Package io.deephaven.api.agg

Interface Aggregation.Visitor

All Known Implementing Classes:

AggregationDescriptions, AggregationOptimizer, AggregationOutputs, AggregationPairs

Enclosing interface:

Aggregation

public static interface Aggregation.Visitor

Visitor interface. Combines with Aggregation.walk(Visitor) in order to allow for type-safe Aggregation evaluation without switch statements or if-else blocks.

Method Summary

Modifier and Type	Method	Description
void	visit(Aggregations aggregations)	Visit a compound aggregation.
void	visit(ColumnAggregation columnAgg)	Visit a column aggregation.
void	visit(ColumnAggregations columnAggs)	Visit a compound column aggregation.
void	visit(Count count)	Visit a count aggregation.
void	visit(FirstRowKey firstRowKey)	Visit a first row key aggregation.
void	visit(LastRowKey lastRowKey)	Visit a last row key aggregation.
void	visit(Partition partition)	Visit a partition aggregation.

Method Details

visit

void visit(Aggregations aggregations)

Visit a compound aggregation.

Parameters:

aggregations - The compound aggregation to visit

visit

void visit(ColumnAggregation columnAgg)

Visit a column aggregation.

Parameters:

columnAgg - The column aggregation to visit

visit

void visit(ColumnAggregations columnAggs)

Visit a compound column aggregation.

Parameters:

columnAggs - The compound column aggregation to visit

visit

void visit(Count count)

Visit a count aggregation.

Parameters:

count - The count aggregation

visit

void visit(FirstRowKey firstRowKey)

Visit a first row key aggregation.

Parameters:

firstRowKey - The first row key aggregation

visit

void visit(LastRowKey lastRowKey)

Visit a last row key aggregation.

Parameters:

lastRowKey - The last row key aggregation

visit

void visit(Partition partition)

Visit a partition aggregation.

Parameters:

partition - The partition aggregation