com.facebook.presto.operator.aggregation

Class NumericHistogramStateFactory

java.lang.Object

com.facebook.presto.operator.aggregation.NumericHistogramStateFactory

All Implemented Interfaces:

AccumulatorStateFactory<DoubleHistogramAggregation.State>

public class NumericHistogramStateFactory
extends Object
implements AccumulatorStateFactory<DoubleHistogramAggregation.State>

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	NumericHistogramStateFactory.GroupedState
static class	NumericHistogramStateFactory.SingleState

Constructor Summary

Constructors

Constructor and Description
NumericHistogramStateFactory()

Method Summary

Modifier and Type	Method and Description
DoubleHistogramAggregation.State	createGroupedState()
DoubleHistogramAggregation.State	createSingleState()
Class<? extends DoubleHistogramAggregation.State>	getGroupedStateClass()
Class<? extends DoubleHistogramAggregation.State>	getSingleStateClass()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NumericHistogramStateFactory

public NumericHistogramStateFactory()

Method Detail

createSingleState

public DoubleHistogramAggregation.State createSingleState()

Specified by:

createSingleState in interface AccumulatorStateFactory<DoubleHistogramAggregation.State>

getSingleStateClass

public Class<? extends DoubleHistogramAggregation.State> getSingleStateClass()

Specified by:

getSingleStateClass in interface AccumulatorStateFactory<DoubleHistogramAggregation.State>

createGroupedState

public DoubleHistogramAggregation.State createGroupedState()

Specified by:

createGroupedState in interface AccumulatorStateFactory<DoubleHistogramAggregation.State>

getGroupedStateClass

public Class<? extends DoubleHistogramAggregation.State> getGroupedStateClass()

Specified by:

getGroupedStateClass in interface AccumulatorStateFactory<DoubleHistogramAggregation.State>