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

Interface RollupAggregation

All Superinterfaces:

Aggregation

All Known Implementing Classes:

NullColumns, RollupAggregationBase

public interface RollupAggregation
extends Aggregation

Rollup-specific aggregations.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	RollupAggregation.Visitor

Method Summary

Modifier and Type	Method	Description
static RollupAggregation	nullColumns(ColumnDefinition<?> type)
static RollupAggregation	nullColumns(Iterable<ColumnDefinition<?>> resultColumns)
<V extends Aggregation.Visitor> V	walk(V visitor)	Glue method to deliver this Aggregation to a AggSpec.Visitor.

Method Details

nullColumns

static RollupAggregation nullColumns(ColumnDefinition<?> type)

nullColumns

static RollupAggregation nullColumns(Iterable<ColumnDefinition<?>> resultColumns)

walk

<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

walk

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