Uses of Interface
org.apache.druid.query.topn.TopNAlgorithm

Packages that use TopNAlgorithm

Package	Description
org.apache.druid.query.topn

Uses of TopNAlgorithm in org.apache.druid.query.topn

Classes in org.apache.druid.query.topn that implement TopNAlgorithm

Modifier and Type	Class and Description
class	AggregateTopNMetricFirstAlgorithm This TopNAlgorithm is tailored to processing aggregates on high cardility columns which are likely to have larger result sets.
class	BaseTopNAlgorithm<DimValSelector,DimValAggregateStore,Parameters extends TopNParams>
class	HeapBasedTopNAlgorithm Heap based topn algorithm that handles aggregates on dimension extractions and numeric typed dimension columns.
class	PooledTopNAlgorithm This TopNAlgorithm is highly specialized for processing aggregates on string columns that are ColumnCapabilities.isDictionaryEncoded() and ColumnCapabilities.areDictionaryValuesUnique().
class	TimeExtractionTopNAlgorithm

Methods in org.apache.druid.query.topn with parameters of type TopNAlgorithm

Modifier and Type	Method and Description
void	TopNQueryMetrics.algorithm(TopNAlgorithm algorithm)
void	DefaultTopNQueryMetrics.algorithm(TopNAlgorithm algorithm)

Constructors in org.apache.druid.query.topn with parameters of type TopNAlgorithm

Constructor and Description
TopNMapFn(TopNQuery query, TopNAlgorithm topNAlgorithm)