| 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 | |
| org.apache.hadoop.mapred | |
| org.apache.hadoop.mapreduce.lib.output | 
| Class and Description | 
|---|
| CompressionCodec This class encapsulates a streaming compression/decompression pair. | 
| Class and Description | 
|---|
| CompressionCodec This class encapsulates a streaming compression/decompression pair. | 
| CompressionInputStream A compression input stream. | 
| CompressionOutputStream A compression output stream. | 
| Compressor Specification of a stream-based 'compressor' which can be  
 plugged into a  CompressionOutputStreamto compress data. | 
| CompressorStream | 
| Decompressor Specification of a stream-based 'de-compressor' which can be  
 plugged into a  CompressionInputStreamto compress data. | 
| DecompressorStream | 
| DefaultCodec | 
| DirectDecompressionCodec This class encapsulates a codec which can decompress direct bytebuffers. | 
| DirectDecompressor Specification of a direct ByteBuffer 'de-compressor'. | 
| SplitCompressionInputStream An InputStream covering a range of compressed data. | 
| 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. | 
| Class and Description | 
|---|
| CompressionCodec This class encapsulates a streaming compression/decompression pair. | 
| Class and Description | 
|---|
| CompressionCodec This class encapsulates a streaming compression/decompression pair. | 
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