierarchy.

Throws:

org.hibernate.cache.CacheException

See Also:

EntityRegionAccessStrategy.putFromLoad(java.lang.Object, java.lang.Object, long, java.lang.Object), CollectionRegionAccessStrategy.putFromLoad(java.lang.Object, java.lang.Object, long, java.lang.Object)

lockRegion

public final org.hibernate.cache.access.SoftLock lockRegion()

Region locks are not supported.

Returns:

null

See Also:

EntityRegionAccessStrategy.lockRegion(), CollectionRegionAccessStrategy.lockRegion()

unlockRegion

public final void unlockRegion(org.hibernate.cache.access.SoftLock lock)
                        throws org.hibernate.cache.CacheException

Region locks are not supported - perform a cache clear as a precaution.

Throws:

org.hibernate.cache.CacheException

See Also:

EntityRegionAccessStrategy.unlockRegion(org.hibernate.cache.access.SoftLock), CollectionRegionAccessStrategy.unlockRegion(org.hibernate.cache.access.SoftLock)

removeAll

public final void removeAll()
                     throws org.hibernate.cache.CacheException

Called to evict data from the entire region

Throws:

org.hibernate.cache.CacheException - Propogated from underlying Region

See Also:

EntityRegionAccessStrategy.removeAll(), CollectionRegionAccessStrategy.removeAll()

evict

public final void evict(Object key)
                 throws org.hibernate.cache.CacheException

Remove the given mapping without regard to transactional safety

Throws:

org.hibernate.cache.CacheException

See Also:

EntityRegionAccessStrategy.evict(java.lang.Object), CollectionRegionAccessStrategy.evict(java.lang.Object)

evictAll

public final void evictAll()
                    throws org.hibernate.cache.CacheException

Remove all mappings without regard to transactional safety

Throws:

org.hibernate.cache.CacheException

See Also:

EntityRegionAccessStrategy.evictAll(), CollectionRegionAccessStrategy.evictAll()