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Java™ Platform Standard Ed. 6 |
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java.lang.Object java.io.OutputStream java.io.FilterOutputStream java.util.zip.DeflaterOutputStream
public class DeflaterOutputStream
This class implements an output stream filter for compressing data in the "deflate" compression format. It is also used as the basis for other types of compression filters, such as GZIPOutputStream.
Deflater
Field Summary | |
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protected byte[] |
buf
Output buffer for writing compressed data. |
protected Deflater |
def
Compressor for this stream. |
Fields inherited from class java.io.FilterOutputStream |
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out |
Constructor Summary | |
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DeflaterOutputStream(OutputStream out)
Creates a new output stream with a default compressor and buffer size. |
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DeflaterOutputStream(OutputStream out,
Deflater def)
Creates a new output stream with the specified compressor and a default buffer size. |
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DeflaterOutputStream(OutputStream out,
Deflater def,
int size)
Creates a new output stream with the specified compressor and buffer size. |
Method Summary | |
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void |
close()
Writes remaining compressed data to the output stream and closes the underlying stream. |
protected void |
deflate()
Writes next block of compressed data to the output stream. |
void |
finish()
Finishes writing compressed data to the output stream without closing the underlying stream. |
void |
write(byte[] b,
int off,
int len)
Writes an array of bytes to the compressed output stream. |
void |
write(int b)
Writes a byte to the compressed output stream. |
Methods inherited from class java.io.FilterOutputStream |
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flush, write |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected Deflater def
protected byte[] buf
Constructor Detail |
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public DeflaterOutputStream(OutputStream out, Deflater def, int size)
out
- the output streamdef
- the compressor ("deflater")size
- the output buffer size
IllegalArgumentException
- if size is <= 0public DeflaterOutputStream(OutputStream out, Deflater def)
out
- the output streamdef
- the compressor ("deflater")public DeflaterOutputStream(OutputStream out)
out
- the output streamMethod Detail |
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public void write(int b) throws IOException
write
in class FilterOutputStream
b
- the byte to be written
IOException
- if an I/O error has occurredpublic void write(byte[] b, int off, int len) throws IOException
write
in class FilterOutputStream
b
- the data to be writtenoff
- the start offset of the datalen
- the length of the data
IOException
- if an I/O error has occurredFilterOutputStream.write(int)
public void finish() throws IOException
IOException
- if an I/O error has occurredpublic void close() throws IOException
close
in interface Closeable
close
in class FilterOutputStream
IOException
- if an I/O error has occurredFilterOutputStream.flush()
,
FilterOutputStream.out
protected void deflate() throws IOException
IOException
- if an I/O error has occurred
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Java™ Platform Standard Ed. 6 |
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Copyright 2009 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.