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Java Source Code / Java Documentation » Apache Harmony Java SE » java package » java.util.zip 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


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

All known Subclasses:   java.util.zip.ZipOutputStream,  java.util.zip.GZIPOutputStream,
DeflaterOutputStream
public class DeflaterOutputStream extends FilterOutputStream (Code)
The DeflaterOutputStream class implements a stream filter for the writing of compressed data to a stream. Compression is performed by an instance of Deflater.


Field Summary
final static  intBUF_SIZE
    
protected  byte[]buf
    
protected  Deflaterdef
    
 booleandone
    

Constructor Summary
public  DeflaterOutputStream(OutputStream os, Deflater def)
     Constructs a new DeflaterOutputStream instance using os as the underlying stream.
public  DeflaterOutputStream(OutputStream os)
     Constructs a new DeflaterOutputStream instance using os as the underlying stream.
public  DeflaterOutputStream(OutputStream os, Deflater def, int bsize)
     Constructs a new DeflaterOutputStream instance using os as the underlying stream.

Method Summary
public  voidclose()
     Writes any unwritten compressed data to the underlying stream, the closes all underlying streams.
protected  voiddeflate()
     Compress the data in the input buffer and write it to the underlying stream.
public  voidfinish()
     Write any unwritten data to the underlying stream.
public  voidwrite(int i)
    
public  voidwrite(byte[] buffer, int off, int nbytes)
     Compress data from a buffer and write it to the underlying stream.

Field Detail
BUF_SIZE
final static int BUF_SIZE(Code)



buf
protected byte[] buf(Code)



def
protected Deflater def(Code)



done
boolean done(Code)




Constructor Detail
DeflaterOutputStream
public DeflaterOutputStream(OutputStream os, Deflater def)(Code)
Constructs a new DeflaterOutputStream instance using os as the underlying stream. The provided Deflater instance will be used to compress data.
Parameters:
  os - OutputStream to receive compressed data
Parameters:
  def - Deflater to perform compression



DeflaterOutputStream
public DeflaterOutputStream(OutputStream os)(Code)
Constructs a new DeflaterOutputStream instance using os as the underlying stream.
Parameters:
  os - OutputStream to receive compressed data



DeflaterOutputStream
public DeflaterOutputStream(OutputStream os, Deflater def, int bsize)(Code)
Constructs a new DeflaterOutputStream instance using os as the underlying stream. The provided Deflater instance will be used to compress data. The internal buffer for storing compressed data will be of size bsize.
Parameters:
  os - OutputStream to receive compressed data
Parameters:
  def - Deflater to perform compression
Parameters:
  bsize - size of internal compression buffer




Method Detail
close
public void close() throws IOException(Code)
Writes any unwritten compressed data to the underlying stream, the closes all underlying streams. This stream can no longer be used after close() has been called.
exception:
  java.io.IOException - If an error occurs during close.



deflate
protected void deflate() throws IOException(Code)
Compress the data in the input buffer and write it to the underlying stream.
exception:
  java.io.IOException - If an error occurs during deflation.



finish
public void finish() throws IOException(Code)
Write any unwritten data to the underlying stream. Do not close the stream. This allows subsequent Deflater's to write to the same stream. This Deflater cannot be used again.
exception:
  java.io.IOException - If an error occurs.



write
public void write(int i) throws IOException(Code)



write
public void write(byte[] buffer, int off, int nbytes) throws IOException(Code)
Compress data from a buffer and write it to the underlying stream.
Parameters:
  buffer - Buffer of data to compress
Parameters:
  off - offset in buffer to extract data from
Parameters:
  nbytes - Number of bytes of data to compress and write
exception:
  IOException - If an error occurs during writing.



Fields inherited from java.io.FilterOutputStream
protected OutputStream out(Code)(Java Doc)

Methods inherited from java.io.FilterOutputStream
public void close() throws IOException(Code)(Java Doc)
public void flush() throws IOException(Code)(Java Doc)
public void write(byte buffer) throws IOException(Code)(Java Doc)
public void write(byte buffer, int offset, int count) throws IOException(Code)(Java Doc)
public void write(int oneByte) throws IOException(Code)(Java Doc)

Methods inherited from java.io.OutputStream
public void close() throws IOException(Code)(Java Doc)
public void flush() throws IOException(Code)(Java Doc)
public void write(byte buffer) throws IOException(Code)(Java Doc)
public void write(byte buffer, int offset, int count) throws IOException(Code)(Java Doc)
abstract public void write(int oneByte) throws IOException(Code)(Java Doc)

Methods inherited from java.lang.Object
protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object object)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final public Class<? extends Object> getClass()(Code)(Java Doc)
public int hashCode()(Code)(Java Doc)
final public void notify()(Code)(Java Doc)
final public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final public void wait(long millis, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait(long millis) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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