Uses of Interface
org.apache.hadoop.io.compress.CompressionCodec

Packages that use CompressionCodec

Package	Description
org.apache.hadoop.io	Generic i/o code for use when reading and writing data to the network, to databases, and to files.
org.apache.hadoop.io.compress

Uses of CompressionCodec in org.apache.hadoop.io

Methods in org.apache.hadoop.io that return CompressionCodec

Modifier and Type	Method	Description
CompressionCodec	SequenceFile.Reader.getCompressionCodec()	Returns the compression codec of data in this file.
CompressionCodec	SequenceFile.Writer.getCompressionCodec()

Methods in org.apache.hadoop.io with parameters of type CompressionCodec

Modifier and Type	Method	Description
static SequenceFile.Writer.Option	MapFile.Writer.compression(SequenceFile.CompressionType type, CompressionCodec codec)
static SequenceFile.Writer.Option	SequenceFile.Writer.compression(SequenceFile.CompressionType value, CompressionCodec codec)
static SequenceFile.Writer	SequenceFile.createWriter(Configuration conf, FSDataOutputStream out, Class keyClass, Class valClass, SequenceFile.CompressionType compressionType, CompressionCodec codec)	Deprecated. Use SequenceFile.createWriter(Configuration, Writer.Option...) instead.
static SequenceFile.Writer	SequenceFile.createWriter(Configuration conf, FSDataOutputStream out, Class keyClass, Class valClass, SequenceFile.CompressionType compressionType, CompressionCodec codec, SequenceFile.Metadata metadata)	Deprecated. Use SequenceFile.createWriter(Configuration, Writer.Option...) instead.
static SequenceFile.Writer	SequenceFile.createWriter(FileContext fc, Configuration conf, Path name, Class keyClass, Class valClass, SequenceFile.CompressionType compressionType, CompressionCodec codec, SequenceFile.Metadata metadata, EnumSet<CreateFlag> createFlag, Options.CreateOpts... opts)	Construct the preferred type of SequenceFile Writer.
static SequenceFile.Writer	SequenceFile.createWriter(FileSystem fs, Configuration conf, Path name, Class keyClass, Class valClass, int bufferSize, short replication, long blockSize, boolean createParent, SequenceFile.CompressionType compressionType, CompressionCodec codec, SequenceFile.Metadata metadata)	Deprecated.
static SequenceFile.Writer	SequenceFile.createWriter(FileSystem fs, Configuration conf, Path name, Class keyClass, Class valClass, int bufferSize, short replication, long blockSize, SequenceFile.CompressionType compressionType, CompressionCodec codec, Progressable progress, SequenceFile.Metadata metadata)	Deprecated. Use SequenceFile.createWriter(Configuration, Writer.Option...) instead.
static SequenceFile.Writer	SequenceFile.createWriter(FileSystem fs, Configuration conf, Path name, Class keyClass, Class valClass, SequenceFile.CompressionType compressionType, CompressionCodec codec)	Deprecated. Use SequenceFile.createWriter(Configuration, Writer.Option...) instead.
static SequenceFile.Writer	SequenceFile.createWriter(FileSystem fs, Configuration conf, Path name, Class keyClass, Class valClass, SequenceFile.CompressionType compressionType, CompressionCodec codec, Progressable progress)	Deprecated. Use SequenceFile.createWriter(Configuration, Writer.Option...) instead.
static SequenceFile.Writer	SequenceFile.createWriter(FileSystem fs, Configuration conf, Path name, Class keyClass, Class valClass, SequenceFile.CompressionType compressionType, CompressionCodec codec, Progressable progress, SequenceFile.Metadata metadata)	Deprecated. Use SequenceFile.createWriter(Configuration, Writer.Option...) instead.

Constructors in org.apache.hadoop.io with parameters of type CompressionCodec

Modifier	Constructor	Description
	Writer(Configuration conf, FileSystem fs, String dirName, Class<? extends WritableComparable> keyClass, Class<? extends Writable> valClass, SequenceFile.CompressionType compress, CompressionCodec codec, Progressable progress)	Deprecated.
	Writer(Configuration conf, FileSystem fs, String dirName, WritableComparator comparator, Class valClass, SequenceFile.CompressionType compress, CompressionCodec codec, Progressable progress)	Deprecated.
	Writer(Configuration conf, FileSystem fs, String dirName, Class<? extends WritableComparable> keyClass, Class valClass, SequenceFile.CompressionType compress, CompressionCodec codec, Progressable progress)	Deprecated. Use Writer(Configuration, Path, Option...) instead.
	Writer(Configuration conf, FileSystem fs, String dirName, WritableComparator comparator, Class valClass, SequenceFile.CompressionType compress, CompressionCodec codec, Progressable progress)	Deprecated. Use Writer(Configuration, Path, Option...) instead.

Uses of CompressionCodec in org.apache.hadoop.io.compress

Subinterfaces of CompressionCodec in org.apache.hadoop.io.compress

Modifier and Type	Interface	Description
interface	DirectDecompressionCodec	This class encapsulates a codec which can decompress direct bytebuffers.
interface	SplittableCompressionCodec	This interface is meant to be implemented by those compression codecs which are capable to compress / de-compress a stream starting at any arbitrary position.

Classes in org.apache.hadoop.io.compress that implement CompressionCodec

Modifier and Type	Class	Description
class	BZip2Codec	This class provides output and input streams for bzip2 compression and decompression.
class	DefaultCodec
class	DeflateCodec	Alias class for DefaultCodec to enable codec discovery by 'deflate' name.
class	GzipCodec	This class creates gzip compressors/decompressors.
class	Lz4Codec	This class creates lz4 compressors/decompressors.
class	PassthroughCodec	This is a special codec which does not transform the output.
class	SnappyCodec	This class creates snappy compressors/decompressors.
class	ZStandardCodec	This class creates zstd compressors/decompressors.

Methods in org.apache.hadoop.io.compress that return CompressionCodec

Modifier and Type	Method	Description
CompressionCodec	CompressionCodecFactory.getCodec(Path file)	Find the relevant compression codec for the given file based on its filename suffix.
CompressionCodec	CompressionCodecFactory.getCodecByClassName(String classname)	Find the relevant compression codec for the codec's canonical class name.
CompressionCodec	CompressionCodecFactory.getCodecByName(String codecName)	Find the relevant compression codec for the codec's canonical class name or by codec alias.

Methods in org.apache.hadoop.io.compress that return types with arguments of type CompressionCodec

Modifier and Type	Method	Description
Class<? extends CompressionCodec>	CompressionCodecFactory.getCodecClassByName(String codecName)	Find the relevant compression codec for the codec's canonical class name or by codec alias and returns its implemetation class.
static List<Class<? extends CompressionCodec>>	CompressionCodecFactory.getCodecClasses(Configuration conf)	Get the list of codecs discovered via a Java ServiceLoader, or listed in the configuration.

Methods in org.apache.hadoop.io.compress with parameters of type CompressionCodec

Modifier and Type	Method	Description
static Compressor	CodecPool.getCompressor(CompressionCodec codec)
static Compressor	CodecPool.getCompressor(CompressionCodec codec, Configuration conf)	Get a Compressor for the given CompressionCodec from the pool or a new one.
static Decompressor	CodecPool.getDecompressor(CompressionCodec codec)	Get a Decompressor for the given CompressionCodec from the pool or a new one.
static int	CodecPool.getLeasedCompressorsCount(CompressionCodec codec)	Return the number of leased Compressors for this CompressionCodec.
static int	CodecPool.getLeasedDecompressorsCount(CompressionCodec codec)	Return the number of leased Decompressors for this CompressionCodec.