Package org.apache.druid.query.dimension

Interface ColumnSelectorStrategy

All Known Subinterfaces:

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

All Known Implementing Classes:

ArrayDoubleGroupByColumnSelectorStrategy, ArrayLongGroupByColumnSelectorStrategy, ArrayNumericGroupByColumnSelectorStrategy, ArrayStringGroupByColumnSelectorStrategy, DictionaryBuildingStringGroupByColumnSelectorStrategy, DoubleCardinalityAggregatorColumnSelectorStrategy, DoubleGroupByColumnSelectorStrategy, DoubleTopNColumnAggregatesProcessor, FloatCardinalityAggregatorColumnSelectorStrategy, FloatGroupByColumnSelectorStrategy, FloatTopNColumnAggregatesProcessor, LongCardinalityAggregatorColumnSelectorStrategy, LongGroupByColumnSelectorStrategy, LongTopNColumnAggregatesProcessor, NullableNumericGroupByColumnSelectorStrategy, NullableNumericTopNColumnAggregatesProcessor, SearchQueryRunner.DoubleSearchColumnSelectorStrategy, SearchQueryRunner.FloatSearchColumnSelectorStrategy, SearchQueryRunner.LongSearchColumnSelectorStrategy, SearchQueryRunner.StringSearchColumnSelectorStrategy, StringCardinalityAggregatorColumnSelectorStrategy, StringGroupByColumnSelectorStrategy, StringTopNColumnAggregatesProcessor

public interface ColumnSelectorStrategy

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