Package com.illumon.iris.db.v2.by

Class NullColumnAggregationTransformer

java.lang.Object

com.illumon.iris.db.v2.by.NullColumnAggregationTransformer

All Implemented Interfaces:

AggregationContextTransformer

public class NullColumnAggregationTransformer
extends Object
implements AggregationContextTransformer

Field Summary

Fields inherited from interface com.illumon.iris.db.v2.by.AggregationContextTransformer

ZERO_LENGTH_AGGREGATION_CONTEXT_TRANSFORMER_ARRAY

Method Summary

Modifier and Type	Method	Description
void	resultColumnFixup(Map<String,ColumnSource<?>> resultColumns)	After we have created the key columns, and the default result columns, allow each transformer to add additional columns to the result set that are not handled by the regular modified column set transformer, etc.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.illumon.iris.db.v2.by.AggregationContextTransformer

setReverseLookupFunction, transformResult

Method Details

resultColumnFixup

public void resultColumnFixup(Map<String,ColumnSource<?>> resultColumns)

Description copied from interface: AggregationContextTransformer

After we have created the key columns, and the default result columns, allow each transformer to add additional columns to the result set that are not handled by the regular modified column set transformer, etc. logic.

Specified by:

resultColumnFixup in interface AggregationContextTransformer