Uses of Interface
org.apache.storm.streams.operations.Reducer
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Packages that use Reducer Package Description org.apache.storm.streams org.apache.storm.streams.processors -
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Uses of Reducer in org.apache.storm.streams
Methods in org.apache.storm.streams with parameters of type Reducer Modifier and Type Method Description Stream<T>
Stream. reduce(Reducer<T> reducer)
Performs a reduction on the elements of this stream, by repeatedly applying the reducer.PairStream<K,V>
PairStream. reduceByKey(Reducer<V> reducer)
Performs a reduction on the values for each key of this stream by repeatedly applying the reducer.PairStream<K,V>
PairStream. reduceByKeyAndWindow(Reducer<V> reducer, Window<?,?> window)
Returns a new stream where the values that arrive within a window having the same key will be reduced by repeatedly applying the reducer. -
Uses of Reducer in org.apache.storm.streams.processors
Constructors in org.apache.storm.streams.processors with parameters of type Reducer Constructor Description ReduceByKeyProcessor(Reducer<V> reducer)
ReduceProcessor(Reducer<T> reducer)
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