org.apache.solr.ltr.feature

Class Feature.FeatureWeight.ValueFeatureScorer

java.lang.Object

org.apache.lucene.search.Scorable

org.apache.lucene.search.Scorer

org.apache.solr.ltr.feature.Feature.FeatureWeight.FeatureScorer

org.apache.solr.ltr.feature.Feature.FeatureWeight.ValueFeatureScorer

Enclosing class:

Feature.FeatureWeight

public class Feature.FeatureWeight.ValueFeatureScorer
extends Feature.FeatureWeight.FeatureScorer

Default FeatureScorer class that returns the score passed in. Can be used as a simple ValueFeature, or to return a default scorer in case an underlying feature's scorer is null.

Nested Class Summary

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

Scorable.ChildScorable

Field Summary

Fields inherited from class org.apache.solr.ltr.feature.Feature.FeatureWeight.FeatureScorer

itr, name

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

weight

Constructor Summary

Constructors

Constructor and Description
ValueFeatureScorer(Feature.FeatureWeight weight, float constScore, DocIdSetIterator itr)

Method Summary

Modifier and Type	Method and Description
float	getMaxScore(int upTo)
float	score()

Methods inherited from class org.apache.solr.ltr.feature.Feature.FeatureWeight.FeatureScorer

docID, getDocInfo, iterator, setDocInfo

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

advanceShallow, getWeight, twoPhaseIterator

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

getChildren, setMinCompetitiveScore

Methods inherited from class java.lang.Object

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

Constructor Detail

ValueFeatureScorer

public ValueFeatureScorer(Feature.FeatureWeight weight,
                          float constScore,
                          DocIdSetIterator itr)

Method Detail

score

public float score()

Specified by:

score in class Feature.FeatureWeight.FeatureScorer

getMaxScore

public float getMaxScore(int upTo)
                  throws IOException

Specified by:

getMaxScore in class Scorer

Throws:

IOException