org.apache.lucene.search

Class BooleanTopLevelScorers.ReqSingleOptScorer

java.lang.Object

org.apache.lucene.search.Scorer

org.apache.lucene.search.ReqOptSumScorer

org.apache.lucene.search.BooleanTopLevelScorers.ReqSingleOptScorer

Enclosing class:

BooleanTopLevelScorers

static class BooleanTopLevelScorers.ReqSingleOptScorer
extends ReqOptSumScorer

Used when there are mandatory clauses with one optional clause: we compute coord based on whether the optional clause matched or not.

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	coordBoth
private float	coordReq

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
ReqSingleOptScorer(Scorer reqScorer, Scorer optScorer, float coordReq, float coordBoth)

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

coordReq

private final float coordReq

coordBoth

private final float coordBoth

Constructor Detail

ReqSingleOptScorer

public ReqSingleOptScorer(Scorer reqScorer,
                          Scorer optScorer,
                          float coordReq,
                          float coordBoth)

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