org.apache.lucene.search

Class BooleanTopLevelScorers.ReqMultiOptScorer

java.lang.Object

org.apache.lucene.search.Scorer

org.apache.lucene.search.ReqOptSumScorer

org.apache.lucene.search.BooleanTopLevelScorers.ReqMultiOptScorer

Enclosing class:

BooleanTopLevelScorers

static class BooleanTopLevelScorers.ReqMultiOptScorer
extends ReqOptSumScorer

Used when there are mandatory clauses with optional clauses: we compute coord based on how many optional subscorers matched (freq).

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
private float[]	coords
private int	requiredCount

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

optIterator, optScorer, reqScorer

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

weight

Constructor Summary

Constructors

Constructor and Description
ReqMultiOptScorer(Scorer reqScorer, Scorer optScorer, int requiredCount, float[] coords)

Method Summary

Modifier and Type	Method and Description
float	score() Returns the score of the current document matching the query.

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

docID, freq, getChildren, iterator, twoPhaseIterator

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

getWeight

Methods inherited from class java.lang.Object

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

Field Detail

requiredCount

private final int requiredCount

coords

private final float[] coords

Constructor Detail

ReqMultiOptScorer

public ReqMultiOptScorer(Scorer reqScorer,
                         Scorer optScorer,
                         int requiredCount,
                         float[] coords)

Method Detail

score

public float score()
            throws java.io.IOException

Description copied from class: ReqOptSumScorer

Returns the score of the current document matching the query. Initially invalid, until the ReqOptSumScorer.iterator() is advanced the first time.

Overrides:

score in class ReqOptSumScorer

Returns:

The score of the required scorer, eventually increased by the score of the optional scorer when it also matches the current document.

Throws:

java.io.IOException