org.jretty.util.zip

类 DeflaterOutputStream

java.lang.Object

java.io.OutputStream

java.io.FilterOutputStream

org.jretty.util.zip.DeflaterOutputStream

所有已实现的接口:

Closeable, Flushable, AutoCloseable

直接已知子类:

ZipOutputStream

public class DeflaterOutputStream
extends FilterOutputStream

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.

版本:

1.36, 03/13/06

作者:

David Connelly

另请参阅:

Deflater

字段概要

字段

限定符和类型	字段和说明
protected byte[]	buf Output buffer for writing compressed data.
protected Deflater	def Compressor for this stream.

从类继承的字段 java.io.FilterOutputStream

out

构造器概要

构造器

构造器和说明
DeflaterOutputStream(OutputStream out) Creates a new output stream with a default compressor and buffer size.
DeflaterOutputStream(OutputStream out, Deflater def) Creates a new output stream with the specified compressor and a default buffer size.
DeflaterOutputStream(OutputStream out, Deflater def, int size) Creates a new output stream with the specified compressor and buffer size.

方法概要

限定符和类型	方法和说明
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.

从类继承的方法 java.io.FilterOutputStream

flush, write

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

def

protected Deflater def

Compressor for this stream.

buf

protected byte[] buf

Output buffer for writing compressed data.

构造器详细资料

DeflaterOutputStream

public DeflaterOutputStream(OutputStream out,
                            Deflater def,
                            int size)

Creates a new output stream with the specified compressor and buffer size.

参数:

out - the output stream

def - the compressor ("deflater")

size - the output buffer size

抛出:

IllegalArgumentException - if size is <= 0

DeflaterOutputStream

public DeflaterOutputStream(OutputStream out,
                            Deflater def)

Creates a new output stream with the specified compressor and a default buffer size.

参数:

out - the output stream

def - the compressor ("deflater")

DeflaterOutputStream

public DeflaterOutputStream(OutputStream out)

Creates a new output stream with a default compressor and buffer size.

参数:

out - the output stream

方法详细资料

write

public void write(int b)
           throws IOException

Writes a byte to the compressed output stream. This method will block until the byte can be written.

覆盖:

write 在类中 FilterOutputStream

参数:

b - the byte to be written

抛出:

IOException - if an I/O error has occurred

write

public void write(byte[] b,
                  int off,
                  int len)
           throws IOException

Writes an array of bytes to the compressed output stream. This method will block until all the bytes are written.

覆盖:

write 在类中 FilterOutputStream

参数:

b - the data to be written

off - the start offset of the data

len - the length of the data

抛出:

IOException - if an I/O error has occurred

finish

public void finish()
            throws IOException

Finishes writing compressed data to the output stream without closing the underlying stream. Use this method when applying multiple filters in succession to the same output stream.

抛出:

IOException - if an I/O error has occurred

close

public void close()
           throws IOException

Writes remaining compressed data to the output stream and closes the underlying stream.

指定者:

close 在接口中 Closeable

指定者:

close 在接口中 AutoCloseable

覆盖:

close 在类中 FilterOutputStream

抛出:

IOException - if an I/O error has occurred

deflate

protected void deflate()
                throws IOException

Writes next block of compressed data to the output stream.

抛出:

IOException - if an I/O error has occurred