Feature.FeatureWeight.FeatureScorer (Solr 7.7.0 API)

java.lang.Object
- org.apache.lucene.search.Scorer
- - org.apache.solr.ltr.feature.Feature.FeatureWeight.FeatureScorer

Direct Known Subclasses:

Feature.FeatureWeight.ValueFeatureScorer, FieldLengthFeature.FieldLengthFeatureWeight.FieldLengthFeatureScorer, FieldValueFeature.FieldValueFeatureWeight.FieldValueFeatureScorer, OriginalScoreFeature.OriginalScoreWeight.OriginalScoreScorer, SolrFeature.SolrFeatureWeight.SolrFeatureScorer

Enclosing class:

Feature.FeatureWeight
```
public abstract class Feature.FeatureWeight.FeatureScorer
extends org.apache.lucene.search.Scorer
```
A 'recipe' for computing a feature

Nested Class Summary
- Nested classes/interfaces inherited from class org.apache.lucene.search.Scorer
  org.apache.lucene.search.Scorer.ChildScorer

Field Summary

Fields
Modifier and Type Field Description

protected org.apache.lucene.search.DocIdSetIterator itr

protected String name
- Fields inherited from class org.apache.lucene.search.Scorer
  weight

Constructor Summary

Constructors
Constructor Description

FeatureScorer(Feature.FeatureWeight weight, org.apache.lucene.search.DocIdSetIterator itr)

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`docID()`
`DocInfo`	`getDocInfo()`
`org.apache.lucene.search.DocIdSetIterator`	`iterator()`
`abstract float`	`score()`
`void`	`setDocInfo(DocInfo docInfo)`	Used to provide context from initial score steps to later reranking steps.

Methods inherited from class org.apache.lucene.search.Scorer
getChildren, getWeight, twoPhaseIterator

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

name
```
protected final String name
```

itr

protected final org.apache.lucene.search.DocIdSetIterator itr

Constructor Detail

FeatureScorer

public FeatureScorer(Feature.FeatureWeight weight,
                     org.apache.lucene.search.DocIdSetIterator itr)

Method Detail
- score
```
public abstract float score()
                     throws IOException
```
  Specified by:
  
  score in class org.apache.lucene.search.Scorer
  
  Throws:
  
  IOException
- setDocInfo
```
public void setDocInfo(DocInfo docInfo)
```
  Used to provide context from initial score steps to later reranking steps.
- getDocInfo
```
public DocInfo getDocInfo()
```
- docID
```
public int docID()
```
  Specified by:
  
  docID in class org.apache.lucene.search.Scorer
- iterator
```
public org.apache.lucene.search.DocIdSetIterator iterator()
```
  Specified by:
  
  iterator in class org.apache.lucene.search.Scorer