Package org.apache.solr.ltr.scoring

Class FeatureTraversalScorer

java.lang.Object

org.apache.lucene.search.Scorable

org.apache.lucene.search.Scorer

org.apache.solr.ltr.scoring.FeatureTraversalScorer

Direct Known Subclasses:

MultiFeaturesScorer, SingleFeatureScorer

public abstract class FeatureTraversalScorer
extends org.apache.lucene.search.Scorer

This class is responsible for extracting features and using them to score the document.

Nested Class Summary

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

org.apache.lucene.search.Scorable.ChildScorable

Field Summary

Fields

Modifier and Type	Field	Description
protected LTRScoringQuery.FeatureInfo[]	allFeaturesInStore
protected Feature.FeatureWeight[]	extractedFeatureWeights
protected FeatureExtractor	featureExtractor
protected LTRScoringModel	ltrScoringModel
protected LTRScoringQuery.ModelWeight	modelWeight

Constructor Summary

Constructors

Constructor	Description
FeatureTraversalScorer()

Method Summary

Modifier and Type	Method	Description
void	fillFeaturesInfo()
abstract int	getActiveDoc()
abstract DocInfo	getDocInfo()
float	getMaxScore(int upTo)
abstract int	getTargetDoc()
void	reset()
float	score()

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

advanceShallow, docID, iterator, nextDocsAndScores, twoPhaseIterator

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

getChildren, setMinCompetitiveScore, smoothingScore

Methods inherited from class java.lang.Object

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

Field Details

featureExtractor

protected FeatureExtractor featureExtractor

allFeaturesInStore

protected LTRScoringQuery.FeatureInfo[] allFeaturesInStore

ltrScoringModel

protected LTRScoringModel ltrScoringModel

extractedFeatureWeights

protected Feature.FeatureWeight[] extractedFeatureWeights

modelWeight

protected LTRScoringQuery.ModelWeight modelWeight

Constructor Details

FeatureTraversalScorer

public FeatureTraversalScorer()

Method Details

getActiveDoc

public abstract int getActiveDoc()

getTargetDoc

public abstract int getTargetDoc()

getDocInfo

public abstract DocInfo getDocInfo()

reset

public void reset()

fillFeaturesInfo

public void fillFeaturesInfo()
                      throws IOException

Throws:

IOException

score

public float score()
            throws IOException

Specified by:

score in class org.apache.lucene.search.Scorable

Throws:

IOException

getMaxScore

public float getMaxScore(int upTo)

Specified by:

getMaxScore in class org.apache.lucene.search.Scorer