Package org.eclipse.persistence.internal.identitymaps

Class HardCacheWeakIdentityMap.ReferenceCacheKey

java.lang.Object

org.eclipse.persistence.internal.helper.ConcurrencyManager

org.eclipse.persistence.internal.identitymaps.CacheKey

org.eclipse.persistence.internal.identitymaps.WeakCacheKey

org.eclipse.persistence.internal.identitymaps.HardCacheWeakIdentityMap.ReferenceCacheKey

All Implemented Interfaces:

Serializable, Cloneable

Enclosing class:

HardCacheWeakIdentityMap

public class HardCacheWeakIdentityMap.ReferenceCacheKey
extends WeakCacheKey

Inner class to define the specialized weak cache key. Keeps track of the linked list node to allow quick repositioning.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected LinkedNode	referenceNode

Fields inherited from class org.eclipse.persistence.internal.identitymaps.WeakCacheKey

reference

Fields inherited from class org.eclipse.persistence.internal.identitymaps.CacheKey

CACHE_KEY_INVALID, CHECK_INVALIDATION_POLICY, CREATION_THREAD_HASHCODE, CREATION_THREAD_ID, CREATION_THREAD_NAME, invalidationState, isIsolated, isWrapper, key, lastUpdatedQueryId, mapOwner, MAX_WAIT_TRIES, object, protectedForeignKeys, readTime, record, transactionId, wrapper, writeLockValue

Fields inherited from class org.eclipse.persistence.internal.helper.ConcurrencyManager

activeThread, DEFERRED_LOCK_MANAGERS, depth, lockedByMergeManager, numberOfReaders, numberOfWritersWaiting, shouldTrackStack, stack

Constructor Summary

Constructors

Constructor	Description
ReferenceCacheKey(Object primaryKey, Object object, Object writeLockValue, long readTime, boolean isIsolated)

Method Summary

Modifier and Type	Method	Description
ExposedNodeLinkedList	getReferenceCache()
LinkedNode	getReferenceCacheNode()
void	setReferenceCacheNode(LinkedNode referenceNode)
void	updateAccess()	Notifies that cache key that it has been accessed.

Methods inherited from class org.eclipse.persistence.internal.identitymaps.WeakCacheKey

getObject, setObject

Methods inherited from class org.eclipse.persistence.internal.identitymaps.CacheKey

acquire, acquire, acquireDeferredLock, acquireIfUnownedNoWait, acquireLock, acquireNoWait, acquireNoWait, acquireReadLock, acquireReadLockNoWait, acquireWithWait, checkDeferredLock, checkReadLock, clone, equals, equals, getActiveThread, getInvalidationState, getKey, getLastUpdatedQueryId, getOwningMap, getProtectedForeignKeys, getReadTime, getRecord, getTransactionId, getWrappedCacheKey, getWrapper, getWriteLockValue, hashCode, hasProtectedForeignKeys, isIsolated, isWrapper, release, releaseDeferredLock, releaseReadLock, removeFromOwningMap, setInvalidationState, setIsolated, setIsWrapper, setKey, setLastUpdatedQueryId, setOwningMap, setProtectedForeignKeys, setReadTime, setRecord, setTransactionId, setWrapper, setWriteLockValue, toString, waitForObject

Methods inherited from class org.eclipse.persistence.internal.helper.ConcurrencyManager

acquireIfUnownedNoWait, addReadLockToReadLockManager, clearJustificationWhyMethodIsBuildingObjectCompleteReturnsFalse, enrichStringBuildingExplainWhyThreadIsStuckInIsBuildObjectOnThreadComplete, getConcurrencyManagerCreationDate, getConcurrencyManagerId, getDeferredLockManager, getDeferredLockManagers, getDepth, getNumberOfReaders, getNumberOfWritersWaiting, getReadLockManager, getReadLockManagerEnsureResultIsNotNull, getReadLockManagers, getStack, getThreadsToWaitOnAcquire, getThreadsToWaitOnAcquireMethodName, getThreadsToWaitOnAcquireReadLock, getThreadsToWaitOnAcquireReadLockMethodName, getThreadsWaitingToReleaseDeferredLocks, getThreadsWaitingToReleaseDeferredLocksJustification, getTotalNumberOfKeysAcquiredForReading, getTotalNumberOfKeysReleasedForReading, getTotalNumberOfKeysReleasedForReadingBlewUpExceptionDueToCacheKeyHavingReachedCounterZero, initializeDeferredLockManagers, isAcquired, isBuildObjectOnThreadComplete, isLockedByMergeManager, isNested, putDeferredLock, putThreadAsWaitingToAcquireLockForReading, putThreadAsWaitingToAcquireLockForWriting, releaseAllLocksAcquiredByThread, removeDeferredLockManager, removeReadLockFromReadLockManager, removeReadLockManagerIfEmpty, removeThreadNoLongerWaitingToAcquireLockForReading, removeThreadNoLongerWaitingToAcquireLockForWriting, setActiveThread, setDepth, setIsLockedByMergeManager, setJustificationWhyMethodIsBuildingObjectCompleteReturnsFalse, setNumberOfReaders, setNumberOfWritersWaiting, setShouldTrackStack, setStack, shouldTrackStack, transitionToDeferredLock

Methods inherited from class java.lang.Object

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

Field Detail

referenceNode

protected LinkedNode referenceNode

Constructor Detail

ReferenceCacheKey

public ReferenceCacheKey(Object primaryKey,
                         Object object,
                         Object writeLockValue,
                         long readTime,
                         boolean isIsolated)

Method Detail

getReferenceCacheNode

public LinkedNode getReferenceCacheNode()

setReferenceCacheNode

public void setReferenceCacheNode(LinkedNode referenceNode)

getReferenceCache

public ExposedNodeLinkedList getReferenceCache()

updateAccess

public void updateAccess()

Notifies that cache key that it has been accessed. Allows the LRU sub-cache to be maintained, the cache node must be moved to the front of the list.

Overrides:

updateAccess in class CacheKey