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

Class TextMultiValuesToSingleValuesSource

java.lang.Object

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

public abstract class TextMultiValuesToSingleValuesSource
extends Object

A source of SortedDocValues (text doc values) 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 MultiValueMode	mode
protected NestedDocsProvider	nestedDocsProvider

Constructor Summary

Constructors

Constructor	Description
TextMultiValuesToSingleValuesSource(MultiValueMode mode, NestedDocsProvider nestedDocsProvider)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
static TextMultiValuesToSingleValuesSource	fromField(String field, MultiValueMode mode, NestedDocsProvider nested)	Creates a TextMultiValuesToSingleValuesSource that wraps a text field
protected abstract org.apache.lucene.index.SortedSetDocValues	getSortedSetDocValues(org.apache.lucene.index.LeafReaderContext ctx)
org.apache.lucene.index.SortedDocValues	getValues(org.apache.lucene.index.LeafReaderContext ctx)
int	hashCode()
protected org.apache.lucene.index.SortedDocValues	select(org.apache.lucene.index.SortedSetDocValues values)
protected org.apache.lucene.index.SortedDocValues	select(org.apache.lucene.index.SortedSetDocValues values, ChildDocIds childDocsWithValues)

Methods inherited from class java.lang.Object

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

Field Detail

mode

protected final MultiValueMode mode

nestedDocsProvider

protected final NestedDocsProvider nestedDocsProvider

Constructor Detail

TextMultiValuesToSingleValuesSource

public TextMultiValuesToSingleValuesSource(MultiValueMode mode,
                                           NestedDocsProvider nestedDocsProvider)

Method Detail

fromField

public static TextMultiValuesToSingleValuesSource fromField(String field,
                                                            MultiValueMode mode,
                                                            NestedDocsProvider nested)

Creates a TextMultiValuesToSingleValuesSource that wraps a text field

Parameters:

field - the field

mode - the mode

nested - the nested provider

Returns:

DoubleMultiValuesSource

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getValues

public org.apache.lucene.index.SortedDocValues getValues(org.apache.lucene.index.LeafReaderContext ctx)
                                                  throws IOException

Throws:

IOException

getSortedSetDocValues

protected abstract org.apache.lucene.index.SortedSetDocValues getSortedSetDocValues(org.apache.lucene.index.LeafReaderContext ctx)
                                                                             throws IOException

Throws:

IOException

select

protected org.apache.lucene.index.SortedDocValues select(org.apache.lucene.index.SortedSetDocValues values)

select

protected org.apache.lucene.index.SortedDocValues select(org.apache.lucene.index.SortedSetDocValues values,
                                                         ChildDocIds childDocsWithValues)