Package io.druid.query.aggregation

Interface Summary

Interface	Description
Aggregator	An Aggregator is an object that can aggregate metrics.
BufferAggregator	A BufferAggregator is an object that can aggregate metrics into a ByteBuffer.
IntPredicate	can be replaced with http://docs.oracle.com/javase/8/docs/api/java/util/function/IntPredicate.html when druid moves to java 8.
MetricManipulationFn
PostAggregator	Functionally similar to an Aggregator.

Class Summary

Class	Description
AggregatorFactory	Processing related interface An AggregatorFactory is an object that knows how to generate an Aggregator using a ColumnSelectorFactory.
Aggregators
AggregatorUtil
CountAggregator
CountAggregatorFactory
CountBufferAggregator
DoubleMaxAggregator
DoubleMaxAggregatorFactory
DoubleMaxBufferAggregator
DoubleMinAggregator
DoubleMinAggregatorFactory
DoubleMinBufferAggregator
DoubleSumAggregator
DoubleSumAggregatorFactory
DoubleSumBufferAggregator
FilteredAggregator
FilteredAggregatorFactory
FilteredBufferAggregator
Histogram
HistogramAggregator
HistogramAggregatorFactory
HistogramBufferAggregator
HistogramVisual
JavaScriptAggregator
JavaScriptAggregatorFactory
JavaScriptBufferAggregator
LongMaxAggregator
LongMaxAggregatorFactory
LongMaxBufferAggregator
LongMinAggregator
LongMinAggregatorFactory
LongMinBufferAggregator
LongSumAggregator
LongSumAggregatorFactory
LongSumBufferAggregator
MetricManipulatorFns
TimestampAggregator
TimestampAggregatorFactory
TimestampBufferAggregator
TimestampMaxAggregatorFactory
TimestampMinAggregatorFactory
TimestampMinMaxModule

Exception Summary

Exception	Description
AggregatorFactoryNotMergeableException