Closeable
, Flushable
, AutoCloseable
GZIPOutputStream
, ZipOutputStream
public class DeflaterOutputStream extends FilterOutputStream
Modifier and Type | Field | Description |
---|---|---|
protected byte[] |
buf |
Output buffer for writing compressed data. |
protected Deflater |
def |
Compressor for this stream. |
out
Constructor | Description |
---|---|
DeflaterOutputStream |
Creates a new output stream with a default compressor and buffer size. |
DeflaterOutputStream |
Creates a new output stream with a default compressor, a default buffer size and the specified flush mode. |
DeflaterOutputStream |
Creates a new output stream with the specified compressor and a default buffer size. |
DeflaterOutputStream |
Creates a new output stream with the specified compressor, flush mode and a default buffer size. |
DeflaterOutputStream |
Creates a new output stream with the specified compressor and buffer size. |
DeflaterOutputStream |
Creates a new output stream with the specified compressor, buffer size and flush mode. |
Modifier and Type | Method | Description |
---|---|---|
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 |
flush() |
Flushes the compressed output stream. |
void |
write |
Writes an array of bytes to the compressed output stream. |
void |
write |
Writes a byte to the compressed output stream. |
write
nullOutputStream
protected Deflater def
protected byte[] buf
public DeflaterOutputStream(OutputStream out, Deflater def, int size, boolean syncFlush)
out
- the output streamdef
- the compressor ("deflater")size
- the output buffer sizesyncFlush
- if true
the flush()
method of this instance flushes the compressor with flush mode Deflater.SYNC_FLUSH
before flushing the output stream, otherwise only flushes the output streamIllegalArgumentException
- if size <= 0
public DeflaterOutputStream(OutputStream out, Deflater def, int size)
The new output stream instance is created as if by invoking the 4-argument constructor DeflaterOutputStream(out, def, size, false).
out
- the output streamdef
- the compressor ("deflater")size
- the output buffer sizeIllegalArgumentException
- if size <= 0
public DeflaterOutputStream(OutputStream out, Deflater def, boolean syncFlush)
out
- the output streamdef
- the compressor ("deflater")syncFlush
- if true
the flush()
method of this instance flushes the compressor with flush mode Deflater.SYNC_FLUSH
before flushing the output stream, otherwise only flushes the output streampublic DeflaterOutputStream(OutputStream out, Deflater def)
The new output stream instance is created as if by invoking the 3-argument constructor DeflaterOutputStream(out, def, false).
out
- the output streamdef
- the compressor ("deflater")public DeflaterOutputStream(OutputStream out, boolean syncFlush)
out
- the output streamsyncFlush
- if true
the flush()
method of this instance flushes the compressor with flush mode Deflater.SYNC_FLUSH
before flushing the output stream, otherwise only flushes the output streampublic DeflaterOutputStream(OutputStream out)
The new output stream instance is created as if by invoking the 2-argument constructor DeflaterOutputStream(out, false).
out
- the output streampublic void write(int b) throws IOException
write
in class FilterOutputStream
b
- the byte to be writtenIOException
- 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 dataIOException
- if an I/O error has occurredpublic void finish() throws IOException
IOException
- if an I/O error has occurredpublic void close() throws IOException
close
in interface AutoCloseable
close
in interface Closeable
close
in class FilterOutputStream
IOException
- if an I/O error has occurredprotected void deflate() throws IOException
IOException
- if an I/O error has occurredpublic void flush() throws IOException
syncFlush
is true
when this compressed output stream is constructed, this method first flushes the underlying compressor
with the flush mode Deflater.SYNC_FLUSH
to force all pending data to be flushed out to the output stream and then flushes the output stream. Otherwise this method only flushes the output stream without flushing the compressor
.flush
in interface Flushable
flush
in class FilterOutputStream
IOException
- if an I/O error has occurred
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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
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https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/util/zip/DeflaterOutputStream.html