org.apache.batik.ext.awt.image.codec.util

Class ForwardSeekableStream

public class ForwardSeekableStream extends SeekableStream

A subclass of SeekableStream that may be used to wrap a regular InputStream efficiently. Seeking backwards is not supported.

Constructor Summary
	ForwardSeekableStream(InputStream src) Constructs a `InputStreamForwardSeekableStream` from a regular `InputStream`.

Method Summary
int	available() Forwards the request to the real `InputStream`.
boolean	canSeekBackwards() Returns `false` since seking backwards is not supported.
void	close() Forwards the request to the real `InputStream`.
long	getFilePointer() Returns the current position in the stream (bytes read).
void	mark(int readLimit) Forwards the request to the real `InputStream`.
boolean	markSupported() Forwards the request to the real `InputStream`.
int	read() Forwards the request to the real `InputStream`.
int	read(byte[] b, int off, int len) Forwards the request to the real `InputStream`.
void	reset() Forwards the request to the real `InputStream`.
void	seek(long pos) Seeks forward to the given position in the stream.
long	skip(long n) Forwards the request to the real `InputStream`.

Constructor Detail

ForwardSeekableStream

public ForwardSeekableStream(InputStream src)

Constructs a InputStreamForwardSeekableStream from a regular InputStream.

Method Detail

available

public final int available()

Forwards the request to the real InputStream.

canSeekBackwards

public final boolean canSeekBackwards()

Returns false since seking backwards is not supported.

close

public final void close()

Forwards the request to the real InputStream.

getFilePointer

public final long getFilePointer()

Returns the current position in the stream (bytes read).

mark

public final void mark(int readLimit)

Forwards the request to the real InputStream. We use markPos

markSupported

public boolean markSupported()

Forwards the request to the real InputStream.

read

public final int read()

Forwards the request to the real InputStream.

read

public final int read(byte[] b, int off, int len)

Forwards the request to the real InputStream.

reset

public final void reset()

Forwards the request to the real InputStream. We use markPos

seek

public final void seek(long pos)

Seeks forward to the given position in the stream. If pos is smaller than the current position as returned by getFilePointer(), nothing happens.

skip

public final long skip(long n)

Forwards the request to the real InputStream.

Copyright B) 2008 Apache Software Foundation. All Rights Reserved.