Package io.druid.query.aggregation

Interface Summary

Interface	Description
Aggregator	An Aggregator is an object that can aggregate metrics.
AggregatorFactory	Processing related interface An AggregatorFactory is an object that knows how to generate an Aggregator using a ColumnSelectorFactory.
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
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
MaxAggregatorFactory	This class can be removed when we dont need "max" aggregator backward compatibility
MetricManipulatorFns
MinAggregatorFactory	This class can be removed when we dont need "min" aggregator backward compatibility