java.util.zip
Class DeflaterOutputStream
- Closeable, Flushable
This is a special FilterOutputStream deflating the bytes that are
written through it. It uses the Deflater for deflating.
A special thing to be noted is that flush() doesn't flush
everything in Sun's JDK, but it does so in jazzlib. This is because
Sun's Deflater doesn't have a way to flush() everything, without
finishing the stream.
protected byte[] | buf- This buffer is used temporarily to retrieve the bytes from the
deflater and write them to the underlying output stream.
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protected Deflater | def- The deflater which is used to deflate the stream.
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void | close()- Calls finish() and closes the stream.
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protected void | deflate()- Deflates everything in the def's input buffers.
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void | finish()- Finishes the stream by calling finish() on the deflater.
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void | flush()- Flushes the stream by calling flush() on the deflater and then
on the underlying stream.
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void | write(byte[] buf, int off, int len)- Writes a len bytes from an array to the compressed stream.
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void | write(int bval)- Writes a single byte to the compressed output stream.
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clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait |
buf
protected byte[] buf
This buffer is used temporarily to retrieve the bytes from the
deflater and write them to the underlying output stream.
def
protected Deflater def
The deflater which is used to deflate the stream.
DeflaterOutputStream
public DeflaterOutputStream(OutputStream out)
Creates a new DeflaterOutputStream with a default Deflater and
default buffer size.
out - the output stream where deflated output should be written.
DeflaterOutputStream
public DeflaterOutputStream(OutputStream out,
Deflater defl) Creates a new DeflaterOutputStream with the given Deflater and
default buffer size.
out - the output stream where deflated output should be written.defl - the underlying deflater.
DeflaterOutputStream
public DeflaterOutputStream(OutputStream out,
Deflater defl,
int bufsize) Creates a new DeflaterOutputStream with the given Deflater and
buffer size.
out - the output stream where deflated output should be written.defl - the underlying deflater.bufsize - the buffer size.
deflate
protected void deflate()
throws IOException Deflates everything in the def's input buffers. This will call
def.deflate() until all bytes from the input buffers
are processed.
finish
public void finish()
throws IOException Finishes the stream by calling finish() on the deflater. This
was the only way to ensure that all bytes are flushed in Sun's
JDK.
flush
public void flush()
throws IOException Flushes the stream by calling flush() on the deflater and then
on the underlying stream. This ensures that all bytes are
flushed. This function doesn't work in Sun's JDK, but only in
jazzlib.
- flush in interface Flushable
- flush in interface FilterOutputStream
write
public void write(byte[] buf,
int off,
int len)
throws IOException Writes a len bytes from an array to the compressed stream.
- write in interface FilterOutputStream
buf - the byte array.off - the offset into the byte array where to start.len - the number of bytes to write.
DeflaterOutputStream.java - Output filter for compressing.
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