    All Packages  Class Hierarchy  This Package  Previous  Next  Index

# Class java.util.zip.GZIPOutputStream

    java.lang.Object
       |
       +----java.io.OutputStream
               |
               +----java.io.FilterOutputStream
                       |
                       +----java.util.zip.DeflaterOutputStream
                               |
                               +----java.util.zip.GZIPOutputStream

public class GZIPOutputStream
extends DeflaterOutputStream

This class implements a stream filter for writing compressed data in the GZIP file format.

##

crc
  CRC-32 of uncompressed data.

##

GZIPOutputStream(OutputStream)
  Creates a new output stream with a default buffer size.
GZIPOutputStream(OutputStream, int)
  Creates a new output stream with the specified buffer size.

##

close()
  Writes remaining compressed data to the output stream and closes the underlying stream.
finish()
  Finishes writing compressed data to the output stream without closing the underlying stream.
write(byte[], int, int)
  Writes array of bytes to the compressed output stream.

##

crc

     protected CRC32 crc

  CRC-32 of uncompressed data.

##

GZIPOutputStream

     public GZIPOutputStream(OutputStream out,
                             int size) throws IOException

  Creates a new output stream with the specified buffer size.

  Parameters:
    out - the output stream
    size - the output buffer size
  Throws: IOException
    If an I/O error has occurred.

GZIPOutputStream

     public GZIPOutputStream(OutputStream out) throws IOException

  Creates a new output stream with a default buffer size.

  Parameters:
    out - the output stream
  Throws: IOException
    If an I/O error has occurred.

##

write

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

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

  Parameters:
    buf - 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.
  Overrides:
    write in class DeflaterOutputStream

finish

     public void finish() throws IOException

  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
  Overrides:
    finish in class DeflaterOutputStream

close

     public void close() throws IOException

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

  Throws: IOException
    if an I/O error has occurred
  Overrides:
    close in class DeflaterOutputStream

    All Packages  Class Hierarchy  This Package  Previous  Next  Index

Submit a bug or feature - Version 1.1.8 of Java Platform API Specification
Java is a trademark or registered trademark of Sun Microsystems, Inc. in the US and other countries.
Copyright 1995-1999 Sun Microsystems, Inc. 901 San Antonio Road,
Palo Alto, California, 94303, U.S.A. All Rights Reserved.