Package org.apache.lucene.mockfile

Class FilterSeekableByteChannel

java.lang.Object

org.apache.lucene.mockfile.FilterSeekableByteChannel

All Implemented Interfaces:

Closeable, AutoCloseable, ByteChannel, Channel, ReadableByteChannel, SeekableByteChannel, WritableByteChannel

public class FilterSeekableByteChannel
extends Object
implements SeekableByteChannel

A FilterSeekableByteChannel contains another SeekableByteChannel, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.

Field Summary

Fields

Modifier and Type	Field	Description
protected SeekableByteChannel	delegate	The underlying SeekableByteChannel instance.

Constructor Summary

Constructors

Constructor	Description
FilterSeekableByteChannel(SeekableByteChannel delegate)	Construct a FilterSeekableByteChannel based on the specified base channel.

Method Summary

Modifier and Type	Method	Description
void	close()
boolean	isOpen()
long	position()
SeekableByteChannel	position(long newPosition)
int	read(ByteBuffer dst)
long	size()
SeekableByteChannel	truncate(long size)
int	write(ByteBuffer src)

Methods inherited from class java.lang.Object

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

Field Detail

delegate

protected final SeekableByteChannel delegate

The underlying SeekableByteChannel instance.

Constructor Detail

FilterSeekableByteChannel

public FilterSeekableByteChannel(SeekableByteChannel delegate)

Construct a FilterSeekableByteChannel based on the specified base channel.

Note that base channel is closed if this channel is closed.

Parameters:

delegate - specified base channel.

Method Detail

isOpen

public boolean isOpen()

Specified by:

isOpen in interface Channel

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Channel

Specified by:

close in interface Closeable

Throws:

IOException

read

public int read(ByteBuffer dst)
         throws IOException

Specified by:

read in interface ReadableByteChannel

Specified by:

read in interface SeekableByteChannel

Throws:

IOException

write

public int write(ByteBuffer src)
          throws IOException

Specified by:

write in interface SeekableByteChannel

Specified by:

write in interface WritableByteChannel

Throws:

IOException

position

public long position()
              throws IOException

Specified by:

position in interface SeekableByteChannel

Throws:

IOException

position

public SeekableByteChannel position(long newPosition)
                             throws IOException

Specified by:

position in interface SeekableByteChannel

Throws:

IOException

size

public long size()
          throws IOException

Specified by:

size in interface SeekableByteChannel

Throws:

IOException

truncate

public SeekableByteChannel truncate(long size)
                             throws IOException

Specified by:

truncate in interface SeekableByteChannel

Throws:

IOException