java.nio.channels

Class FileChannel

java.lang.Object

java.nio.channels.spi.AbstractInterruptibleChannel

java.nio.channels.FileChannel

All Implemented Interfaces:

Closeable, AutoCloseable, Channel, GatheringByteChannel, InterruptibleChannel, ReadableByteChannel, ScatteringByteChannel, WritableByteChannel

Direct Known Subclasses:

ChannelFunctionFileChannel

public abstract class FileChannel
extends AbstractInterruptibleChannel
implements GatheringByteChannel, ScatteringByteChannel

Compatibility stub.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FileChannel.MapMode

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	FileChannel()

Method Summary

Modifier and Type	Method and Description
abstract void	force(boolean metaData)
FileLock	lock()
abstract FileLock	lock(long position, long size, boolean shared)
abstract MappedByteBuffer	map(FileChannel.MapMode mode, long position, long size)
static FileChannel	open(Path path, OpenOption... options)
abstract long	position()
abstract FileChannel	position(long newPosition)
abstract int	read(ByteBuffer dst)
long	read(ByteBuffer[] dsts)
abstract long	read(ByteBuffer[] dsts, int offset, int length)
abstract int	read(ByteBuffer dst, long position)
abstract long	size()
abstract long	transferFrom(ReadableByteChannel src, long position, long count)
abstract long	transferTo(long position, long count, WritableByteChannel target)
abstract FileChannel	truncate(long size)
FileLock	tryLock()
abstract FileLock	tryLock(long position, long size, boolean shared)
abstract int	write(ByteBuffer src)
long	write(ByteBuffer[] srcs)
abstract long	write(ByteBuffer[] srcs, int offset, int length)
abstract int	write(ByteBuffer src, long position)

Methods inherited from class java.nio.channels.spi.AbstractInterruptibleChannel

begin, close, end, implCloseChannel, isOpen

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.nio.channels.Channel

close, isOpen

Constructor Detail

FileChannel

protected FileChannel()

Method Detail

open

public static FileChannel open(Path path,
                               OpenOption... options)
                        throws IOException

Throws:

IOException

read

public abstract int read(ByteBuffer dst)
                  throws IOException

Specified by:

read in interface ReadableByteChannel

Throws:

IOException

read

public abstract long read(ByteBuffer[] dsts,
                          int offset,
                          int length)
                   throws IOException

Specified by:

read in interface ScatteringByteChannel

Throws:

IOException

read

public final long read(ByteBuffer[] dsts)
                throws IOException

Specified by:

read in interface ScatteringByteChannel

Throws:

IOException

write

public abstract int write(ByteBuffer src)
                   throws IOException

Specified by:

write in interface WritableByteChannel

Throws:

IOException

write

public abstract long write(ByteBuffer[] srcs,
                           int offset,
                           int length)
                    throws IOException

Specified by:

write in interface GatheringByteChannel

Throws:

IOException

write

public final long write(ByteBuffer[] srcs)
                 throws IOException

Specified by:

write in interface GatheringByteChannel

Throws:

IOException

position

public abstract long position()
                       throws IOException

Throws:

IOException

position

public abstract FileChannel position(long newPosition)
                              throws IOException

Throws:

IOException

size

public abstract long size()
                   throws IOException

Throws:

IOException

truncate

public abstract FileChannel truncate(long size)
                              throws IOException

Throws:

IOException

force

public abstract void force(boolean metaData)
                    throws IOException

Throws:

IOException

transferTo

public abstract long transferTo(long position,
                                long count,
                                WritableByteChannel target)
                         throws IOException

Throws:

IOException

transferFrom

public abstract long transferFrom(ReadableByteChannel src,
                                  long position,
                                  long count)
                           throws IOException

Throws:

IOException

read

public abstract int read(ByteBuffer dst,
                         long position)
                  throws IOException

Throws:

IOException

write

public abstract int write(ByteBuffer src,
                          long position)
                   throws IOException

Throws:

IOException

map

public abstract MappedByteBuffer map(FileChannel.MapMode mode,
                                     long position,
                                     long size)
                              throws IOException

Throws:

IOException

lock

public abstract FileLock lock(long position,
                              long size,
                              boolean shared)
                       throws IOException

Throws:

IOException

lock

public final FileLock lock()
                    throws IOException

Throws:

IOException

tryLock

public abstract FileLock tryLock(long position,
                                 long size,
                                 boolean shared)
                          throws IOException

Throws:

IOException

tryLock

public final FileLock tryLock()
                       throws IOException

Throws:

IOException