Package org.hibernate.search.backend.lucene.lowlevel.docvalues.impl

Class DoubleMultiValuesToSingleValuesSource

java.lang.Object

org.apache.lucene.search.DoubleValuesSource

org.hibernate.search.backend.lucene.lowlevel.docvalues.impl.DoubleMultiValuesToSingleValuesSource

All Implemented Interfaces:

org.apache.lucene.search.SegmentCacheable

Direct Known Subclasses:

GeoPointDistanceMultiValuesToSingleValuesSource

public abstract class DoubleMultiValuesToSingleValuesSource
extends org.apache.lucene.search.DoubleValuesSource

An implementation of DoubleValuesSource for docvalues with multiple values per document, where multiple values are "aggregated" into a single value according to a given MultiValueMode.

Some of this code was copied and adapted from org.elasticsearch.search.MultiValueMode from the Elasticsearch project.

Field Summary

Fields

Modifier and Type	Field	Description
protected final MultiValueMode	mode
protected final NestedDocsProvider	nestedDocsProvider

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

SCORES

Constructor Summary

Constructors

Constructor	Description
DoubleMultiValuesToSingleValuesSource(MultiValueMode mode, NestedDocsProvider nestedDocsProvider)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
static DoubleMultiValuesToSingleValuesSource	fromDoubleField(String field, MultiValueMode mode, NestedDocsProvider nested)	Creates a DoubleMultiValuesToSingleValuesSource that wraps a double-valued field
static DoubleMultiValuesToSingleValuesSource	fromFloatField(String field, MultiValueMode mode, NestedDocsProvider nested)	Creates a DoubleMultiValuesToSingleValuesSource that wraps a float-valued field
protected abstract SortedNumericDoubleDocValues	getSortedNumericDoubleDocValues(org.apache.lucene.index.LeafReaderContext ctx)
NumericDoubleValues	getValues(org.apache.lucene.index.LeafReaderContext ctx, org.apache.lucene.search.DoubleValues scores)
int	hashCode()
protected NumericDoubleValues	select(SortedNumericDoubleDocValues values)
protected NumericDoubleValues	select(SortedNumericDoubleDocValues values, ChildDocIds childDocsWithValues)

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

constant, explain, fromDoubleField, fromField, fromFloatField, fromIntField, fromLongField, fromQuery, fromScorer, getSortField, needsScores, rewrite, similarityToQueryVector, similarityToQueryVector, toLongValuesSource, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.lucene.search.SegmentCacheable

isCacheable

Field Details

mode

protected final MultiValueMode mode

nestedDocsProvider

protected final NestedDocsProvider nestedDocsProvider

Constructor Details

DoubleMultiValuesToSingleValuesSource

public DoubleMultiValuesToSingleValuesSource(MultiValueMode mode,
 NestedDocsProvider nestedDocsProvider)

Method Details

fromDoubleField

public static DoubleMultiValuesToSingleValuesSource fromDoubleField(String field,
 MultiValueMode mode,
 NestedDocsProvider nested)

Creates a DoubleMultiValuesToSingleValuesSource that wraps a double-valued field

Parameters:

field - the field

mode - the mode

nested - the nested provider

Returns:

A DoubleMultiValuesToSingleValuesSource

fromFloatField

public static DoubleMultiValuesToSingleValuesSource fromFloatField(String field,
 MultiValueMode mode,
 NestedDocsProvider nested)

Creates a DoubleMultiValuesToSingleValuesSource that wraps a float-valued field

Parameters:

field - the field

mode - the mode

nested - the nested provider

Returns:

A DoubleMultiValuesToSingleValuesSource

equals

public boolean equals(Object o)

Specified by:

equals in class org.apache.lucene.search.DoubleValuesSource

hashCode

public int hashCode()

Specified by:

hashCode in class org.apache.lucene.search.DoubleValuesSource

getValues

public NumericDoubleValues getValues(org.apache.lucene.index.LeafReaderContext ctx,
 org.apache.lucene.search.DoubleValues scores)
                              throws IOException

Specified by:

getValues in class org.apache.lucene.search.DoubleValuesSource

Throws:

IOException

getSortedNumericDoubleDocValues

protected abstract SortedNumericDoubleDocValues getSortedNumericDoubleDocValues(org.apache.lucene.index.LeafReaderContext ctx)
                                                                         throws IOException

Throws:

IOException

select

protected NumericDoubleValues select(SortedNumericDoubleDocValues values)

select

protected NumericDoubleValues select(SortedNumericDoubleDocValues values,
 ChildDocIds childDocsWithValues)