接口 org.apache.hadoop.io.compress.Decompressor
的使用

使用Decompressor的程序包

程序包	说明
org.apache.hadoop.io.compress
org.apache.hadoop.io.compress.bzip2
org.apache.hadoop.io.compress.snappy
org.apache.hadoop.io.compress.zlib

org.apache.hadoop.io.compress中Decompressor的使用

声明为Decompressor的org.apache.hadoop.io.compress中的字段

限定符和类型	字段和说明
protected Decompressor	DecompressorStream.decompressor

返回Decompressor的org.apache.hadoop.io.compress中的方法

限定符和类型	方法和说明
Decompressor	SnappyCodec.createDecompressor() Create a new Decompressor for use by this CompressionCodec.
Decompressor	GzipCodec.createDecompressor()
Decompressor	DefaultCodec.createDecompressor()
Decompressor	CompressionCodec.createDecompressor() Create a new Decompressor for use by this CompressionCodec.
Decompressor	BZip2Codec.createDecompressor() This functionality is currently not supported.
static Decompressor	CodecPool.getDecompressor(CompressionCodec codec) Get a Decompressor for the given CompressionCodec from the pool or a new one.

返回变量类型为Decompressor的类型的org.apache.hadoop.io.compress中的方法

限定符和类型	方法和说明
Class<? extends Decompressor>	SnappyCodec.getDecompressorType() Get the type of Decompressor needed by this CompressionCodec.
Class<? extends Decompressor>	GzipCodec.getDecompressorType()
Class<? extends Decompressor>	DefaultCodec.getDecompressorType()
Class<? extends Decompressor>	CompressionCodec.getDecompressorType() Get the type of Decompressor needed by this CompressionCodec.
Class<? extends Decompressor>	BZip2Codec.getDecompressorType() This functionality is currently not supported.

参数类型为Decompressor的org.apache.hadoop.io.compress中的方法

限定符和类型	方法和说明
CompressionInputStream	SnappyCodec.createInputStream(InputStream in, Decompressor decompressor) Create a CompressionInputStream that will read from the given InputStream with the given Decompressor.
CompressionInputStream	GzipCodec.createInputStream(InputStream in, Decompressor decompressor)
CompressionInputStream	DefaultCodec.createInputStream(InputStream in, Decompressor decompressor)
CompressionInputStream	CompressionCodec.createInputStream(InputStream in, Decompressor decompressor) Create a CompressionInputStream that will read from the given InputStream with the given Decompressor.
CompressionInputStream	BZip2Codec.createInputStream(InputStream in, Decompressor decompressor) This functionality is currently not supported.
SplitCompressionInputStream	SplittableCompressionCodec.createInputStream(InputStream seekableIn, Decompressor decompressor, long start, long end, SplittableCompressionCodec.READ_MODE readMode) Create a stream as dictated by the readMode.
SplitCompressionInputStream	BZip2Codec.createInputStream(InputStream seekableIn, Decompressor decompressor, long start, long end, SplittableCompressionCodec.READ_MODE readMode) Creates CompressionInputStream to be used to read off uncompressed data in one of the two reading modes. i.e.
static void	CodecPool.returnDecompressor(Decompressor decompressor) Return the Decompressor to the pool.

参数类型为Decompressor的org.apache.hadoop.io.compress中的构造器

构造器和说明
BlockDecompressorStream(InputStream in, Decompressor decompressor) Create a BlockDecompressorStream.
BlockDecompressorStream(InputStream in, Decompressor decompressor, int bufferSize) Create a BlockDecompressorStream.
DecompressorStream(InputStream in, Decompressor decompressor)
DecompressorStream(InputStream in, Decompressor decompressor, int bufferSize)

org.apache.hadoop.io.compress.bzip2中Decompressor的使用

实现Decompressor的org.apache.hadoop.io.compress.bzip2中的类

限定符和类型	类和说明
class	BZip2DummyDecompressor This is a dummy decompressor for BZip2.

org.apache.hadoop.io.compress.snappy中Decompressor的使用

实现Decompressor的org.apache.hadoop.io.compress.snappy中的类

限定符和类型	类和说明
class	SnappyDecompressor A Decompressor based on the snappy compression algorithm.

org.apache.hadoop.io.compress.zlib中Decompressor的使用

实现Decompressor的org.apache.hadoop.io.compress.zlib中的类

限定符和类型	类和说明
class	BuiltInGzipDecompressor A Decompressor based on the popular gzip compressed file format.
class	BuiltInZlibInflater A wrapper around java.util.zip.Inflater to make it conform to org.apache.hadoop.io.compress.Decompressor interface.
class	ZlibDecompressor A Decompressor based on the popular zlib compression algorithm.

返回Decompressor的org.apache.hadoop.io.compress.zlib中的方法

限定符和类型	方法和说明
static Decompressor	ZlibFactory.getZlibDecompressor(Configuration conf) Return the appropriate implementation of the zlib decompressor.

返回变量类型为Decompressor的类型的org.apache.hadoop.io.compress.zlib中的方法

限定符和类型	方法和说明
static Class<? extends Decompressor>	ZlibFactory.getZlibDecompressorType(Configuration conf) Return the appropriate type of the zlib decompressor.