org.apache.lucene.queries.function

Class ValueSourceScorer

java.lang.Object

org.apache.lucene.search.DocIdSetIterator

org.apache.lucene.search.Scorer

org.apache.lucene.queries.function.ValueSourceScorer

public class ValueSourceScorer
extends Scorer

Scorer which returns the result of FunctionValues.floatVal(int) as the score for a document.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.search.Scorer

Scorer.ChildScorer

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	checkDeletes
protected int	maxDoc
protected IndexReader	reader
protected FunctionValues	values

Fields inherited from class org.apache.lucene.search.Scorer

weight

Fields inherited from class org.apache.lucene.search.DocIdSetIterator

NO_MORE_DOCS

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ValueSourceScorer(IndexReader reader, FunctionValues values)

Method Summary

Methods

Modifier and Type	Method and Description
int	advance(int target)
long	cost()
int	docID()
int	freq()
IndexReader	getReader()
boolean	matches(int doc)
boolean	matchesValue(int doc)
int	nextDoc()
float	score()
void	setCheckDeletes(boolean checkDeletes)

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

asTwoPhaseIterator, getChildren, getWeight

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

all, empty, slowAdvance

Methods inherited from class java.lang.Object

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

Field Detail

reader

protected final IndexReader reader

maxDoc

protected final int maxDoc

values

protected final FunctionValues values

checkDeletes

protected boolean checkDeletes

Constructor Detail

ValueSourceScorer

protected ValueSourceScorer(IndexReader reader,
                 FunctionValues values)

Method Detail

getReader

public IndexReader getReader()

setCheckDeletes

public void setCheckDeletes(boolean checkDeletes)

matches

public boolean matches(int doc)

matchesValue

public boolean matchesValue(int doc)

docID

public int docID()

Specified by:

docID in class DocIdSetIterator

nextDoc

public int nextDoc()
            throws IOException

Specified by:

nextDoc in class DocIdSetIterator

Throws:

IOException

advance

public int advance(int target)
            throws IOException

Specified by:

advance in class DocIdSetIterator

Throws:

IOException

score

public float score()
            throws IOException

Specified by:

score in class Scorer

Throws:

IOException

freq

public int freq()
         throws IOException

Specified by:

freq in class Scorer

Throws:

IOException

cost

public long cost()

Specified by:

cost in class DocIdSetIterator