Interface FlatMapFunction<T,​R>

  • Type Parameters:
    T - the type of the input to the function
    R - the result type. An iterable of this type is returned from this function
    All Superinterfaces:
    Function<T,​Iterable<R>>, Operation, Serializable
    All Known Subinterfaces:
    PairFlatMapFunction<T,​K,​V>
    All Known Implementing Classes:
    EvaluationCalc

    public interface FlatMapFunction<T,​R>
    extends Function<T,​Iterable<R>>
    A function that accepts one argument and returns an Iterable of elements as its result.
    • Method Summary

      • Methods inherited from interface org.apache.storm.streams.operations.Function

        apply