Package org.apache.druid.query.dimension

Interface ColumnSelectorStrategy

All Known Subinterfaces:

CardinalityAggregatorColumnSelectorStrategy<ValueSelectorType>, GroupByColumnSelectorStrategy, SearchQueryRunner.SearchColumnSelectorStrategy<ValueSelectorType>, TopNColumnAggregatesProcessor<ValueSelectorType>

All Known Implementing Classes:

DictionaryBuildingGroupByColumnSelectorStrategy, DoubleCardinalityAggregatorColumnSelectorStrategy, DoubleTopNColumnAggregatesProcessor, FixedWidthGroupByColumnSelectorStrategy, FloatCardinalityAggregatorColumnSelectorStrategy, FloatTopNColumnAggregatesProcessor, KeyMappingMultiValueGroupByColumnSelectorStrategy, KeyMappingMultiValueGroupByColumnSelectorStrategy.DictionaryBuilding, KeyMappingMultiValueGroupByColumnSelectorStrategy.PrebuiltDictionary, LongCardinalityAggregatorColumnSelectorStrategy, LongTopNColumnAggregatesProcessor, NullableNumericTopNColumnAggregatesProcessor, SearchQueryRunner.DoubleSearchColumnSelectorStrategy, SearchQueryRunner.FloatSearchColumnSelectorStrategy, SearchQueryRunner.LongSearchColumnSelectorStrategy, SearchQueryRunner.StringSearchColumnSelectorStrategy, StringCardinalityAggregatorColumnSelectorStrategy, StringTopNColumnAggregatesProcessor

public interface ColumnSelectorStrategy

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