java.util.zip
Class DeflaterOutputStream

java.lang.Object
  java.io.OutputStream
      java.io.FilterOutputStream
          java.util.zip.DeflaterOutputStream

All Implemented Interfaces:

Closeable, Flushable

Direct Known Subclasses:

GZIPOutputStream, ZipOutputStream

public class DeflaterOutputStream
extends FilterOutputStream

Disabled: no SafeJ information.

This class implements an output stream filter for compressing data in the "deflate" compression format. It is also used as the basis for other types of compression filters, such as GZIPOutputStream.

See Also:

Deflater

Field Summary

protected byte[]	buf Output buffer for writing compressed data.
protected Deflater	def Compressor for this stream.

Fields inherited from class java.io.FilterOutputStream

out

Constructor Summary

DeflaterOutputStream(OutputStream out)
Creates a new output stream with a default compressor and buffer size.

DeflaterOutputStream(OutputStream out, boolean syncFlush)
Creates a new output stream with a default compressor, a default buffer size and the specified flush mode.

DeflaterOutputStream(OutputStream out, Deflater def)
Creates a new output stream with the specified compressor and a default buffer size.

DeflaterOutputStream(OutputStream out, Deflater def, boolean syncFlush)
Creates a new output stream with the specified compressor, flush mode and a default buffer size.

DeflaterOutputStream(OutputStream out, Deflater def, int size)
Creates a new output stream with the specified compressor and buffer size.

DeflaterOutputStream(OutputStream out, Deflater def, int size, boolean syncFlush)
Creates a new output stream with the specified compressor, buffer size and flush mode.

Method Summary

void	close() Writes remaining compressed data to the output stream and closes the underlying stream.
protected void	deflate() Writes next block of compressed data to the output stream.
void	finish() Finishes writing compressed data to the output stream without closing the underlying stream.
void	flush() Flushes the compressed output stream.
void	write(byte[] b, int off, int len) Writes an array of bytes to the compressed output stream.
void	write(int b) Writes a byte to the compressed output stream.

Methods inherited from class java.io.FilterOutputStream

write

Methods inherited from class java.lang.Object

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

Field Detail

def

protected Deflater def

Class is disabled.

Compressor for this stream.

buf

protected byte[] buf

Class is disabled.

Output buffer for writing compressed data.

Constructor Detail

DeflaterOutputStream

public DeflaterOutputStream(OutputStream out,
                            Deflater def,
                            int size,
                            boolean syncFlush)

Class is disabled.

Creates a new output stream with the specified compressor, buffer size and flush mode.

Parameters:

out - the output stream

def - the compressor ("deflater")

size - the output buffer size

syncFlush - if true the flush() method of this instance flushes the compressor with flush mode Deflater.SYNC_FLUSH before flushing the output stream, otherwise only flushes the output stream

Throws:

IllegalArgumentException - if size is <= 0

Since:

1.7

DeflaterOutputStream

public DeflaterOutputStream(OutputStream out,
                            Deflater def,
                            int size)

Class is disabled.

Creates a new output stream with the specified compressor and buffer size.

The new output stream instance is created as if by invoking the 4-argument constructor DeflaterOutputStream(out, def, size, false).

Parameters:

out - the output stream

def - the compressor ("deflater")

size - the output buffer size

Throws:

IllegalArgumentException - if size is <= 0

DeflaterOutputStream

public DeflaterOutputStream(OutputStream out,
                            Deflater def,
                            boolean syncFlush)

Class is disabled.

Creates a new output stream with the specified compressor, flush mode and a default buffer size.

Parameters:

out - the output stream

def - the compressor ("deflater")

syncFlush - if true the flush() method of this instance flushes the compressor with flush mode Deflater.SYNC_FLUSH before flushing the output stream, otherwise only flushes the output stream

Since:

1.7

DeflaterOutputStream

public DeflaterOutputStream(OutputStream out,
                            Deflater def)

Class is disabled.

Creates a new output stream with the specified compressor and a default buffer size.

The new output stream instance is created as if by invoking the 3-argument constructor DeflaterOutputStream(out, def, false).

Parameters:

out - the output stream

def - the compressor ("deflater")

DeflaterOutputStream

public DeflaterOutputStream(OutputStream out,
                            boolean syncFlush)

Class is disabled.

Creates a new output stream with a default compressor, a default buffer size and the specified flush mode.

Parameters:

out - the output stream

syncFlush - if true the flush() method of this instance flushes the compressor with flush mode Deflater.SYNC_FLUSH before flushing the output stream, otherwise only flushes the output stream

Since:

1.7

DeflaterOutputStream

public DeflaterOutputStream(OutputStream out)

Class is disabled.

Creates a new output stream with a default compressor and buffer size.

The new output stream instance is created as if by invoking the 2-argument constructor DeflaterOutputStream(out, false).

Parameters:

out - the output stream

Method Detail

write

public void write(int b)
           throws IOException

Class is disabled.

Writes a byte to the compressed output stream. This method will block until the byte can be written.

Overrides:

write in class FilterOutputStream

Parameters:

b - the byte to be written

Throws:

IOException - if an I/O error has occurred

write

public void write(byte[] b,
                  int off,
                  int len)
           throws IOException

Class is disabled.

Writes an array of bytes to the compressed output stream. This method will block until all the bytes are written.

Overrides:

write in class FilterOutputStream

Parameters:

b - the data to be written

off - the start offset of the data

len - the length of the data

Throws:

IOException - if an I/O error has occurred

See Also:

FilterOutputStream.write(int)

finish

public void finish()
            throws IOException

Class is disabled.

Finishes writing compressed data to the output stream without closing the underlying stream. Use this method when applying multiple filters in succession to the same output stream.

Throws:

IOException - if an I/O error has occurred

close

public void close()
           throws IOException

Class is disabled.

Writes remaining compressed data to the output stream and closes the underlying stream.

Specified by:

close in interface Closeable

Overrides:

close in class FilterOutputStream

Throws:

IOException - if an I/O error has occurred

See Also:

FilterOutputStream.flush(), FilterOutputStream.out

deflate

protected void deflate()
                throws IOException

Class is disabled.

Writes next block of compressed data to the output stream.

Throws:

IOException - if an I/O error has occurred

flush

public void flush()
           throws IOException

Class is disabled.

Flushes the compressed output stream. If syncFlush is true when this compressed output stream is constructed, this method first flushes the underlying compressor with the flush mode Deflater.SYNC_FLUSH to force all pending data to be flushed out to the output stream and then flushes the output stream. Otherwise this method only flushes the output stream without flushing the compressor.

Specified by:

flush in interface Flushable

Overrides:

flush in class FilterOutputStream

Throws:

IOException - if an I/O error has occurred

Since:

1.7

See Also:

FilterOutputStream.out