Uses of Interface
io.druid.query.aggregation.BufferAggregator

Packages that use BufferAggregator

Package	Description
io.druid.query.aggregation
io.druid.query.aggregation.cardinality
io.druid.query.aggregation.histogram
io.druid.query.aggregation.hyperloglog
io.druid.query.topn
io.druid.segment.incremental

Uses of BufferAggregator in io.druid.query.aggregation

Classes in io.druid.query.aggregation that implement BufferAggregator

Modifier and Type	Class and Description
class	CountBufferAggregator
class	DoubleSumBufferAggregator
class	FilteredBufferAggregator
class	HistogramBufferAggregator
class	JavaScriptBufferAggregator
class	LongSumBufferAggregator
class	MaxBufferAggregator
class	MinBufferAggregator

Methods in io.druid.query.aggregation that return BufferAggregator

Modifier and Type	Method and Description
BufferAggregator	MinAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
BufferAggregator	MaxAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
BufferAggregator	LongSumAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
BufferAggregator	JavaScriptAggregatorFactory.factorizeBuffered(ColumnSelectorFactory columnSelectorFactory)
BufferAggregator	HistogramAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
BufferAggregator	FilteredAggregatorFactory.factorizeBuffered(ColumnSelectorFactory columnSelectorFactory)
BufferAggregator	DoubleSumAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
BufferAggregator	CountAggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
BufferAggregator	AggregatorFactory.factorizeBuffered(ColumnSelectorFactory metricFactory)
static BufferAggregator	Aggregators.noopBufferAggregator()

Constructors in io.druid.query.aggregation with parameters of type BufferAggregator

Constructor and Description
FilteredBufferAggregator(ValueMatcher matcher, BufferAggregator delegate)

Uses of BufferAggregator in io.druid.query.aggregation.cardinality

Classes in io.druid.query.aggregation.cardinality that implement BufferAggregator

Modifier and Type	Class and Description
class	CardinalityBufferAggregator

Methods in io.druid.query.aggregation.cardinality that return BufferAggregator

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

Uses of BufferAggregator in io.druid.query.aggregation.histogram

Classes in io.druid.query.aggregation.histogram that implement BufferAggregator

Modifier and Type	Class and Description
class	ApproximateHistogramBufferAggregator
class	ApproximateHistogramFoldingBufferAggregator

Methods in io.druid.query.aggregation.histogram that return BufferAggregator

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

Uses of BufferAggregator in io.druid.query.aggregation.hyperloglog

Classes in io.druid.query.aggregation.hyperloglog that implement BufferAggregator

Modifier and Type	Class and Description
class	HyperUniquesBufferAggregator

Methods in io.druid.query.aggregation.hyperloglog that return BufferAggregator

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

Uses of BufferAggregator in io.druid.query.topn

Methods in io.druid.query.topn that return BufferAggregator

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

Methods in io.druid.query.topn with parameters of type BufferAggregator

Modifier and Type	Method and Description
protected void	PooledTopNAlgorithm.closeAggregators(BufferAggregator[] bufferAggregators)
protected void	PooledTopNAlgorithm.scanAndAggregate(PooledTopNAlgorithm.PooledTopNParams params, int[] positions, BufferAggregator[] theAggregators, int numProcessed) Use aggressive loop unrolling to aggregate the data How this works: The aggregates are evaluated AGG_UNROLL_COUNT at a time.
protected void	PooledTopNAlgorithm.updateResults(PooledTopNAlgorithm.PooledTopNParams params, int[] positions, BufferAggregator[] theAggregators, TopNResultBuilder resultBuilder)

Uses of BufferAggregator in io.druid.segment.incremental

Methods in io.druid.segment.incremental that return BufferAggregator

Modifier and Type	Method and Description
protected BufferAggregator[]	OffheapIncrementalIndex.getAggsForRow(int rowOffset)
protected BufferAggregator[]	OffheapIncrementalIndex.initAggs(AggregatorFactory[] metrics, ThreadLocal<io.druid.data.input.InputRow> in, boolean deserializeComplexMetrics)

Methods in io.druid.segment.incremental with parameters of type BufferAggregator

Modifier and Type	Method and Description
protected Object	OffheapIncrementalIndex.getAggVal(BufferAggregator agg, int rowOffset, int aggPosition)