| Package | Description |
|---|---|
| org.apache.druid.query.aggregation.cardinality.types | |
| org.apache.druid.query.topn.types | |
| org.apache.druid.segment |
| Modifier and Type | Class and Description |
|---|---|
class |
CardinalityAggregatorColumnSelectorStrategyFactory |
| Modifier and Type | Class and Description |
|---|---|
class |
TopNColumnAggregatesProcessorFactory |
| Modifier and Type | Method and Description |
|---|---|
static <Strategy extends ColumnSelectorStrategy> |
DimensionHandlerUtils.createColumnSelectorPlus(ColumnSelectorStrategyFactory<Strategy> strategyFactory,
DimensionSpec dimensionSpec,
ColumnSelectorFactory cursor)
Convenience function equivalent to calling
DimensionHandlerUtils.createColumnSelectorPluses(ColumnSelectorStrategyFactory, List, ColumnSelectorFactory) with a singleton
list of dimensionSpecs and then retrieving the only element in the returned array. |
static <Strategy extends ColumnSelectorStrategy> |
DimensionHandlerUtils.createColumnSelectorPluses(ColumnSelectorStrategyFactory<Strategy> strategyFactory,
List<DimensionSpec> dimensionSpecs,
ColumnSelectorFactory columnSelectorFactory)
Creates an array of ColumnSelectorPlus objects, selectors that handle type-specific operations within
query processing engines, using a strategy factory provided by the query engine.
|
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