public final class NonMutatingAggregationProcedure<T,K,V> extends Object implements Procedure<T>
Constructor and Description |
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NonMutatingAggregationProcedure(MutableMap<K,V> map,
Function<? super T,? extends K> groupBy,
Function0<? extends V> zeroValueFactory,
Function2<? super V,? super T,? extends V> nonMutatingAggregator) |
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