Package org.apache.druid.segment.selector.settable

Class SettableValueDoubleColumnValueSelector

java.lang.Object

org.apache.druid.segment.selector.settable.SettableValueDoubleColumnValueSelector

All Implemented Interfaces:

HotLoopCallee, BaseDoubleColumnValueSelector, BaseNullableColumnValueSelector

public class SettableValueDoubleColumnValueSelector
extends Object
implements BaseDoubleColumnValueSelector

A BaseDoubleColumnValueSelector impl to return settable double value on calls to BaseDoubleColumnValueSelector.getDouble()

Constructor Summary

Constructors

Constructor	Description
SettableValueDoubleColumnValueSelector()

Method Summary

Modifier and Type	Method	Description
double	getDouble()
void	inspectRuntimeShape(RuntimeShapeInspector inspector)	Implementations of this method should call inspector.visit() with all fields of this class, which meet two conditions: 1.
boolean	isNull()	Returns true if the primitive long, double, or float value returned by this selector should be treated as null.
void	setValue(double value)

Methods inherited from class java.lang.Object

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

Constructor Detail

SettableValueDoubleColumnValueSelector

public SettableValueDoubleColumnValueSelector()

Method Detail

getDouble

public double getDouble()

Specified by:

getDouble in interface BaseDoubleColumnValueSelector

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

isNull

public boolean isNull()

Description copied from interface: BaseNullableColumnValueSelector

Returns true if the primitive long, double, or float value returned by this selector should be treated as null. Users of BaseLongColumnValueSelector.getLong(), BaseDoubleColumnValueSelector.getDouble() and BaseFloatColumnValueSelector.getFloat() must check this method first, or else they may improperly use placeholder values returned by the primitive get methods. Users of BaseObjectColumnValueSelector.getObject() should not call this method. Instead, call "getObject" and check if it is null.

Specified by:

isNull in interface BaseNullableColumnValueSelector

setValue

public void setValue(double value)