ehcache

net.sf.ehcache.hibernate.strategy
Class NonStrictReadWriteEhcacheEntityRegionAccessStrategy

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

public class NonStrictReadWriteEhcacheEntityRegionAccessStrategy
extends Object

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

Author:
Chris Dennis

Field Summary
protected  T region
          The wrapped Hibernate cache region.
protected  Settings settings
          The settings for this persistence unit.
 
Constructor Summary
NonStrictReadWriteEhcacheEntityRegionAccessStrategy(EhcacheEntityRegion region, 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, 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)
          
 EntityRegion getRegion()
          
 boolean insert(Object key, Object value, Object version)
          Returns false since this is an asynchronous cache access strategy.
 SoftLock lockItem(Object key, Object version)
          Since this is a non-strict read/write strategy item locking is not used.
 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, SoftLock lock)
          Since this is a non-strict read/write strategy item locking is not used.
 void unlockRegion(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
 

Field Detail

region

protected final T extends EhcacheTransactionalDataRegion region
The wrapped Hibernate cache region.


settings

protected final Settings settings
The settings for this persistence unit.

Constructor Detail

NonStrictReadWriteEhcacheEntityRegionAccessStrategy

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

Method Detail

getRegion

public EntityRegion getRegion()


get

public Object get(Object key,
                  long txTimestamp)
           throws CacheException

Throws:
CacheException

putFromLoad

public boolean putFromLoad(Object key,
                           Object value,
                           long txTimestamp,
                           Object version,
                           boolean minimalPutOverride)
                    throws CacheException
This method is a placeholder for method signatures supplied by interfaces pulled in further down the class hierarchy.

Throws:
CacheException
See Also:
org.hibernate.cache.access.EntityRegionAccessStrategy#putFromLoad(java.lang.Object, java.lang.Object, long, java.lang.Object, boolean), org.hibernate.cache.access.CollectionRegionAccessStrategy#putFromLoad(java.lang.Object, java.lang.Object, long, java.lang.Object, boolean)

lockItem

public SoftLock lockItem(Object key,
                         Object version)
                  throws CacheException
Since this is a non-strict read/write strategy item locking is not used.

Throws:
CacheException

unlockItem

public void unlockItem(Object key,
                       SoftLock lock)
                throws CacheException
Since this is a non-strict read/write strategy item locking is not used.

Throws:
CacheException

insert

public boolean insert(Object key,
                      Object value,
                      Object version)
               throws CacheException
Returns false since this is an asynchronous cache access strategy.

Throws:
CacheException

afterInsert

public boolean afterInsert(Object key,
                           Object value,
                           Object version)
                    throws CacheException
Returns false since this is a non-strict read/write cache access strategy

Throws:
CacheException

update

public boolean update(Object key,
                      Object value,
                      Object currentVersion,
                      Object previousVersion)
               throws CacheException
Removes the entry since this is a non-strict read/write cache strategy.

Throws:
CacheException

afterUpdate

public boolean afterUpdate(Object key,
                           Object value,
                           Object currentVersion,
                           Object previousVersion,
                           SoftLock lock)
                    throws CacheException

Throws:
CacheException

remove

public void remove(Object key)
            throws CacheException
A no-op since this is an asynchronous cache access strategy.

Throws:
CacheException
See Also:
org.hibernate.cache.access.EntityRegionAccessStrategy#remove(java.lang.Object), org.hibernate.cache.access.CollectionRegionAccessStrategy#remove(java.lang.Object)

putFromLoad

public final boolean putFromLoad(Object key,
                                 Object value,
                                 long txTimestamp,
                                 Object version)
                          throws CacheException
This method is a placeholder for method signatures supplied by interfaces pulled in further down the class hierarchy.

Throws:
CacheException
See Also:
org.hibernate.cache.access.EntityRegionAccessStrategy#putFromLoad(java.lang.Object, java.lang.Object, long, java.lang.Object), org.hibernate.cache.access.CollectionRegionAccessStrategy#putFromLoad(java.lang.Object, java.lang.Object, long, java.lang.Object)

lockRegion

public final SoftLock lockRegion()
Region locks are not supported.

Returns:
null
See Also:
org.hibernate.cache.access.EntityRegionAccessStrategy#lockRegion(), org.hibernate.cache.access.CollectionRegionAccessStrategy#lockRegion()

unlockRegion

public final void unlockRegion(SoftLock lock)
                        throws CacheException
Region locks are not supported - perform a cache clear as a precaution.

Throws:
CacheException
See Also:
org.hibernate.cache.access.EntityRegionAccessStrategy#unlockRegion(org.hibernate.cache.access.SoftLock), org.hibernate.cache.access.CollectionRegionAccessStrategy#unlockRegion(org.hibernate.cache.access.SoftLock)

removeAll

public final void removeAll()
                     throws CacheException
Called to evict data from the entire region

Throws:
CacheException - Propogated from underlying org.hibernate.cache.Region
See Also:
org.hibernate.cache.access.EntityRegionAccessStrategy#removeAll(), org.hibernate.cache.access.CollectionRegionAccessStrategy#removeAll()

evict

public final void evict(Object key)
                 throws CacheException
Remove the given mapping without regard to transactional safety

Throws:
CacheException
See Also:
org.hibernate.cache.access.EntityRegionAccessStrategy#evict(java.lang.Object), org.hibernate.cache.access.CollectionRegionAccessStrategy#evict(java.lang.Object)

evictAll

public final void evictAll()
                    throws CacheException
Remove all mappings without regard to transactional safety

Throws:
CacheException
See Also:
org.hibernate.cache.access.EntityRegionAccessStrategy#evictAll(), org.hibernate.cache.access.CollectionRegionAccessStrategy#evictAll()

ehcache

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