io.druid.query.aggregation

Class DoubleAggregateCombiner

java.lang.Object

io.druid.query.aggregation.DoubleAggregateCombiner

All Implemented Interfaces:

AggregateCombiner<Double>, HotLoopCallee, ColumnValueSelector<Double>, DoubleColumnSelector

public abstract class DoubleAggregateCombiner
extends Object
implements AggregateCombiner<Double>, DoubleColumnSelector

Specialization of AggregateCombiner for primitive double aggregations.

Constructor Summary

Constructors

Constructor and Description
DoubleAggregateCombiner()

Method Summary

Modifier and Type	Method and Description
void	inspectRuntimeShape(RuntimeShapeInspector inspector) Implementations of this method should call inspector.visit() with all fields of this class, which meet two conditions: 1.

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.druid.query.aggregation.AggregateCombiner

fold, reset

Methods inherited from interface io.druid.segment.DoubleColumnSelector

classOfObject, getDouble, getFloat, getLong, getObject

Constructor Detail

DoubleAggregateCombiner

public DoubleAggregateCombiner()

Method Detail

inspectRuntimeShape

public void inspectRuntimeShape(RuntimeShapeInspector inspector)

Description copied from interface: HotLoopCallee

Implementations of this method should call inspector.visit() with all fields of this class, which meet two conditions: 1. They are used in methods of this class, annotated with CalledFromHotLoop 2. They are either: a. Nullable objects b. Instances of HotLoopCallee c. Objects, which don't always have a specific class in runtime. For example, a field of type Set could be HashSet or TreeSet in runtime, depending on how this instance (the instance on which inspectRuntimeShape() is called) is configured. d. ByteBuffer or similar objects, where byte order matters e. boolean flags, affecting branch taking f. Arrays of objects, meeting any of conditions a-e.

Specified by:

inspectRuntimeShape in interface HotLoopCallee