org.apache.activemq.artemis.core.journal.impl

Class JournalFileImpl

java.lang.Object

org.apache.activemq.artemis.core.journal.impl.JournalFileImpl

All Implemented Interfaces:

JournalFile

public class JournalFileImpl
extends Object
implements JournalFile

Constructor Summary

Constructors

Constructor and Description
JournalFileImpl(SequentialFile file, long fileID, int version)

Method Summary

Modifier and Type	Method and Description
void	addSize(int bytes)
String	debug() Receive debug information about the journal
void	decPosCount()
void	decSize(int bytes)
SequentialFile	getFile()
long	getFileID()
int	getJournalVersion()
int	getLiveSize()
int	getNegCount(JournalFile file)
long	getOffset()
int	getPosCount()
int	getRecordID() This is a field to identify that records on this file actually belong to the current file.
int	getTotalNegativeToOthers() The total number of deletes this file has
void	incNegCount(JournalFile file)
void	incPosCount()
boolean	isCanReclaim() Whether this file's contents can deleted and the file reused.
boolean	isNegReclaimCriteria() Whether this file deletes are on files that are either marked for reclaim or have already been reclaimed
boolean	isPosReclaimCriteria() Whether this file additions all have a delete in some other file
void	setNegReclaimCriteria()
void	setOffset(long offset)
void	setPosReclaimCriteria()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

JournalFileImpl

public JournalFileImpl(SequentialFile file,
                       long fileID,
                       int version)

Method Detail

getPosCount

public int getPosCount()

Specified by:

getPosCount in interface JournalFile

isPosReclaimCriteria

public boolean isPosReclaimCriteria()

Description copied from interface: JournalFile

Whether this file additions all have a delete in some other file

Specified by:

isPosReclaimCriteria in interface JournalFile

setPosReclaimCriteria

public void setPosReclaimCriteria()

Specified by:

setPosReclaimCriteria in interface JournalFile

isNegReclaimCriteria

public boolean isNegReclaimCriteria()

Description copied from interface: JournalFile

Whether this file deletes are on files that are either marked for reclaim or have already been reclaimed

Specified by:

isNegReclaimCriteria in interface JournalFile

setNegReclaimCriteria

public void setNegReclaimCriteria()

Specified by:

setNegReclaimCriteria in interface JournalFile

isCanReclaim

public boolean isCanReclaim()

Description copied from interface: JournalFile

Whether this file's contents can deleted and the file reused.

Specified by:

isCanReclaim in interface JournalFile

Returns:

true if the file can already be deleted.

incNegCount

public void incNegCount(JournalFile file)

Specified by:

incNegCount in interface JournalFile

getNegCount

public int getNegCount(JournalFile file)

Specified by:

getNegCount in interface JournalFile

getJournalVersion

public int getJournalVersion()

Specified by:

getJournalVersion in interface JournalFile

incPosCount

public void incPosCount()

Specified by:

incPosCount in interface JournalFile

decPosCount

public void decPosCount()

Specified by:

decPosCount in interface JournalFile

getOffset

public long getOffset()

getFileID

public long getFileID()

Specified by:

getFileID in interface JournalFile

getRecordID

public int getRecordID()

Description copied from interface: JournalFile

This is a field to identify that records on this file actually belong to the current file. The possible implementation for this is fileID & Integer.MAX_VALUE

Specified by:

getRecordID in interface JournalFile

setOffset

public void setOffset(long offset)

getFile

public SequentialFile getFile()

Specified by:

getFile in interface JournalFile

toString

public String toString()

Overrides:

toString in class Object

debug

public String debug()

Receive debug information about the journal

addSize

public void addSize(int bytes)

Specified by:

addSize in interface JournalFile

decSize

public void decSize(int bytes)

Specified by:

decSize in interface JournalFile

getLiveSize

public int getLiveSize()

Specified by:

getLiveSize in interface JournalFile

getTotalNegativeToOthers

public int getTotalNegativeToOthers()

Description copied from interface: JournalFile

The total number of deletes this file has

Specified by:

getTotalNegativeToOthers in interface JournalFile