Package com.atlassian.confluence.internal.search.v2.lucene

Class LuceneMultiTermFieldComparator<T>

java.lang.Object

org.apache.lucene.search.FieldComparator<T>

com.atlassian.confluence.internal.search.v2.lucene.LuceneTermFieldComparator<T>

com.atlassian.confluence.internal.search.v2.lucene.LuceneMultiTermFieldComparator<T>

public class LuceneMultiTermFieldComparator<T>
extends LuceneTermFieldComparator<T>

When returned from FieldComparatorSource.newComparator, a LuceneMultiTermFieldComparator compares hits so as to determine their sort order when collecting results, using a custom sort comparator that operates on terms that may have multiple values per document.

Nested Class Summary

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

org.apache.lucene.search.FieldComparator.ByteComparator, org.apache.lucene.search.FieldComparator.DocComparator, org.apache.lucene.search.FieldComparator.DoubleComparator, org.apache.lucene.search.FieldComparator.FloatComparator, org.apache.lucene.search.FieldComparator.IntComparator, org.apache.lucene.search.FieldComparator.LongComparator, org.apache.lucene.search.FieldComparator.NumericComparator<T extends Number>, org.apache.lucene.search.FieldComparator.RelevanceComparator, org.apache.lucene.search.FieldComparator.ShortComparator, org.apache.lucene.search.FieldComparator.TermOrdValComparator, org.apache.lucene.search.FieldComparator.TermValComparator

Constructor Summary

Constructors

Constructor	Description
LuceneMultiTermFieldComparator(String fieldName, Function<Iterable<org.apache.lucene.util.BytesRef>,T> parser, Comparator<T> comparator, int numHits)

Method Summary

Modifier and Type	Method	Description
protected org.apache.lucene.index.SortedSetDocValues	getDocTermOrds(org.apache.lucene.index.AtomicReaderContext context)
Function<Iterable<org.apache.lucene.util.BytesRef>,T>	getParser()
protected T	getSortValue(int doc)
org.apache.lucene.search.FieldComparator<T>	setNextReader(org.apache.lucene.index.AtomicReaderContext context)

Methods inherited from class com.atlassian.confluence.internal.search.v2.lucene.LuceneTermFieldComparator

compare, compareBottom, compareDocToValue, compareValues, copy, getFieldName, getTerms, setBottom, value

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

setScorer

Methods inherited from class java.lang.Object

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

Constructor Detail

LuceneMultiTermFieldComparator

public LuceneMultiTermFieldComparator(String fieldName,
                                      Function<Iterable<org.apache.lucene.util.BytesRef>,T> parser,
                                      Comparator<T> comparator,
                                      int numHits)

Method Detail

getParser

public Function<Iterable<org.apache.lucene.util.BytesRef>,T> getParser()

setNextReader

public org.apache.lucene.search.FieldComparator<T> setNextReader(org.apache.lucene.index.AtomicReaderContext context)
                                                          throws IOException

Overrides:

setNextReader in class LuceneTermFieldComparator<T>

Throws:

IOException

getDocTermOrds

protected org.apache.lucene.index.SortedSetDocValues getDocTermOrds(org.apache.lucene.index.AtomicReaderContext context)
                                                             throws IOException

Throws:

IOException

getSortValue

protected T getSortValue(int doc)

Overrides:

getSortValue in class LuceneTermFieldComparator<T>