Package java.nio

Class NioUtils

java.lang.Object

java.nio.NioUtils

public final class NioUtils
extends Object

Method Summary

Modifier and Type	Method	Description
static void	freeDirectBuffer(ByteBuffer buffer)
static FileDescriptor	getFD(FileChannel fc)	Returns the int file descriptor from within the given FileChannel 'fc'.
static FileChannel	newFileChannel(Closeable ioObject, FileDescriptor fd, int mode)	Helps bridge between io and nio.
static byte[]	unsafeArray(ByteBuffer b)	Exposes the array backing a non-direct ByteBuffer, even if the ByteBuffer is read-only.
static int	unsafeArrayOffset(ByteBuffer b)	Exposes the array offset for the array backing a non-direct ByteBuffer, even if the ByteBuffer is read-only.

Methods inherited from class java.lang.Object

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

Method Detail

freeDirectBuffer

public static void freeDirectBuffer(ByteBuffer buffer)

getFD

public static FileDescriptor getFD(FileChannel fc)

Returns the int file descriptor from within the given FileChannel 'fc'.

newFileChannel

public static FileChannel newFileChannel(Closeable ioObject,
                                         FileDescriptor fd,
                                         int mode)

Helps bridge between io and nio.

unsafeArray

public static byte[] unsafeArray(ByteBuffer b)

Exposes the array backing a non-direct ByteBuffer, even if the ByteBuffer is read-only. Normally, attempting to access the array backing a read-only buffer throws.

unsafeArrayOffset

public static int unsafeArrayOffset(ByteBuffer b)

Exposes the array offset for the array backing a non-direct ByteBuffer, even if the ByteBuffer is read-only.