public class ReadOnlyEhcacheCollectionRegionAccessStrategy extends Object implements CollectionRegionAccessStrategy
Constructor and Description |
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ReadOnlyEhcacheCollectionRegionAccessStrategy(EhcacheCollectionRegion region,
Settings settings)
Create a read-only access strategy accessing the given collection region.
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Modifier and Type | Method and Description |
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void |
evict(Object key)
Remove the given mapping without regard to transactional safety
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void |
evictAll()
Remove all mappings without regard to transactional safety
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Object |
get(Object key,
long txTimestamp)
Attempt to retrieve an object from the cache.
|
CollectionRegion |
getRegion()
Get the wrapped collection cache region
|
SoftLock |
lockItem(Object key,
Object version)
We are going to attempt to update/delete the keyed object.
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SoftLock |
lockRegion()
Region locks are not supported.
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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.
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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.
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protected T |
region()
The wrapped Hibernate cache region.
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void |
remove(Object key)
A no-op since this is an asynchronous cache access strategy.
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void |
removeAll()
Called to evict data from the entire region
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protected Settings |
settings()
The settings for this persistence unit.
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void |
unlockItem(Object key,
SoftLock lock)
Called when we have finished the attempted update/delete (which may or
may not have been successful), after transaction completion.
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void |
unlockRegion(SoftLock lock)
Region locks are not supported - perform a cache clear as a precaution.
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
evict, evictAll, lockRegion, putFromLoad, remove, removeAll, unlockRegion
public ReadOnlyEhcacheCollectionRegionAccessStrategy(EhcacheCollectionRegion region, Settings settings)
region
- The wrapped regionsettings
- The Hibernate settingspublic CollectionRegion getRegion()
CollectionRegionAccessStrategy
getRegion
in interface CollectionRegionAccessStrategy
public Object get(Object key, long txTimestamp) throws CacheException
RegionAccessStrategy
get
in interface RegionAccessStrategy
key
- The key of the item to be retrieved.txTimestamp
- a timestamp prior to the transaction start timeCacheException
- Propogated from underlying Region
public boolean putFromLoad(Object key, Object value, long txTimestamp, Object version, boolean minimalPutOverride) throws CacheException
putFromLoad
in interface RegionAccessStrategy
key
- The item keyvalue
- The itemtxTimestamp
- a timestamp prior to the transaction start timeversion
- the item version numberminimalPutOverride
- Explicit minimalPut flagCacheException
- Propogated from underlying Region
RegionAccessStrategy.putFromLoad(java.lang.Object, java.lang.Object, long, java.lang.Object, boolean)
,
RegionAccessStrategy.putFromLoad(java.lang.Object, java.lang.Object, long, java.lang.Object, boolean)
public SoftLock lockItem(Object key, Object version) throws UnsupportedOperationException
RegionAccessStrategy
RegionAccessStrategy.unlockItem(java.lang.Object, org.hibernate.cache.spi.access.SoftLock)
, to release the
lock. Concurrency strategies which do not support client-visible
locks may silently return null.lockItem
in interface RegionAccessStrategy
key
- The key of the item to lockversion
- The item's current version valueUnsupportedOperationException
public void unlockItem(Object key, SoftLock lock) throws CacheException
unlockItem
in interface RegionAccessStrategy
key
- The item keylock
- The lock previously obtained from RegionAccessStrategy.lockItem(java.lang.Object, java.lang.Object)
CacheException
- Propogated from underlying Region
protected T region()
protected Settings settings()
public final boolean putFromLoad(Object key, Object value, long txTimestamp, Object version) throws CacheException
public final SoftLock lockRegion()
null
RegionAccessStrategy.lockRegion()
,
RegionAccessStrategy.lockRegion()
public final void unlockRegion(SoftLock lock) throws CacheException
public void remove(Object key) throws CacheException
public final void removeAll() throws CacheException
CacheException
- Propogated from underlying Region
RegionAccessStrategy.removeAll()
,
RegionAccessStrategy.removeAll()
public final void evict(Object key) throws CacheException
public final void evictAll() throws CacheException
CacheException
RegionAccessStrategy.evictAll()
,
RegionAccessStrategy.evictAll()
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