Package org.eclipse.persistence.internal.identitymaps

Class LinkedCacheKey

java.lang.Object

org.eclipse.persistence.internal.helper.ConcurrencyManager

org.eclipse.persistence.internal.identitymaps.CacheKey

org.eclipse.persistence.internal.identitymaps.LinkedCacheKey

All Implemented Interfaces:

Serializable, Cloneable

public class LinkedCacheKey
extends CacheKey

Purpose: Provides the capability to insert CacheKeys into a Linked List.

Responsibilities:

• Provide same capabilities as superclass.
• Maintain within linked list.

Since:

TOPLink/Java 1.0

See Also:

CacheIdentityMap, Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected LinkedCacheKey	next	Handle on next element in cache
protected LinkedCacheKey	previous	Handle on previous element in cache

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
LinkedCacheKey(Object primaryKey, Object object, Object writeLockValue, long readTime, boolean isIsolated)	Initialize the newly allocated instance of this class.

Method Summary

Modifier and Type	Method	Description
LinkedCacheKey	getNext()
LinkedCacheKey	getPrevious()
void	setNext(LinkedCacheKey next)
void	setPrevious(LinkedCacheKey previous)

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, getObject, getOwningMap, getProtectedForeignKeys, getReadTime, getRecord, getTransactionId, getWrappedCacheKey, getWrapper, getWriteLockValue, hashCode, hasProtectedForeignKeys, isIsolated, isWrapper, release, releaseDeferredLock, releaseReadLock, removeFromOwningMap, setInvalidationState, setIsolated, setIsWrapper, setKey, setLastUpdatedQueryId, setObject, setOwningMap, setProtectedForeignKeys, setReadTime, setRecord, setTransactionId, setWrapper, setWriteLockValue, toString, updateAccess, 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

previous

protected LinkedCacheKey previous

Handle on previous element in cache

next

protected LinkedCacheKey next

Handle on next element in cache

Constructor Detail

LinkedCacheKey

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

Initialize the newly allocated instance of this class.

Parameters:

object - is the domain object.

writeLockValue - is the write lock value number.

Method Detail

getNext

public LinkedCacheKey getNext()

getPrevious

public LinkedCacheKey getPrevious()

setNext

public void setNext(LinkedCacheKey next)

setPrevious

public void setPrevious(LinkedCacheKey previous)