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Packages that use MapReduceBase | |
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org.apache.hadoop.mapred.lib |
Uses of MapReduceBase in org.apache.hadoop.mapred.lib |
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Subclasses of MapReduceBase in org.apache.hadoop.mapred.lib | |
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IdentityMapper<K,V>
Implements the identity function, mapping inputs directly to outputs. |
class |
IdentityReducer<K,V>
Performs no reduction, writing all input values directly to the output. |
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InverseMapper<K,V>
A Mapper that swaps keys and values. |
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LongSumReducer<K>
A Reducer that sums long values. |
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RegexMapper<K>
A Mapper that extracts text matching a regular expression. |
class |
TokenCountMapper<K>
A Mapper that maps text values into |
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