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Package org.apache.hadoop.io

Added Classes
BinaryComparable Interface supported by org.apache.hadoop.io.WritableComparable types supporting ordering/permutation by a representative set of bytes.
 

Changed Classes
ArrayFile.Writer Write a new array file.
ArrayWritable A Writable for arrays containing instances of a class.
BytesWritable A byte sequence that is usable as a key or value.
DataOutputBuffer A reusable DataOutput implementation that writes to an in-memory buffer.
MD5Hash A Writable for MD5 hash values.
MapFile A file-based map from keys to values.
MapFile.Reader Provide access to an existing map.
MapFile.Writer Writes a new map.
SequenceFile.CompressionType The compression type used to compress key/value pairs in the SequenceFile.
SequenceFile.Reader Reads key/value pairs from a sequence-format file.
SequenceFile.Sorter Sorts key/value pairs in a sequence-format file.
SetFile.Writer Write a new set file.
Text This class stores text using standard UTF8 encoding.
WritableComparator A Comparator for WritableComparables.
WritableFactories Factories for non-public writables.
WritableName Utility to permit renaming of Writable implementation classes without invalidiating files that contain their class name.
WritableUtils