Package io.deephaven.api.agg.spec

Class AggSpecSum

java.lang.Object

io.deephaven.api.agg.spec.AggSpecBase

io.deephaven.api.agg.spec.AggSpecEmptyBase

io.deephaven.api.agg.spec.AggSpecSum

All Implemented Interfaces:

AggSpec

@Immutable
public abstract class AggSpecSum
extends AggSpecEmptyBase

Specifies an aggregation that outputs the sum of input values for each group. Only works with numeric input types and Boolean.

Boolean inputs are aggregated according to the following rules:

• If any input value is true, the output value is true
• If there are no non-null input values, the output value is null
• Else all input values must be false, and the output value is false

See Also:

• TableOperations.sumBy()

Nested Class Summary

Nested classes/interfaces inherited from interface io.deephaven.api.agg.spec.AggSpec

AggSpec.Visitor

Constructor Summary

Constructors

Constructor	Description
AggSpecSum()

Method Summary

Modifier and Type	Method	Description
final String	description()	Get a simple description for this AggSpec.
static AggSpecSum	of()
final <V extends AggSpec.Visitor> V	walk(V visitor)	Glue method to deliver this AggSpec to a AggSpec.Visitor.

Methods inherited from class io.deephaven.api.agg.spec.AggSpecBase

aggregation, aggregation, aggregation

Methods inherited from class java.lang.Object

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

Constructor Details

AggSpecSum

public AggSpecSum()

Method Details

of

public static AggSpecSum of()

description

public final String description()

Description copied from interface: AggSpec

Get a simple description for this AggSpec.

Returns:

The description

walk

public final <V extends AggSpec.Visitor> V walk(V visitor)

Description copied from interface: AggSpec

Glue method to deliver this AggSpec to a AggSpec.Visitor.

Parameters:

visitor - The visitor

Returns:

The visitor