Package io.deephaven.engine.table.impl.by.rollup

Class NullColumns

java.lang.Object

io.deephaven.engine.table.impl.by.rollup.RollupAggregationBase

io.deephaven.engine.table.impl.by.rollup.NullColumns

All Implemented Interfaces:

Aggregation, RollupAggregation

@Immutable
public abstract class NullColumns
extends RollupAggregationBase

RollupAggregation that allows columns to be nulled-out at higher aggregation levels.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	NullColumns.Builder

Nested classes/interfaces inherited from interface io.deephaven.engine.table.impl.by.rollup.RollupAggregation

RollupAggregation.Visitor

Constructor Summary

Constructors

Constructor	Description
NullColumns()

Method Summary

Modifier and Type	Method	Description
static NullColumns.Builder	builder()
static NullColumns	from(Iterable<? extends ColumnDefinition<?>> resultColumns)
static NullColumns	of(ColumnDefinition<?> resultColumn)
abstract List<ColumnDefinition<?>>	resultColumns()
final <V extends RollupAggregation.Visitor> V	walk(V visitor)

Methods inherited from class io.deephaven.engine.table.impl.by.rollup.RollupAggregationBase

walk

Methods inherited from class java.lang.Object

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

Constructor Details

NullColumns

public NullColumns()

Method Details

of

public static NullColumns of(ColumnDefinition<?> resultColumn)

from

public static NullColumns from(Iterable<? extends ColumnDefinition<?>> resultColumns)

builder

public static NullColumns.Builder builder()

resultColumns

public abstract List<ColumnDefinition<?>> resultColumns()

walk

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