程序包 org.apache.hadoop.io.compress

接口概要

接口	说明
CompressionCodec	This class encapsulates a streaming compression/decompression pair.
Compressor	Specification of a stream-based 'compressor' which can be plugged into a CompressionOutputStream to compress data.
Decompressor	Specification of a stream-based 'de-compressor' which can be plugged into a CompressionInputStream to compress data.
SplittableCompressionCodec	This interface is meant to be implemented by those compression codecs which are capable to compress / decompress a stream starting at any arbitrary position.

类概要

类	说明
BlockCompressorStream	A CompressorStream which works with 'block-based' based compression algorithms, as opposed to 'stream-based' compression algorithms.
BlockDecompressorStream	A DecompressorStream which works with 'block-based' based compression algorithms, as opposed to 'stream-based' compression algorithms.
BZip2Codec	This class provides CompressionOutputStream and CompressionInputStream for compression and decompression.
CodecPool	A global compressor/decompressor pool used to save and reuse (possibly native) compression/decompression codecs.
CompressionCodecFactory	A factory that will find the correct codec for a given filename.
CompressionInputStream	A compression input stream.
CompressionOutputStream	A compression output stream.
CompressorStream
DecompressorStream
DefaultCodec
GzipCodec	This class creates gzip compressors/decompressors.
GzipCodec.GzipOutputStream	A bridge that wraps around a DeflaterOutputStream to make it a CompressionOutputStream.
SnappyCodec	This class creates snappy compressors/decompressors.
SplitCompressionInputStream	An InputStream covering a range of compressed data.

枚举概要

枚举	说明
SplittableCompressionCodec.READ_MODE	During decompression, data can be read off from the decompressor in two modes, namely continuous and blocked.

注释类型概要

注释类型	说明
DoNotPool	This is a marker annotation that marks a compressor or decompressor type as not to be pooled.