public abstract class Sum0WithRetractAggFunction<T> extends SumWithRetractAggFunction<T>
Constructor and Description |
---|
Sum0WithRetractAggFunction(scala.math.Numeric<T> evidence$1) |
Modifier and Type | Method and Description |
---|---|
T |
getValue(SumWithRetractAccumulator<T> acc)
Called every time when an aggregation result should be materialized.
|
accumulate, createAccumulator, getAccumulatorType, getValueTypeInfo, merge, resetAccumulator, retract
requiresOver
close, functionIdentifier, open
public Sum0WithRetractAggFunction(scala.math.Numeric<T> evidence$1)
public T getValue(SumWithRetractAccumulator<T> acc)
AggregateFunction
getValue
in class SumWithRetractAggFunction<T>
acc
- the accumulator which contains the current
aggregated resultsCopyright © 2014–2018 The Apache Software Foundation. All rights reserved.