org.mapdb

Class Volume.MappedFileVol

java.lang.Object

org.mapdb.Volume

org.mapdb.Volume.ByteBufferVol

org.mapdb.Volume.MappedFileVol

Enclosing class:

Volume

public static final class Volume.MappedFileVol
extends Volume.ByteBufferVol

Nested Class Summary

Nested classes/interfaces inherited from class org.mapdb.Volume

Volume.ByteBufferVol, Volume.Factory, Volume.FileChannelVol, Volume.MappedFileVol, Volume.MemoryVol

Field Summary

Fields

Modifier and Type	Field and Description
protected File	file
protected FileChannel	fileChannel
protected FileChannel.MapMode	mapMode
protected RandomAccessFile	raf

Fields inherited from class org.mapdb.Volume.ByteBufferVol

asyncWriteEnabled, chunks, chunkShift, chunkSize, chunkSizeModMask, growLock, hasLimit, readOnly, sizeLimit

Constructor Summary

Constructors

Constructor and Description
MappedFileVol(File file, boolean readOnly, long sizeLimit, int chunkShift, int sizeIncrement)
MappedFileVol(File file, boolean readOnly, long sizeLimit, int chunkShift, int sizeIncrement, boolean asyncWriteEnabled)

Method Summary

Modifier and Type	Method and Description
void	close()
void	deleteFile()
File	getFile() returns underlying file if it exists
protected ByteBuffer	makeNewBuffer(long offset)
void	sync()
void	truncate(long size)

Methods inherited from class org.mapdb.Volume.ByteBufferVol

getByte, getDataInput, getInt, getLong, isEmpty, isSliced, putByte, putData, putData, putInt, putLong, tryAvailable, unmap

Methods inherited from class org.mapdb.Volume

ensureAvailable, fileFactory, fileFactory, fileFactory, getPackedLong, getSixLong, getUnsignedByte, getUnsignedShort, memoryFactory, putPackedLong, putSixLong, putUnsignedByte, putUnsignedShort, volumeForFile, volumeForFile, volumeTransfer

Methods inherited from class java.lang.Object

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

Field Detail

file

protected final File file

fileChannel

protected final FileChannel fileChannel

mapMode

protected final FileChannel.MapMode mapMode

raf

protected final RandomAccessFile raf

Constructor Detail

MappedFileVol

public MappedFileVol(File file,
                     boolean readOnly,
                     long sizeLimit,
                     int chunkShift,
                     int sizeIncrement)

MappedFileVol

public MappedFileVol(File file,
                     boolean readOnly,
                     long sizeLimit,
                     int chunkShift,
                     int sizeIncrement,
                     boolean asyncWriteEnabled)

Method Detail

close

public void close()

Specified by:

close in class Volume

sync

public void sync()

Specified by:

sync in class Volume

makeNewBuffer

protected ByteBuffer makeNewBuffer(long offset)

Specified by:

makeNewBuffer in class Volume.ByteBufferVol

deleteFile

public void deleteFile()

Specified by:

deleteFile in class Volume

getFile

public File getFile()

Description copied from class: Volume

returns underlying file if it exists

Specified by:

getFile in class Volume

truncate

public void truncate(long size)

Specified by:

truncate in class Volume