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See:
Description
Class Summary | |
---|---|
AvroKeyValueIdentityMapper | A mapper which outputs key-value pairs as-is. |
CollapsingCombiner | The combiner used by AbstractPartitionCollapsingIncrementalJob and its derived classes. |
CollapsingMapper | The mapper used by AbstractPartitionCollapsingIncrementalJob and its derived classes. |
CollapsingReducer | The reducer used by AbstractPartitionCollapsingIncrementalJob and its derived classes. |
DelegatingCombiner | A Hadoop combiner which delegates to an implementation read from the distributed cache. |
DelegatingMapper | A Hadoop mapper which delegates to an implementation read from the distributed cache. |
DelegatingReducer | A Hadoop reducer which delegates to an implementation read from the distributed cache. |
DistributedCacheHelper | Methods for working with the Hadoop distributed cache. |
ObjectMapper | Defines the interface for a mapper implementation that DelegatingMapper delegates to. |
ObjectProcessor | Base class for ObjectMapper and ObjectReducer . |
ObjectReducer | Defines the interface for combiner and reducer implementations that DelegatingCombiner and
DelegatingReducer delegate to. |
Parameters | Parameters used by the jobs to pass configuration settings to the mappers, combiners, and reducers. |
PartitioningCombiner | The combiner used by AbstractPartitionPreservingIncrementalJob and its derived classes. |
PartitioningMapper | The mapper used by AbstractPartitionPreservingIncrementalJob and its derived classes. |
PartitioningReducer | The reducer used by AbstractPartitionPreservingIncrementalJob and its derived classes. |
Implementations of mappers, combiners, and reducers used by incremental jobs.
These are used internally by AbstractPartitionPreservingIncrementalJob
and AbstractPartitionCollapsingIncrementalJob
.
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