one.nio.mem

Class MappedFile

java.lang.Object

one.nio.mem.MappedFile

All Implemented Interfaces:

Closeable, AutoCloseable

public class MappedFile
extends Object
implements Closeable

Field Summary

Fields

Modifier and Type	Field and Description
static int	MAP_PV
static int	MAP_RO
static int	MAP_RW

Constructor Summary

Constructors

Constructor and Description
MappedFile(long size)
MappedFile(String name, long size)
MappedFile(String name, long size, int mode)

Method Summary

Modifier and Type	Method and Description
void	close()
DataStream	dataStream(ByteOrder order)
long	getAddr()
RandomAccessFile	getFile()
int	getMode()
long	getSize()
void	makeReadonly()
static long	map(RandomAccessFile f, int mode, long start, long size)
void	sync()
static void	unmap(long start, long size)

Methods inherited from class java.lang.Object

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

Field Detail

MAP_RO

public static final int MAP_RO

See Also:

Constant Field Values

MAP_RW

public static final int MAP_RW

See Also:

Constant Field Values

MAP_PV

public static final int MAP_PV

See Also:

Constant Field Values

Constructor Detail

MappedFile

public MappedFile(long size)

MappedFile

public MappedFile(String name,
                  long size)
           throws IOException

Throws:

IOException

MappedFile

public MappedFile(String name,
                  long size,
                  int mode)
           throws IOException

Throws:

IOException

Method Detail

sync

public void sync()
          throws IOException

Throws:

IOException

makeReadonly

public void makeReadonly()
                  throws IOException

Throws:

IOException

close

public void close()

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

getFile

public final RandomAccessFile getFile()

getAddr

public final long getAddr()

getSize

public final long getSize()

getMode

public int getMode()

dataStream

public DataStream dataStream(ByteOrder order)

map

public static long map(RandomAccessFile f,
                       int mode,
                       long start,
                       long size)
                throws IOException

Throws:

IOException

unmap

public static void unmap(long start,
                         long size)