io.druid.query.dimension

Interface ColumnSelectorStrategy

All Known Subinterfaces:

CardinalityAggregatorColumnSelectorStrategy<ValueSelectorType>, GroupByColumnSelectorStrategy, SearchQueryRunner.SearchColumnSelectorStrategy<ValueSelectorType>, SelectQueryEngine.SelectColumnSelectorStrategy<ValueSelectorType>, TopNColumnSelectorStrategy<ValueSelectorType,DimExtractionAggregateStoreType>, ValueMatcherColumnSelectorStrategy<ValueSelectorType>

All Known Implementing Classes:

DictionaryBuildingStringGroupByColumnSelectorStrategy, DoubleCardinalityAggregatorColumnSelectorStrategy, DoubleGroupByColumnSelectorStrategy, DoubleValueMatcherColumnSelectorStrategy, FloatCardinalityAggregatorColumnSelectorStrategy, FloatGroupByColumnSelectorStrategy, FloatValueMatcherColumnSelectorStrategy, LongCardinalityAggregatorColumnSelectorStrategy, LongGroupByColumnSelectorStrategy, LongValueMatcherColumnSelectorStrategy, NumericTopNColumnSelectorStrategy, SearchQueryRunner.DoubleSearchColumnSelectorStrategy, SearchQueryRunner.FloatSearchColumnSelectorStrategy, SearchQueryRunner.LongSearchColumnSelectorStrategy, SearchQueryRunner.StringSearchColumnSelectorStrategy, SelectQueryEngine.DoubleSelectColumnSelectorStrategy, SelectQueryEngine.FloatSelectColumnSelectorStrategy, SelectQueryEngine.LongSelectColumnSelectorStrategy, SelectQueryEngine.StringSelectColumnSelectorStrategy, StringCardinalityAggregatorColumnSelectorStrategy, StringGroupByColumnSelectorStrategy, StringTopNColumnSelectorStrategy, StringValueMatcherColumnSelectorStrategy

public interface ColumnSelectorStrategy

Base type for strategy objects that handle value type operations pertaining to a specific query type