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java.lang.Object net.sf.ehcache.hibernate.strategy.ReadWriteEhcacheEntityRegionAccessStrategy
public class ReadWriteEhcacheEntityRegionAccessStrategy
Ehcache specific read/write entity region access strategy
Nested Class Summary | |
---|---|
protected static class |
AbstractReadWriteEhcacheAccessStrategy.Item
Wrapper type representing unlocked items. |
protected static class |
AbstractReadWriteEhcacheAccessStrategy.Lock
Wrapper type representing locked items. |
protected static interface |
AbstractReadWriteEhcacheAccessStrategy.Lockable
Interface type implemented by all wrapper objects in the cache. |
Field Summary | |
---|---|
protected T |
region
The wrapped Hibernate cache region. |
protected Settings |
settings
The settings for this persistence unit. |
Constructor Summary | |
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ReadWriteEhcacheEntityRegionAccessStrategy(EhcacheEntityRegion region,
Settings settings)
Create a read/write access strategy accessing the given entity region. |
Method Summary | |
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boolean |
afterInsert(Object key,
Object value,
Object version)
|
boolean |
afterUpdate(Object key,
Object value,
Object currentVersion,
Object previousVersion,
SoftLock lock)
|
protected void |
decrementLock(Object key,
AbstractReadWriteEhcacheAccessStrategy.Lock lock)
Unlock and re-put the given key, lock combination. |
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)
Returns null if the item is not readable. |
EntityRegion |
getRegion()
|
protected void |
handleMissingLock(Object key,
AbstractReadWriteEhcacheAccessStrategy.Lockable lock)
Handle the timeout of a previous lock mapped to this key |
boolean |
insert(Object key,
Object value,
Object version)
A no-op since this is an asynchronous cache access strategy. |
SoftLock |
lockItem(Object key,
Object version)
Soft-lock a cache item. |
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)
Returns false and fails to put the value if there is an existing un-writeable item mapped to this
key. |
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)
Soft-unlock a cache item. |
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)
A no-op since this is an asynchronous cache access strategy. |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected final T extends EhcacheTransactionalDataRegion region
protected final Settings settings
Constructor Detail |
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public ReadWriteEhcacheEntityRegionAccessStrategy(EhcacheEntityRegion region, Settings settings)
Method Detail |
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public EntityRegion getRegion()
public boolean insert(Object key, Object value, Object version) throws CacheException
CacheException
public boolean afterInsert(Object key, Object value, Object version) throws CacheException
Inserts will only succeed if there is no existing value mapped to this key.
CacheException
public boolean update(Object key, Object value, Object currentVersion, Object previousVersion) throws CacheException
CacheException
public boolean afterUpdate(Object key, Object value, Object currentVersion, Object previousVersion, SoftLock lock) throws CacheException
Updates will only succeed if this entry was locked by this transaction and exclusively this transaction for the duration of this transaction. It is important to also note that updates will fail if the soft-lock expired during the course of this transaction.
CacheException
public final Object get(Object key, long txTimestamp) throws CacheException
null
if the item is not readable. Locked items are not readable, nor are items created
after the start of this transaction.
CacheException
org.hibernate.cache.access.EntityRegionAccessStrategy#get(java.lang.Object, long)
,
org.hibernate.cache.access.CollectionRegionAccessStrategy#get(java.lang.Object, long)
public final boolean putFromLoad(Object key, Object value, long txTimestamp, Object version, boolean minimalPutOverride) throws CacheException
false
and fails to put the value if there is an existing un-writeable item mapped to this
key.
CacheException
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)
public final SoftLock lockItem(Object key, Object version) throws CacheException
CacheException
org.hibernate.cache.access.EntityRegionAccessStrategy#lockItem(java.lang.Object, java.lang.Object)
,
org.hibernate.cache.access.CollectionRegionAccessStrategy#lockItem(java.lang.Object, java.lang.Object)
public final void unlockItem(Object key, SoftLock lock) throws CacheException
CacheException
org.hibernate.cache.access.EntityRegionAccessStrategy#unlockItem(java.lang.Object, org.hibernate.cache.access.SoftLock)
,
org.hibernate.cache.access.CollectionRegionAccessStrategy#unlockItem(java.lang.Object, org.hibernate.cache.access.SoftLock)
protected void decrementLock(Object key, AbstractReadWriteEhcacheAccessStrategy.Lock lock)
protected void handleMissingLock(Object key, AbstractReadWriteEhcacheAccessStrategy.Lockable lock)
public final boolean putFromLoad(Object key, Object value, long txTimestamp, Object version) throws CacheException
CacheException
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)
public final SoftLock lockRegion()
null
org.hibernate.cache.access.EntityRegionAccessStrategy#lockRegion()
,
org.hibernate.cache.access.CollectionRegionAccessStrategy#lockRegion()
public final void unlockRegion(SoftLock lock) throws CacheException
CacheException
org.hibernate.cache.access.EntityRegionAccessStrategy#unlockRegion(org.hibernate.cache.access.SoftLock)
,
org.hibernate.cache.access.CollectionRegionAccessStrategy#unlockRegion(org.hibernate.cache.access.SoftLock)
public void remove(Object key) throws CacheException
CacheException
org.hibernate.cache.access.EntityRegionAccessStrategy#remove(java.lang.Object)
,
org.hibernate.cache.access.CollectionRegionAccessStrategy#remove(java.lang.Object)
public final void removeAll() throws CacheException
CacheException
- Propogated from underlying org.hibernate.cache.Region
org.hibernate.cache.access.EntityRegionAccessStrategy#removeAll()
,
org.hibernate.cache.access.CollectionRegionAccessStrategy#removeAll()
public final void evict(Object key) throws CacheException
CacheException
org.hibernate.cache.access.EntityRegionAccessStrategy#evict(java.lang.Object)
,
org.hibernate.cache.access.CollectionRegionAccessStrategy#evict(java.lang.Object)
public final void evictAll() throws CacheException
CacheException
org.hibernate.cache.access.EntityRegionAccessStrategy#evictAll()
,
org.hibernate.cache.access.CollectionRegionAccessStrategy#evictAll()
|
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