ai.rapids.cudf

Class AggregationOverWindow<T extends Aggregation & RollingAggregation<T>>

java.lang.Object

ai.rapids.cudf.Aggregation

ai.rapids.cudf.AggregationOnColumn<T>

ai.rapids.cudf.AggregationOverWindow<T>

public class AggregationOverWindow<T extends Aggregation & RollingAggregation<T>>
extends AggregationOnColumn<T>

An Aggregation instance that also holds a column number and window metadata so the aggregation can be done over a specific window.

Nested Class Summary

Nested classes/interfaces inherited from class ai.rapids.cudf.Aggregation

Aggregation.AllAggregation, Aggregation.AnyAggregation, Aggregation.ArgMaxAggregation, Aggregation.ArgMinAggregation, Aggregation.CollectListAggregation, Aggregation.CountAggregation, Aggregation.LagAggregation, Aggregation.LeadAggregation, Aggregation.MaxAggregation, Aggregation.MeanAggregation, Aggregation.MedianAggregation, Aggregation.MinAggregation, Aggregation.NthAggregation, Aggregation.NuniqueAggregation, Aggregation.ProductAggregation, Aggregation.RowNumberAggregation, Aggregation.StandardDeviationAggregation, Aggregation.SumAggregation, Aggregation.SumOfSquaresAggregation, Aggregation.VarianceAggregation

Field Summary

Fields

Modifier and Type	Field and Description
protected WindowOptions	windowOptions

Fields inherited from class ai.rapids.cudf.AggregationOnColumn

columnIndex, wrapped

Fields inherited from class ai.rapids.cudf.Aggregation

kind

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object other)
WindowOptions	getWindowOptions()
int	hashCode()
AggregationOnColumn<T>	onColumn(int columnIndex) Add a column to the Aggregation so it can be used on a specific column of data.
AggregationOverWindow<T>	overWindow(WindowOptions windowOptions) Do the aggregation over a given Window.

Methods inherited from class ai.rapids.cudf.AggregationOnColumn

getColumnIndex

Methods inherited from class ai.rapids.cudf.Aggregation

all, any, argMax, argMin, collectList, collectList, collectSet, collectSet, count, count, lag, lag, lead, lead, max, mean, median, min, nth, nth, nunique, nunique, product, quantile, quantile, rowNumber, standardDeviation, standardDeviation, sum, sumOfSquares, variance, variance

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Field Detail

windowOptions

protected final WindowOptions windowOptions

Method Detail

getWindowOptions

public WindowOptions getWindowOptions()

onColumn

public AggregationOnColumn<T> onColumn(int columnIndex)

Description copied from class: Aggregation

Add a column to the Aggregation so it can be used on a specific column of data.

Overrides:

onColumn in class AggregationOnColumn<T extends Aggregation & RollingAggregation<T>>

Parameters:

columnIndex - the index of the column to operate on.

overWindow

public AggregationOverWindow<T> overWindow(WindowOptions windowOptions)

Description copied from class: AggregationOnColumn

Do the aggregation over a given Window.

Overrides:

overWindow in class AggregationOnColumn<T extends Aggregation & RollingAggregation<T>>

hashCode

public int hashCode()

Overrides:

hashCode in class AggregationOnColumn<T extends Aggregation & RollingAggregation<T>>

equals

public boolean equals(Object other)

Overrides:

equals in class AggregationOnColumn<T extends Aggregation & RollingAggregation<T>>