java.util.zip

Class DeflaterOutputStream

public class DeflaterOutputStream extends FilterOutputStream

This is a special FilterOutputStream deflating the bytes that are written through it. It uses the Deflater for deflating. A special thing to be noted is that flush() doesn't flush everything in Sun's JDK, but it does so in jazzlib. This is because Sun's Deflater doesn't have a way to flush() everything, without finishing the stream.

UNKNOWN: Jan 11, 2001

Field Summary
protected byte[]	buf This buffer is used temporarily to retrieve the bytes from the deflater and write them to the underlying output stream.
protected Deflater	def The deflater which is used to deflate the stream.

Constructor Summary
	DeflaterOutputStream(OutputStream out) Creates a new DeflaterOutputStream with a default Deflater and default buffer size.
	DeflaterOutputStream(OutputStream out, Deflater defl) Creates a new DeflaterOutputStream with the given Deflater and default buffer size.
	DeflaterOutputStream(OutputStream out, Deflater defl, int bufsize) Creates a new DeflaterOutputStream with the given Deflater and buffer size.

Method Summary
void	close() Calls finish() and closes the stream.
protected void	deflate() Deflates everything in the def's input buffers.
void	finish() Finishes the stream by calling finish() on the deflater.
void	flush() Flushes the stream by calling flush() on the deflater and then on the underlying stream.
void	write(int bval) Writes a single byte to the compressed output stream.
void	write(byte[] buf, int off, int len) Writes a len bytes from an array to the compressed stream.

Field Detail

buf

protected byte[] buf

This buffer is used temporarily to retrieve the bytes from the deflater and write them to the underlying output stream.

def

protected Deflater def

The deflater which is used to deflate the stream.

Constructor Detail

DeflaterOutputStream

public DeflaterOutputStream(OutputStream out)

Creates a new DeflaterOutputStream with a default Deflater and default buffer size.

Parameters: out the output stream where deflated output should be written.

DeflaterOutputStream

public DeflaterOutputStream(OutputStream out, Deflater defl)

Creates a new DeflaterOutputStream with the given Deflater and default buffer size.

Parameters: out the output stream where deflated output should be written. defl the underlying deflater.

DeflaterOutputStream

public DeflaterOutputStream(OutputStream out, Deflater defl, int bufsize)

Creates a new DeflaterOutputStream with the given Deflater and buffer size.

Parameters: out the output stream where deflated output should be written. defl the underlying deflater. bufsize the buffer size.

Throws: IllegalArgumentException if bufsize isn't positive.

Parameters: bval the byte value.

write

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

Writes a len bytes from an array to the compressed stream.

Parameters: buf the byte array. off the offset into the byte array where to start. len the number of bytes to write.