com.neoworks.util
Class PushBackInputStream

java.lang.Object
  |
  +--com.neoworks.util.PushBackInputStream

public class PushBackInputStream

extends java.lang.Object

Push back InputStream. This is an InputStream (not standard) that allows data to be pushed back and subsequently reread.

Author:

Nigel Atkinson (nigel@neoworks.com)

, Original author unknown

Constructor Summary

PushBackInputStream(java.io.InputStream in)
Public constructor

Method Summary

void	close() Close the stream.
long	getPos() Get the position in the Stream
int	read(byte[] b, int off, int len) Read bytes from the stream into an array
void	unread(byte[] b, int off, int len) Unread bytes from the stream.

Methods inherited from class java.lang.Object

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

Constructor Detail

PushBackInputStream

public PushBackInputStream(java.io.InputStream in)

Public constructor

Parameters:

in - The InputStream to wrap

Method Detail

getPos

public long getPos()

Get the position in the Stream

Returns:

the position in the stream

read

public int read(byte[] b,
                int off,
                int len)
         throws java.io.IOException

Read bytes from the stream into an array

Parameters:

b - The byte array to read into

off - The offset into the byte array to begin reading into

len - The number of bytes to read

Returns:

The number of bytes read

Throws:

java.io.IOException

unread

public void unread(byte[] b,
                   int off,
                   int len)

Unread bytes from the stream.

Parameters:

b - An array of bytes to push back onto the stream

off - The offset into the byte array to push back from

len - The number of bytes to push back.

close

public void close()
           throws java.io.IOException

Close the stream.

Throws:

java.io.IOException