org.wkb4j.engine
Class ResetableByteArrayInputStream

java.lang.Object
  |
  +--java.io.InputStream
        |
        +--java.io.ByteArrayInputStream
              |
              +--org.wkb4j.engine.ResetableByteArrayInputStream

public class ResetableByteArrayInputStream

extends java.io.ByteArrayInputStream

ResetableByteArrayInputStream is a ByteArrayInputStream where the internal buffer can be reinitialized with a new input buffer, removing the need for destroying and recreating a different ByteArrayInputStream for each input buffer. It is especially useful if several other InputStreams are layered on top of it.

Version:

$Revision: 1.4 $ $Date: 2003/06/14 22:31:26 $

Author:

David Garnier
Creation date: 3 juil. 2002 00:08:32

Field Summary

Fields inherited from class java.io.ByteArrayInputStream

buf, count, mark, pos

Fields inherited from class java.io.InputStream

Constructor Summary

ResetableByteArrayInputStream(byte[] buf)
Creates a ResetableByteArrayInputStream so that it uses buf as its buffer array.

ResetableByteArrayInputStream(byte[] buf, int offset, int length)
Creates ResetableByteArrayInputStream that uses buf as its buffer array.

Method Summary

int	read() This method was subclassed here because in is synchronized in the default implementation and we don't need that.
void	reset(byte[] newBuf) Reset an ResetableByteArrayInputStream to its prime state.
void	reset(byte[] newBuf, int offset, int length) Reset an ResetableByteArrayInputStream to its prime state.

Methods inherited from class java.io.ByteArrayInputStream

available, close, mark, markSupported, read, reset, skip

Methods inherited from class java.io.InputStream

read

Methods inherited from class java.lang.Object

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

Constructor Detail

ResetableByteArrayInputStream

public ResetableByteArrayInputStream(byte[] buf)

Creates a ResetableByteArrayInputStream so that it uses buf as its buffer array. The buffer array is not copied. The initial value of pos is 0 and the initial value of count is the length of buf.

Parameters:

buf - the input buffer.

ResetableByteArrayInputStream

public ResetableByteArrayInputStream(byte[] buf,
                                     int offset,
                                     int length)

Creates ResetableByteArrayInputStream that uses buf as its buffer array. The initial value of pos is offset and the initial value of count is offset+len. The buffer array is not copied. The buffer's mark is set to the specified offset.

Parameters:

buf - the input buffer.

offset - the offset in the buffer of the first byte to read.

length - the maximum number of bytes to read from the buffer.

Method Detail

reset

public final void reset(byte[] newBuf)

Reset an ResetableByteArrayInputStream to its prime state. When this method return, this ResetableByteArrayInputStream is in exactly the same state as if it was just instantiated with the same arguments.

reset

public final void reset(byte[] newBuf,
                        int offset,
                        int length)

Reset an ResetableByteArrayInputStream to its prime state. When this method return, this ResetableByteArrayInputStream is in exactly the same state as if it was just instantiated with the same arguments.

Parameters:

offset - the offset in the buffer of the first byte to read.

length - the maximum number of bytes to read from the buffer.

read

public final int read()

This method was subclassed here because in is synchronized in the default implementation and we don't need that.
See the general contract for read in ByteArrayInputStream.

Overrides:

read in class java.io.ByteArrayInputStream