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Packages that use Mapper | |
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org.apache.hadoop.examples | Hadoop example code. |
org.apache.hadoop.mapred.lib | Library of generally useful mappers, reducers, and partitioners. |
Uses of Mapper in org.apache.hadoop.examples |
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Classes in org.apache.hadoop.examples that implement Mapper | |
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static class |
WordCount.MapClass
Counts the words in each line. |
Uses of Mapper in org.apache.hadoop.mapred.lib |
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Classes in org.apache.hadoop.mapred.lib that implement Mapper | |
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class |
IdentityMapper
Implements the identity function, mapping inputs directly to outputs. |
class |
InverseMapper
A Mapper that swaps keys and values. |
class |
RegexMapper
A Mapper that extracts text matching a regular expression. |
class |
TokenCountMapper
A Mapper that maps text values into |
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