org.apache.derby.impl.io.vfmem
Class BlockedByteArrayOutputStream

java.lang.Object
  java.io.OutputStream
      org.apache.derby.impl.io.vfmem.BlockedByteArrayOutputStream

All Implemented Interfaces:

java.io.Closeable, java.io.Flushable

public class BlockedByteArrayOutputStream
extends java.io.OutputStream

Output stream writing bytes into an underlying blocked byte array.

Field Summary

private long	pos The current position of the stream.
private BlockedByteArray	src The underlying destination.

Constructor Summary

BlockedByteArrayOutputStream(BlockedByteArray src, long pos)
Creates a new stream writing data into the specified blocked byte array.

Method Summary

void	close() Closes the stream.
(package private) long	getPosition() Returns the current position.
(package private) void	setPosition(long newPos) Sets the position.
void	write(byte[] buf, int offset, int len) Writes the specified bytes into the underlying blocked byte array.
void	write(int b) Writes the single byte into the underlying blocked byte array.

Methods inherited from class java.io.OutputStream

flush, write

Methods inherited from class java.lang.Object

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

Field Detail

src

private BlockedByteArray src

The underlying destination. Set to null when closed.

pos

private long pos

The current position of the stream.

Constructor Detail

BlockedByteArrayOutputStream

public BlockedByteArrayOutputStream(BlockedByteArray src,
                                    long pos)

Creates a new stream writing data into the specified blocked byte array.

Parameters:

src - the underlying blocked byte array

pos - the initial position of stream

Method Detail

setPosition

void setPosition(long newPos)

Sets the position.

Parameters:

newPos - the new byte position

getPosition

long getPosition()

Returns the current position.

Returns:

The current byte position.

write

public void write(int b)

Writes the single byte into the underlying blocked byte array.

Specified by:

write in class java.io.OutputStream

Parameters:

b - the byte to write

write

public void write(byte[] buf,
                  int offset,
                  int len)

Writes the specified bytes into the underlying blocked byte array.

Overrides:

write in class java.io.OutputStream

Parameters:

buf - source byte array

offset - index of the first byte to write

len - the number of bytes to write

close

public void close()

Closes the stream.

Specified by:

close in interface java.io.Closeable

Overrides:

close in class java.io.OutputStream