| DeflaterOutputStream | java.util.zip |
| Java 1.1 | closeable flushable |
This class is a subclass of
java.io.FilterOutputStream; it filters a stream of
data by compressing (deflating) it and then writing the compressed
data to another output stream. To create a
DeflaterOutputStream, you must specify both the
stream it is to write to and a Deflater object to
perform the compression. You can set various options on the
Deflater object to specify just what type of
compression is to be performed. Once a
DeflaterOutputStream is created, its
write( ) and close( ) methods
are the same as those of other output streams. The
InflaterInputStream class can read data written
with a DeflaterOutputStream. A
DeflaterOutputStream writes raw compressed data;
applications often prefer one of its subclasses,
GZIPOutputStream or
ZipOutputStream, that wraps the raw compressed
data within a standard file format.
Figure 16-139. java.util.zip.DeflaterOutputStream
 public class DeflaterOutputStream extends java.io.FilterOutputStream {
// Public Constructors
public DeflaterOutputStream (java.io.OutputStream out );
public DeflaterOutputStream (java.io.OutputStream out , Deflater def );
public DeflaterOutputStream (java.io.OutputStream out , Deflater def , int size );
// Public Instance Methods
public void finish ( ) throws java.io.IOException;
// Public Methods Overriding FilterOutputStream
public void close ( ) throws java.io.IOException;
public void write (int b ) throws java.io.IOException;
public void write (byte[ ] b , int off , int len ) throws java.io.IOException;
// Protected Instance Methods
protected void deflate ( ) throws java.io.IOException;
// Protected Instance Fields
protected byte[ ] buf ;
protected Deflater def ;
}
Subclasses
GZIPOutputStream,
ZipOutputStream |
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