All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Accumulator`	`createAccumulator()`
`GroupedAccumulator`	`createGroupedAccumulator()`
`GroupedAccumulator`	`createGroupedIntermediateAccumulator()`
`Accumulator`	`createIntermediateAccumulator()`
`List<Integer>`	`getInputChannels()`
`boolean`	`hasDistinct()`
`boolean`	`hasOrderBy()`
`boolean`	`hasRemoveInput()`

Accumulator createIntermediateAccumulator()

GroupedAccumulator createGroupedAccumulator()

GroupedAccumulator createGroupedIntermediateAccumulator()

Interface AccumulatorFactory