org.elasticsearch.common.lucene.search.function

Class FunctionScoreQuery

java.lang.Object

org.apache.lucene.search.Query

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

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

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

Field Summary

Fields

Modifier and Type	Field and Description
static float	DEFAULT_MAX_BOOST

Constructor Summary

Constructors

Constructor and Description
FunctionScoreQuery(org.apache.lucene.search.Query subQuery, ScoreFunction function)
FunctionScoreQuery(org.apache.lucene.search.Query subQuery, ScoreFunction function, java.lang.Float minScore, CombineFunction combineFunction, float maxBoost)

Method Summary

Modifier and Type	Method and Description
org.apache.lucene.search.Weight	createWeight(org.apache.lucene.search.IndexSearcher searcher, boolean needsScores)
boolean	equals(java.lang.Object o)
ScoreFunction	getFunction()
float	getMaxBoost()
java.lang.Float	getMinScore()
org.apache.lucene.search.Query	getSubQuery()
int	hashCode()
org.apache.lucene.search.Query	rewrite(org.apache.lucene.index.IndexReader reader)
java.lang.String	toString(java.lang.String field)

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

classHash, sameClassAs, toString

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_MAX_BOOST

public static final float DEFAULT_MAX_BOOST

See Also:

Constant Field Values

Constructor Detail

FunctionScoreQuery

public FunctionScoreQuery(org.apache.lucene.search.Query subQuery,
                          ScoreFunction function,
                          java.lang.Float minScore,
                          CombineFunction combineFunction,
                          float maxBoost)

FunctionScoreQuery

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

Method Detail

getMaxBoost

public float getMaxBoost()

getSubQuery

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

getFunction

public ScoreFunction getFunction()

getMinScore

public java.lang.Float getMinScore()

rewrite

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

Overrides:

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

Throws:

java.io.IOException

createWeight

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

Overrides:

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

Throws:

java.io.IOException

toString

public java.lang.String toString(java.lang.String field)

Specified by:

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

equals

public boolean equals(java.lang.Object o)

Specified by:

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

hashCode

public int hashCode()

Specified by:

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