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Packages that use MapReduceBase | |
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org.apache.hadoop.contrib.index.mapred | |
org.apache.hadoop.mapred.lib | Library of generally useful mappers, reducers, and partitioners. |
org.apache.hadoop.tools | Command-line tools for MapReduce. |
Uses of MapReduceBase in org.apache.hadoop.contrib.index.mapred |
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Subclasses of MapReduceBase in org.apache.hadoop.contrib.index.mapred | |
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class |
IndexUpdateCombiner
This combiner combines multiple intermediate forms into one intermediate form. |
class |
IndexUpdateMapper<K extends WritableComparable,V extends Writable>
This class applies local analysis on a key-value pair and then convert the result docid-operation pair to a shard-and-intermediate form pair. |
class |
IndexUpdateReducer
This reducer applies to a shard the changes for it. |
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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class |
IdentityMapper<K,V>
Deprecated. Use Mapper instead. |
class |
IdentityReducer<K,V>
Deprecated. Use Reducer instead. |
class |
InverseMapper<K,V>
Deprecated. Use InverseMapper
instead. |
class |
LongSumReducer<K>
Deprecated. Use LongSumReducer
instead. |
class |
RegexMapper<K>
Deprecated. Use RegexMapper |
class |
TokenCountMapper<K>
Deprecated. Use TokenCounterMapper instead. |
Uses of MapReduceBase in org.apache.hadoop.tools |
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Subclasses of MapReduceBase in org.apache.hadoop.tools | |
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static class |
Logalyzer.LogRegexMapper<K extends WritableComparable>
A Mapper that extracts text matching a regular expression. |
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