Package io.deephaven.api.agg

Class ColumnAggregation

java.lang.Object

io.deephaven.api.agg.ColumnAggregation

All Implemented Interfaces:

Aggregation

@Immutable
public abstract class ColumnAggregation
extends Object
implements Aggregation

A ColumnAggregation is an Aggregation that is composed of a spec and a single input/output column pair. The spec defines the aggregation operation to apply to the input column in order to produce the paired output column.

Nested Class Summary

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

Aggregation.Visitor

Constructor Summary

Constructors

Constructor	Description
ColumnAggregation()

Method Summary

Modifier and Type	Method	Description
static ColumnAggregation	of(AggSpec spec, Pair pair)
abstract Pair	pair()
abstract AggSpec	spec()
final <V extends Aggregation.Visitor> V	walk(V visitor)	Glue method to deliver this Aggregation to a AggSpec.Visitor.

Methods inherited from class java.lang.Object

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

Constructor Details

ColumnAggregation

public ColumnAggregation()

Method Details

of

public static ColumnAggregation of(AggSpec spec,
 Pair pair)

spec

@Parameter
public abstract AggSpec spec()

pair

@Parameter
public abstract Pair pair()

walk

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

Description copied from interface: Aggregation

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

Specified by:

walk in interface Aggregation

Parameters:

visitor - The visitor

Returns:

The visitor