io.druid.query.select

Interface SelectQueryEngine.SelectColumnSelectorStrategy<ValueSelectorType extends ColumnValueSelector>

All Superinterfaces:

ColumnSelectorStrategy

All Known Implementing Classes:

SelectQueryEngine.FloatSelectColumnSelectorStrategy, SelectQueryEngine.LongSelectColumnSelectorStrategy, SelectQueryEngine.StringSelectColumnSelectorStrategy

Enclosing class:

SelectQueryEngine

public static interface SelectQueryEngine.SelectColumnSelectorStrategy<ValueSelectorType extends ColumnValueSelector>
extends ColumnSelectorStrategy

Method Summary

Modifier and Type	Method and Description
void	addRowValuesToSelectResult(String outputName, ValueSelectorType dimSelector, Map<String,Object> resultMap) Read the current row from dimSelector and add the row values for a dimension to the result map.

Method Detail

addRowValuesToSelectResult

void addRowValuesToSelectResult(String outputName,
                                ValueSelectorType dimSelector,
                                Map<String,Object> resultMap)

Read the current row from dimSelector and add the row values for a dimension to the result map. Multi-valued rows should be added to the result as a List, single value rows should be added as a single object.

Parameters:

outputName - Output name for this dimension in the select query being served

dimSelector - Dimension value selector

resultMap - Row value map for the current row being retrieved by the select query