org.elasticsearch.common.lucene.search.function

Class FunctionScoreQuery

java.lang.Object

org.apache.lucene.search.Query

org.elasticsearch.common.lucene.search.function.FunctionScoreQuery

All Implemented Interfaces:

Cloneable

public class FunctionScoreQuery
extends org.apache.lucene.search.Query

A query that allows for a pluggable boost function to be applied to it.

Constructor Summary

Constructors

Constructor and Description
FunctionScoreQuery(org.apache.lucene.search.Query subQuery, ScoreFunction function)
FunctionScoreQuery(org.apache.lucene.search.Query subQuery, ScoreFunction function, Float minScore)

Method Summary

Methods

Modifier and Type	Method and Description
org.apache.lucene.search.Weight	createWeight(org.apache.lucene.search.IndexSearcher searcher, boolean needsScores)
boolean	equals(Object o)
ScoreFunction	getFunction()
float	getMaxBoost()
org.apache.lucene.search.Query	getSubQuery()
int	hashCode()
org.apache.lucene.search.Query	rewrite(org.apache.lucene.index.IndexReader reader)
void	setCombineFunction(CombineFunction combineFunction)
void	setMaxBoost(float maxBoost)
String	toString(String field)

Methods inherited from class org.apache.lucene.search.Query

clone, getBoost, setBoost, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

FunctionScoreQuery

public FunctionScoreQuery(org.apache.lucene.search.Query subQuery,
                  ScoreFunction function,
                  Float minScore)

FunctionScoreQuery

public FunctionScoreQuery(org.apache.lucene.search.Query subQuery,
                  ScoreFunction function)

Method Detail

setCombineFunction

public void setCombineFunction(CombineFunction combineFunction)

setMaxBoost

public void setMaxBoost(float maxBoost)

getMaxBoost

public float getMaxBoost()

getSubQuery

public org.apache.lucene.search.Query getSubQuery()

getFunction

public ScoreFunction getFunction()

rewrite

public org.apache.lucene.search.Query rewrite(org.apache.lucene.index.IndexReader reader)
                                       throws IOException

Overrides:

rewrite in class org.apache.lucene.search.Query

Throws:

IOException

createWeight

public org.apache.lucene.search.Weight createWeight(org.apache.lucene.search.IndexSearcher searcher,
                                           boolean needsScores)
                                             throws IOException

Overrides:

createWeight in class org.apache.lucene.search.Query

Throws:

IOException

toString

public String toString(String field)

Specified by:

toString in class org.apache.lucene.search.Query

equals

public boolean equals(Object o)

Overrides:

equals in class org.apache.lucene.search.Query

hashCode

public int hashCode()

Overrides:

hashCode in class org.apache.lucene.search.Query