Uses of Interface
org.apache.druid.query.aggregation.BufferAggregator

Packages that use BufferAggregator

Package	Description
org.apache.druid.query.aggregation
org.apache.druid.query.aggregation.any
org.apache.druid.query.aggregation.cardinality
org.apache.druid.query.aggregation.constant
org.apache.druid.query.aggregation.firstlast.first
org.apache.druid.query.aggregation.firstlast.last
org.apache.druid.query.aggregation.hyperloglog
org.apache.druid.query.aggregation.mean
org.apache.druid.query.topn

Uses of BufferAggregator in org.apache.druid.query.aggregation

Classes in org.apache.druid.query.aggregation that implement BufferAggregator

Modifier and Type	Class	Description
class	CountBufferAggregator
class	DelegatingBufferAggregator	A BufferAggregator that delegates everything.
class	DoubleMaxBufferAggregator
class	DoubleMinBufferAggregator
class	DoubleSumBufferAggregator
class	ExpressionLambdaBufferAggregator
class	FilteredBufferAggregator
class	FloatMaxBufferAggregator
class	FloatMinBufferAggregator
class	FloatSumBufferAggregator
class	HistogramBufferAggregator
class	JavaScriptBufferAggregator
class	LongMaxBufferAggregator
class	LongMinBufferAggregator
class	LongSumBufferAggregator
class	NoopBufferAggregator
class	NullableNumericBufferAggregator	Null-aware numeric BufferAggregator.
class	SimpleDoubleBufferAggregator
class	SimpleFloatBufferAggregator
class	SimpleLongBufferAggregator
class	SingleValueBufferAggregator
class	StringColumnDoubleBufferAggregatorWrapper	This class can be used to wrap Double BufferAggregator that consume double type columns to handle String type.
class	StringColumnFloatBufferAggregatorWrapper	This class can be used to wrap Float BufferAggregator that consume float type columns to handle String type.
class	StringColumnLongBufferAggregatorWrapper	This class can be used to wrap Long BufferAggregator that consume long type columns to handle String type.
static class	SuppressedAggregatorFactory.SuppressedBufferAggregator

Fields in org.apache.druid.query.aggregation declared as BufferAggregator

Modifier and Type	Field	Description
protected BufferAggregator	DelegatingBufferAggregator.delegate

Methods in org.apache.druid.query.aggregation that return BufferAggregator

Modifier and Type	Method	Description
protected BufferAggregator	DoubleMaxAggregatorFactory.buildBufferAggregator(BaseDoubleColumnValueSelector selector)
protected BufferAggregator	DoubleMinAggregatorFactory.buildBufferAggregator(BaseDoubleColumnValueSelector selector)
protected BufferAggregator	DoubleSumAggregatorFactory.buildBufferAggregator(BaseDoubleColumnValueSelector selector)
protected BufferAggregator	FloatMaxAggregatorFactory.buildBufferAggregator(BaseFloatColumnValueSelector selector)
protected BufferAggregator	FloatMinAggregatorFactory.buildBufferAggregator(BaseFloatColumnValueSelector selector)
protected BufferAggregator	FloatSumAggregatorFactory.buildBufferAggregator(BaseFloatColumnValueSelector selector)
protected BufferAggregator	LongMaxAggregatorFactory.buildBufferAggregator(BaseLongColumnValueSelector selector)
protected BufferAggregator	LongMinAggregatorFactory.buildBufferAggregator(BaseLongColumnValueSelector selector)
protected BufferAggregator	LongSumAggregatorFactory.buildBufferAggregator(BaseLongColumnValueSelector selector)
protected abstract BufferAggregator	SimpleDoubleAggregatorFactory.buildBufferAggregator(BaseDoubleColumnValueSelector selector)
protected abstract BufferAggregator	SimpleFloatAggregatorFactory.buildBufferAggregator(BaseFloatColumnValueSelector selector)
protected abstract BufferAggregator	SimpleLongAggregatorFactory.buildBufferAggregator(BaseLongColumnValueSelector selector)
abstract BufferAggregator	AggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
BufferAggregator	CountAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
BufferAggregator	ExpressionLambdaAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
BufferAggregator	FilteredAggregatorFactory.factorizeBuffered(ColumnSelectorFactory columnSelectorFactory)
BufferAggregator	GroupingAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
BufferAggregator	HistogramAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
BufferAggregator	JavaScriptAggregatorFactory.factorizeBuffered(ColumnSelectorFactory columnSelectorFactory)
BufferAggregator	NullableNumericAggregatorFactory.factorizeBuffered(ColumnSelectorFactory columnSelectorFactory)
protected abstract BufferAggregator	NullableNumericAggregatorFactory.factorizeBuffered(ColumnSelectorFactory columnSelectorFactory, T selector)	Creates an BufferAggregator to aggregate values from several rows into a ByteBuffer.
protected BufferAggregator	SimpleDoubleAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory, ColumnValueSelector selector)
protected BufferAggregator	SimpleFloatAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory, ColumnValueSelector selector)
protected BufferAggregator	SimpleLongAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory, ColumnValueSelector selector)
BufferAggregator	SingleValueAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
BufferAggregator	SuppressedAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
BufferAggregator	SuppressedAggregatorFactory.SuppressedBufferAggregator.getDelegate()

Constructors in org.apache.druid.query.aggregation with parameters of type BufferAggregator

Constructor	Description
FilteredBufferAggregator(ValueMatcher matcher, BufferAggregator delegate)
NullableNumericBufferAggregator(BufferAggregator delegate, BaseNullableColumnValueSelector nullSelector)
SuppressedBufferAggregator(BufferAggregator delegate)

Constructor parameters in org.apache.druid.query.aggregation with type arguments of type BufferAggregator

Constructor	Description
StringColumnDoubleBufferAggregatorWrapper(BaseObjectColumnValueSelector selector, Function<BaseDoubleColumnValueSelector,BufferAggregator> delegateBuilder, double nullValue)
StringColumnFloatBufferAggregatorWrapper(BaseObjectColumnValueSelector selector, Function<BaseFloatColumnValueSelector,BufferAggregator> delegateBuilder, float nullValue)
StringColumnLongBufferAggregatorWrapper(BaseObjectColumnValueSelector selector, Function<BaseLongColumnValueSelector,BufferAggregator> delegateBuilder, long nullValue)

Uses of BufferAggregator in org.apache.druid.query.aggregation.any

Classes in org.apache.druid.query.aggregation.any that implement BufferAggregator

Modifier and Type	Class	Description
class	DoubleAnyBufferAggregator
class	FloatAnyBufferAggregator
class	LongAnyBufferAggregator
class	NumericAnyBufferAggregator<TSelector extends BaseNullableColumnValueSelector>	Base type for buffer based 'any' aggregator for primitive numeric column selectors
class	StringAnyBufferAggregator

Methods in org.apache.druid.query.aggregation.any that return BufferAggregator

Modifier and Type	Method	Description
BufferAggregator	DoubleAnyAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
BufferAggregator	FloatAnyAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
BufferAggregator	LongAnyAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
BufferAggregator	StringAnyAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)

Uses of BufferAggregator in org.apache.druid.query.aggregation.cardinality

Classes in org.apache.druid.query.aggregation.cardinality that implement BufferAggregator

Modifier and Type	Class	Description
class	CardinalityBufferAggregator

Methods in org.apache.druid.query.aggregation.cardinality that return BufferAggregator

Modifier and Type	Method	Description
BufferAggregator	CardinalityAggregatorFactory.factorizeBuffered(ColumnSelectorFactory columnFactory)

Uses of BufferAggregator in org.apache.druid.query.aggregation.constant

Classes in org.apache.druid.query.aggregation.constant that implement BufferAggregator

Modifier and Type	Class	Description
class	LongConstantBufferAggregator	BufferAggregator variant of LongConstantAggregator

Uses of BufferAggregator in org.apache.druid.query.aggregation.firstlast.first

Classes in org.apache.druid.query.aggregation.firstlast.first that implement BufferAggregator

Modifier and Type	Class	Description
class	DoubleFirstBufferAggregator
class	FloatFirstBufferAggregator
class	LongFirstBufferAggregator
class	NumericFirstBufferAggregator	Base type for buffer based 'first' aggregator for primitive numeric column selectors
class	StringFirstBufferAggregator

Methods in org.apache.druid.query.aggregation.firstlast.first that return BufferAggregator

Modifier and Type	Method	Description
BufferAggregator	DoubleFirstAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
BufferAggregator	FloatFirstAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
BufferAggregator	LongFirstAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
BufferAggregator	StringFirstAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)

Uses of BufferAggregator in org.apache.druid.query.aggregation.firstlast.last

Classes in org.apache.druid.query.aggregation.firstlast.last that implement BufferAggregator

Modifier and Type	Class	Description
class	DoubleLastBufferAggregator
class	FloatLastBufferAggregator
class	LongLastBufferAggregator
class	NumericLastBufferAggregator	Base type for buffer based 'last' aggregator for primitive numeric column selectors This could probably share a base type with NumericFirstBufferAggregator ...
class	StringLastBufferAggregator

Methods in org.apache.druid.query.aggregation.firstlast.last that return BufferAggregator

Modifier and Type	Method	Description
BufferAggregator	DoubleLastAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
BufferAggregator	FloatLastAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
BufferAggregator	LongLastAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
BufferAggregator	StringLastAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)

Uses of BufferAggregator in org.apache.druid.query.aggregation.hyperloglog

Classes in org.apache.druid.query.aggregation.hyperloglog that implement BufferAggregator

Modifier and Type	Class	Description
class	HyperUniquesBufferAggregator

Methods in org.apache.druid.query.aggregation.hyperloglog that return BufferAggregator

Modifier and Type	Method	Description
BufferAggregator	HyperUniquesAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)

Uses of BufferAggregator in org.apache.druid.query.aggregation.mean

Classes in org.apache.druid.query.aggregation.mean that implement BufferAggregator

Modifier and Type	Class	Description
class	DoubleMeanBufferAggregator

Methods in org.apache.druid.query.aggregation.mean that return BufferAggregator

Modifier and Type	Method	Description
BufferAggregator	DoubleMeanAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)

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

Classes in org.apache.druid.query.topn with type parameters of type BufferAggregator

Modifier and Type	Interface	Description
interface	Historical1AggPooledTopNScanner<DimensionSelectorType extends HistoricalDimensionSelector,MetricSelectorType,BufferAggregatorType extends BufferAggregator>

Methods in org.apache.druid.query.topn that return BufferAggregator

Modifier and Type	Method	Description
protected static BufferAggregator[]	BaseTopNAlgorithm.makeBufferAggregators(Cursor cursor, List<AggregatorFactory> aggregatorSpecs)
protected BufferAggregator[]	PooledTopNAlgorithm.makeDimValAggregateStore(PooledTopNAlgorithm.PooledTopNParams params)

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

Modifier and Type	Method	Description
protected void	PooledTopNAlgorithm.resetAggregators(BufferAggregator[] bufferAggregators)
long	Generic1AggPooledTopNScanner.scanAndAggregate(DimensionSelector dimensionSelector, BufferAggregator aggregator, int aggregatorSize, Cursor cursor, int[] positions, ByteBuffer resultsBuffer)
long	Generic1AggPooledTopNScannerPrototype.scanAndAggregate(DimensionSelector dimensionSelector, BufferAggregator aggregator, int aggregatorSize, Cursor cursor, int[] positions, ByteBuffer resultsBuffer)	Any changes to this method should be coordinated with TopNUtils, PooledTopNAlgorithm.computeSpecializedScanAndAggregateImplementations() and downstream methods.
long	Generic2AggPooledTopNScanner.scanAndAggregate(DimensionSelector dimensionSelector, BufferAggregator aggregator1, int aggregator1Size, BufferAggregator aggregator2, int aggregator2Size, Cursor cursor, int[] positions, ByteBuffer resultsBuffer)
long	Generic2AggPooledTopNScannerPrototype.scanAndAggregate(DimensionSelector dimensionSelector, BufferAggregator aggregator1, int aggregator1Size, BufferAggregator aggregator2, int aggregator2Size, Cursor cursor, int[] positions, ByteBuffer resultsBuffer)	Any changes to this method should be coordinated with TopNUtils, PooledTopNAlgorithm.computeSpecializedScanAndAggregateImplementations() and downstream methods.
protected long	PooledTopNAlgorithm.scanAndAggregate(PooledTopNAlgorithm.PooledTopNParams params, int[] positions, BufferAggregator[] theAggregators)
protected void	PooledTopNAlgorithm.updateResults(PooledTopNAlgorithm.PooledTopNParams params, int[] positions, BufferAggregator[] theAggregators, TopNResultBuilder resultBuilder)