Package org.teamapps.universaldb.index.log

Class RotatingLogIndex

java.lang.Object

org.teamapps.universaldb.index.log.RotatingLogIndex

All Implemented Interfaces:

LogIndex

public class RotatingLogIndex
extends java.lang.Object
implements LogIndex

Constructor Summary

Constructors

Constructor	Description
RotatingLogIndex(java.io.File basePath, java.lang.String name)
RotatingLogIndex(java.io.File basePath, java.lang.String name, int maxLogFileSize, int scanUpToFileIndex)

Method Summary

Modifier and Type	Method	Description
static long	calculatePosition(int fileIndex, int filePos)
void	close()
void	drop()
void	flush()
static int	getFileIndex(long storePosition)
static int	getFilePos(long storePosition)
long	getPosition()
long	getStoreSize()
boolean	isEmpty()
byte[]	readLog(long storePosition)
long[]	readLogPositions()
LogIterator	readLogs()
LogIterator	readLogs(long pos)
void	readLogs(java.util.List<IndexMessage> messages)
long	writeLog(byte[] bytes, boolean committed)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.teamapps.universaldb.index.log.LogIndex

readAllLogs, readLogs, writeLog

Constructor Details

RotatingLogIndex

public RotatingLogIndex(java.io.File basePath,
java.lang.String name)

RotatingLogIndex

public RotatingLogIndex(java.io.File basePath,
java.lang.String name,
int maxLogFileSize,
int scanUpToFileIndex)

Method Details

writeLog

public long writeLog(byte[] bytes,
boolean committed)

Specified by:

writeLog in interface LogIndex

readLog

public byte[] readLog(long storePosition)

Specified by:

readLog in interface LogIndex

readLogs

public LogIterator readLogs()

Specified by:

readLogs in interface LogIndex

readLogs

public LogIterator readLogs(long pos)

Specified by:

readLogs in interface LogIndex

readLogs

public void readLogs(java.util.List<IndexMessage> messages)

Specified by:

readLogs in interface LogIndex

readLogPositions

public long[] readLogPositions()

Specified by:

readLogPositions in interface LogIndex

getPosition

public long getPosition()

Specified by:

getPosition in interface LogIndex

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface LogIndex

getStoreSize

public long getStoreSize()

Specified by:

getStoreSize in interface LogIndex

flush

public void flush()

Specified by:

flush in interface LogIndex

close

public void close()

Specified by:

close in interface LogIndex

drop

public void drop()

Specified by:

drop in interface LogIndex

calculatePosition

public static long calculatePosition(int fileIndex,
int filePos)

getFileIndex

public static int getFileIndex(long storePosition)

getFilePos

public static int getFilePos(long storePosition)