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| Class Summary | |
|---|---|
| InverseMapper<K,V> | A Mapper that swaps keys and values. |
| MultithreadedMapper<K1,V1,K2,V2> | Multithreaded implementation for @link org.apache.hadoop.mapreduce.Mapper. |
| RegexMapper<K> | A Mapper that extracts text matching a regular expression. |
| TokenCounterMapper | Tokenize the input values and emit each word with a count of 1. |
| WrappedMapper<KEYIN,VALUEIN,KEYOUT,VALUEOUT> | A Mapper which wraps a given one to allow custom
WrappedMapper.Context implementations. |
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