| 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.mapreduce.lib.partition | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | BytesWritableA byte sequence that is usable as a key or value. | 
| class  | TextThis class stores text using standard UTF8 encoding. | 
| Modifier and Type | Method and Description | 
|---|---|
| int | BinaryComparable. compareTo(BinaryComparable other)Compare bytes from {#getBytes()}. | 
| Modifier and Type | Method and Description | 
|---|---|
| int | BinaryPartitioner. getPartition(BinaryComparable key,
            V value,
            int numPartitions)Use (the specified slice of the array returned by) 
  getBytes()to partition. | 
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