Package org.elasticsearch.index.query.functionscore

Class ExponentialDecayFunctionBuilder

java.lang.Object

org.elasticsearch.index.query.functionscore.ScoreFunctionBuilder<DFB>

org.elasticsearch.index.query.functionscore.DecayFunctionBuilder<ExponentialDecayFunctionBuilder>

org.elasticsearch.index.query.functionscore.ExponentialDecayFunctionBuilder

All Implemented Interfaces:

NamedWriteable, Writeable, ToXContent, ToXContentFragment

public class ExponentialDecayFunctionBuilder
extends DecayFunctionBuilder<ExponentialDecayFunctionBuilder>

Nested Class Summary

Nested classes/interfaces inherited from class org.elasticsearch.index.query.functionscore.DecayFunctionBuilder

DecayFunctionBuilder.AbstractDistanceScoreFunction

Nested classes/interfaces inherited from interface org.elasticsearch.xcontent.ToXContent

ToXContent.DelegatingMapParams, ToXContent.MapParams, ToXContent.Params

Nested classes/interfaces inherited from interface org.elasticsearch.common.io.stream.Writeable

Writeable.Reader<V>, Writeable.Writer<V>

Field Summary

Fields

Modifier and Type	Field	Description
static final DecayFunction	EXP_DECAY_FUNCTION
static final String	NAME
static final ScoreFunctionParser<ExponentialDecayFunctionBuilder>	PARSER

Fields inherited from class org.elasticsearch.index.query.functionscore.DecayFunctionBuilder

DECAY, DEFAULT_DECAY, DEFAULT_MULTI_VALUE_MODE, OFFSET, ORIGIN, SCALE

Fields inherited from interface org.elasticsearch.xcontent.ToXContent

EMPTY_PARAMS

Constructor Summary

Constructors

Constructor	Description
ExponentialDecayFunctionBuilder(String fieldName, Object origin, Object scale, Object offset)
ExponentialDecayFunctionBuilder(String fieldName, Object origin, Object scale, Object offset, double decay)
ExponentialDecayFunctionBuilder(StreamInput in)	Read from a stream.

Method Summary

Modifier and Type	Method	Description
DecayFunction	getDecayFunction()	Override this function if you want to produce your own scorer.
String	getName()	The name of this score function.

Methods inherited from class org.elasticsearch.index.query.functionscore.DecayFunctionBuilder

doEquals, doHashCode, doToFunction, doWriteTo, doXContent, getFieldName, getFunctionBytes, getMultiValueMode, setMultiValueMode

Methods inherited from class org.elasticsearch.index.query.functionscore.ScoreFunctionBuilder

equals, getWeight, getWriteableName, hashCode, setWeight, toFunction, toXContent, writeTo

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.elasticsearch.xcontent.ToXContentFragment

isFragment

Field Details

NAME

public static final String NAME

See Also:

• Constant Field Values

PARSER

public static final ScoreFunctionParser<ExponentialDecayFunctionBuilder> PARSER

EXP_DECAY_FUNCTION

public static final DecayFunction EXP_DECAY_FUNCTION

Constructor Details

ExponentialDecayFunctionBuilder

public ExponentialDecayFunctionBuilder(String fieldName,
 Object origin,
 Object scale,
 Object offset)

ExponentialDecayFunctionBuilder

public ExponentialDecayFunctionBuilder(String fieldName,
 Object origin,
 Object scale,
 Object offset,
 double decay)

ExponentialDecayFunctionBuilder

public ExponentialDecayFunctionBuilder(StreamInput in)
                                throws IOException

Read from a stream.

Throws:

IOException

Method Details

getName

public String getName()

Description copied from class: ScoreFunctionBuilder

The name of this score function.

Specified by:

getName in class ScoreFunctionBuilder<ExponentialDecayFunctionBuilder>

getDecayFunction

public DecayFunction getDecayFunction()

Description copied from class: DecayFunctionBuilder

Override this function if you want to produce your own scorer.

Specified by:

getDecayFunction in class DecayFunctionBuilder<ExponentialDecayFunctionBuilder>