Java™ Platform
Standard Ed. 6

java.util.zip
Class InflaterOutputStream

java.lang.Object
  extended by java.io.OutputStream
      extended by java.io.FilterOutputStream
          extended by java.util.zip.InflaterOutputStream
All Implemented Interfaces:
Closeable, Flushable

public class InflaterOutputStream
extends FilterOutputStream

Implements an output stream filter for uncompressing data stored in the "deflate" compression format.

Since:
1.6
See Also:
InflaterInputStream, DeflaterInputStream, DeflaterOutputStream

Field Summary
protected  byte[] buf
          Output buffer for writing uncompressed data.
protected  Inflater inf
          Decompressor for this stream.
 
Fields inherited from class java.io.FilterOutputStream
out
 
Constructor Summary
InflaterOutputStream(OutputStream out)
          Creates a new output stream with a default decompressor and buffer size.
InflaterOutputStream(OutputStream out, Inflater infl)
          Creates a new output stream with the specified decompressor and a default buffer size.
InflaterOutputStream(OutputStream out, Inflater infl, int bufLen)
          Creates a new output stream with the specified decompressor and buffer size.
 
Method Summary
 void close()
          Writes any remaining uncompressed data to the output stream and closes the underlying output stream.
 void finish()
          Finishes writing uncompressed data to the output stream without closing the underlying stream.
 void flush()
          Flushes this output stream, forcing any pending buffered output bytes to be written.
 void write(byte[] b, int off, int len)
          Writes an array of bytes to the uncompressed output stream.
 void write(int b)
          Writes a byte to the uncompressed 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

inf

protected final Inflater inf
Decompressor for this stream.


buf

protected final byte[] buf
Output buffer for writing uncompressed data.

Constructor Detail

InflaterOutputStream

public InflaterOutputStream(OutputStream out)
Creates a new output stream with a default decompressor and buffer size.

Parameters:
out - output stream to write the uncompressed data to
Throws:
NullPointerException - if out is null

InflaterOutputStream

public InflaterOutputStream(OutputStream out,
                            Inflater infl)
Creates a new output stream with the specified decompressor and a default buffer size.

Parameters:
out - output stream to write the uncompressed data to
infl - decompressor ("inflater") for this stream
Throws:
NullPointerException - if out or infl is null

InflaterOutputStream

public InflaterOutputStream(OutputStream out,
                            Inflater infl,
                            int bufLen)
Creates a new output stream with the specified decompressor and buffer size.

Parameters:
out - output stream to write the uncompressed data to
infl - decompressor ("inflater") for this stream
bufLen - decompression buffer size
Throws:
IllegalArgumentException - if bufLen is <= 0
NullPointerException - if out or infl is null
Method Detail

close

public void close()
           throws IOException
Writes any remaining uncompressed data to the output stream and closes the underlying output stream.

Specified by:
close in interface Closeable
Overrides:
close in class FilterOutputStream
Throws:
IOException - if an I/O error occurs
See Also:
FilterOutputStream.flush(), FilterOutputStream.out

flush

public void flush()
           throws IOException
Flushes this output stream, forcing any pending buffered output bytes to be written.

Specified by:
flush in interface Flushable
Overrides:
flush in class FilterOutputStream
Throws:
IOException - if an I/O error occurs or this stream is already closed
See Also:
FilterOutputStream.out

finish

public void finish()
            throws IOException
Finishes writing uncompressed 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 occurs or this stream is already closed

write

public void write(int b)
           throws IOException
Writes a byte to the uncompressed output stream.

Overrides:
write in class FilterOutputStream
Parameters:
b - a single byte of compressed data to decompress and write to the output stream
Throws:
IOException - if an I/O error occurs or this stream is already closed
ZipException - if a compression (ZIP) format error occurs

write

public void write(byte[] b,
                  int off,
                  int len)
           throws IOException
Writes an array of bytes to the uncompressed output stream.

Overrides:
write in class FilterOutputStream
Parameters:
b - buffer containing compressed data to decompress and write to the output stream
off - starting offset of the compressed data within b
len - number of bytes to decompress from b
Throws:
IndexOutOfBoundsException - if off < 0, or if len < 0, or if len > b.length - off
IOException - if an I/O error occurs or this stream is already closed
NullPointerException - if b is null
ZipException - if a compression (ZIP) format error occurs
See Also:
FilterOutputStream.write(int)

Java™ Platform
Standard Ed. 6

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