Package org.apache.solr.ltr.feature

Class FieldValueFeature.FieldValueFeatureWeight

java.lang.Object

org.apache.lucene.search.Weight

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

org.apache.solr.ltr.feature.FieldValueFeature.FieldValueFeatureWeight

All Implemented Interfaces:

org.apache.lucene.search.SegmentCacheable

Enclosing class:

FieldValueFeature

public class FieldValueFeature.FieldValueFeatureWeight
extends Feature.FeatureWeight

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	FieldValueFeature.FieldValueFeatureWeight.DefaultValueFieldValueFeatureScorer	A FeatureScorer that always returns the default value.
class	FieldValueFeature.FieldValueFeatureWeight.FieldValueFeatureScorer	A FeatureScorer that reads the stored value for a field
class	FieldValueFeature.FieldValueFeatureWeight.NumericDocValuesFieldValueFeatureScorer	A FeatureScorer that reads the numeric docValues for a field
class	FieldValueFeature.FieldValueFeatureWeight.SortedDocValuesFieldValueFeatureScorer	A FeatureScorer that reads the sorted docValues for a field

Nested classes/interfaces inherited from class org.apache.solr.ltr.feature.Feature.FeatureWeight

Feature.FeatureWeight.FeatureScorer, Feature.FeatureWeight.FilterFeatureScorer, Feature.FeatureWeight.ValueFeatureScorer

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

org.apache.lucene.search.Weight.DefaultBulkScorer

Field Summary

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

efi, macroExpander, originalQuery, request, searcher

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

parentQuery

Constructor Summary

Constructors

Constructor	Description
FieldValueFeatureWeight(org.apache.lucene.search.IndexSearcher searcher, SolrQueryRequest request, org.apache.lucene.search.Query originalQuery, Map<String,String[]> efi)

Method Summary

Modifier and Type	Method	Description
protected long	readNumericDocValuesDate(long val)	Override this method in sub classes that wish to use not an absolute time but an interval such as document age or remaining shelf life relative to a specific date or relative to now.
Feature.FeatureWeight.FeatureScorer	scorer(org.apache.lucene.index.LeafReaderContext context)	Return a FeatureScorer that uses docValues or storedFields if no docValues are present

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

explain, getDefaultValue, getIndex, getName, isCacheable, toString

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

bulkScorer, count, getQuery, matches, scorerSupplier

Methods inherited from class java.lang.Object

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

Constructor Detail

FieldValueFeatureWeight

public FieldValueFeatureWeight(org.apache.lucene.search.IndexSearcher searcher,
                               SolrQueryRequest request,
                               org.apache.lucene.search.Query originalQuery,
                               Map<String,String[]> efi)

Method Detail

readNumericDocValuesDate

protected long readNumericDocValuesDate(long val)

Override this method in sub classes that wish to use not an absolute time but an interval such as document age or remaining shelf life relative to a specific date or relative to now.

Parameters:

val - value of the field

Returns:

value after transformation

scorer

public Feature.FeatureWeight.FeatureScorer scorer(org.apache.lucene.index.LeafReaderContext context)
                                           throws IOException

Return a FeatureScorer that uses docValues or storedFields if no docValues are present

Specified by:

scorer in class Feature.FeatureWeight

Parameters:

context - the segment this FeatureScorer is working with

Returns:

FeatureScorer for the current segment and field

Throws:

IOException - as defined by abstract class Feature