See: Description
Class | Description |
---|---|
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. |
AbstractPartitionPreservingIncrementalJob
and AbstractPartitionCollapsingIncrementalJob
.