Package com.orientechnologies.orient.core.storage.impl.local.paginated.atomicoperations

Class OCacheEntryChanges

java.lang.Object

com.orientechnologies.orient.core.storage.impl.local.paginated.atomicoperations.OCacheEntryChanges

All Implemented Interfaces:

OCacheEntry, Closeable, AutoCloseable

public class OCacheEntryChanges
extends Object
implements OCacheEntry

Created by tglman on 23/06/16.

Field Summary

Fields

Modifier and Type	Field	Description
protected final OWALChanges	changes
protected OCacheEntry	delegate
protected boolean	isNew
protected boolean	verifyCheckSum

Constructor Summary

Constructors

Constructor	Description
OCacheEntryChanges(boolean verifyCheckSum, OAtomicOperation atomicOp)

Method Summary

Modifier and Type	Method	Description
boolean	acquireEntry()
void	acquireExclusiveLock()
void	acquireSharedLock()
void	clearAllocationFlag()
void	clearCachePointer()
void	close()
void	decrementUsages()
boolean	freeze()
OCachePointer	getCachePointer()
OWALChanges	getChanges()
LRUList	getContainer()
OCacheEntry	getDelegate()
OLogSequenceNumber	getEndLSN()
long	getFileId()
OLogSequenceNumber	getInitialLSN()
OCacheEntry	getNext()
int	getPageIndex()
PageKey	getPageKey()
OCacheEntry	getPrev()
int	getUsagesCount()
void	incrementUsages()
boolean	insideCache()
boolean	isAlive()
boolean	isDead()
boolean	isFrozen()
boolean	isLockAcquiredByCurrentThread()	DEBUG only !!
boolean	isNewlyAllocatedPage()
boolean	isReleased()
void	makeDead()
void	markAllocated()
void	releaseEntry()
void	releaseExclusiveLock()
void	releaseSharedLock()
void	setContainer(LRUList lruList)
void	setDelegate(OCacheEntry delegate)
void	setEndLSN(OLogSequenceNumber endLSN)
void	setInitialLSN(OLogSequenceNumber lsn)
void	setNext(OCacheEntry next)
void	setPrev(OCacheEntry prev)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

delegate

protected OCacheEntry delegate

changes

protected final OWALChanges changes

isNew

protected boolean isNew

verifyCheckSum

protected boolean verifyCheckSum

Constructor Details

OCacheEntryChanges

public OCacheEntryChanges(boolean verifyCheckSum,
 OAtomicOperation atomicOp)

Method Details

getCachePointer

public OCachePointer getCachePointer()

Specified by:

getCachePointer in interface OCacheEntry

clearCachePointer

public void clearCachePointer()

Specified by:

clearCachePointer in interface OCacheEntry

getFileId

public long getFileId()

Specified by:

getFileId in interface OCacheEntry

getPageIndex

public int getPageIndex()

Specified by:

getPageIndex in interface OCacheEntry

acquireExclusiveLock

public void acquireExclusiveLock()

Specified by:

acquireExclusiveLock in interface OCacheEntry

releaseExclusiveLock

public void releaseExclusiveLock()

Specified by:

releaseExclusiveLock in interface OCacheEntry

acquireSharedLock

public void acquireSharedLock()

Specified by:

acquireSharedLock in interface OCacheEntry

releaseSharedLock

public void releaseSharedLock()

Specified by:

releaseSharedLock in interface OCacheEntry

getUsagesCount

public int getUsagesCount()

Specified by:

getUsagesCount in interface OCacheEntry

incrementUsages

public void incrementUsages()

Specified by:

incrementUsages in interface OCacheEntry

isLockAcquiredByCurrentThread

public boolean isLockAcquiredByCurrentThread()

Description copied from interface: OCacheEntry

DEBUG only !!

Specified by:

isLockAcquiredByCurrentThread in interface OCacheEntry

Returns:

Whether lock acquired on current entry

decrementUsages

public void decrementUsages()

Specified by:

decrementUsages in interface OCacheEntry

getChanges

public OWALChanges getChanges()

Specified by:

getChanges in interface OCacheEntry

setDelegate

public void setDelegate(OCacheEntry delegate)

getDelegate

public OCacheEntry getDelegate()

getEndLSN

public OLogSequenceNumber getEndLSN()

Specified by:

getEndLSN in interface OCacheEntry

setEndLSN

public void setEndLSN(OLogSequenceNumber endLSN)

Specified by:

setEndLSN in interface OCacheEntry

acquireEntry

public boolean acquireEntry()

Specified by:

acquireEntry in interface OCacheEntry

releaseEntry

public void releaseEntry()

Specified by:

releaseEntry in interface OCacheEntry

isReleased

public boolean isReleased()

Specified by:

isReleased in interface OCacheEntry

isAlive

public boolean isAlive()

Specified by:

isAlive in interface OCacheEntry

freeze

public boolean freeze()

Specified by:

freeze in interface OCacheEntry

isFrozen

public boolean isFrozen()

Specified by:

isFrozen in interface OCacheEntry

makeDead

public void makeDead()

Specified by:

makeDead in interface OCacheEntry

isDead

public boolean isDead()

Specified by:

isDead in interface OCacheEntry

isNewlyAllocatedPage

public boolean isNewlyAllocatedPage()

Specified by:

isNewlyAllocatedPage in interface OCacheEntry

markAllocated

public void markAllocated()

Specified by:

markAllocated in interface OCacheEntry

clearAllocationFlag

public void clearAllocationFlag()

Specified by:

clearAllocationFlag in interface OCacheEntry

insideCache

public boolean insideCache()

Specified by:

insideCache in interface OCacheEntry

getNext

public OCacheEntry getNext()

Specified by:

getNext in interface OCacheEntry

getPrev

public OCacheEntry getPrev()

Specified by:

getPrev in interface OCacheEntry

setPrev

public void setPrev(OCacheEntry prev)

Specified by:

setPrev in interface OCacheEntry

setNext

public void setNext(OCacheEntry next)

Specified by:

setNext in interface OCacheEntry

setContainer

public void setContainer(LRUList lruList)

Specified by:

setContainer in interface OCacheEntry

getContainer

public LRUList getContainer()

Specified by:

getContainer in interface OCacheEntry

getInitialLSN

public OLogSequenceNumber getInitialLSN()

Specified by:

getInitialLSN in interface OCacheEntry

setInitialLSN

public void setInitialLSN(OLogSequenceNumber lsn)

Specified by:

setInitialLSN in interface OCacheEntry

getPageKey

public PageKey getPageKey()

Specified by:

getPageKey in interface OCacheEntry

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException