public interface Reducer<KOut,VOut> extends Serializable
Mapper
,
MapReduceTask
,
Cache.entrySet()
,
CacheCollection.stream()
Modifier and Type | Method and Description |
---|---|
VOut |
reduce(KOut reducedKey,
Iterator<VOut> iter)
Deprecated.
Combines/reduces all intermediate values for a particular intermediate key to a single value.
|
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