lucene-solr-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From SOLR4189 <Klin892...@yandex.ru>
Subject Solr 6: how to get SortedSetDocValues from index by field name
Date Tue, 13 Jun 2017 17:49:53 GMT
How do I get SortedSetDocValues from index by field name?

I try it and it works for me but I didn't understand why to use
leaves.get(0)? What does it mean? (I saw such using in
TestUninvertedReader.java of SOLR-6.5.1):

*Map<String, UninvertingReader.Type> mapping = new HashMap<>();
mapping.put(fieldName, UninvertingReader.Type.SORTED);

SolrIndexSearcher searcher = req.getSearcher();

DirectoryReader dReader = searcher.getIndexReader();
LeafReader reader = null;

if (!dReader.leaves.isEmpty()) {
  reader = dReader.leaves().get(0).reader;
  return null;
}

SortedSetDocValues sourceIndex = reader.getSortedSetDocValues(fieldName);*

Maybe do I need to use SlowAtomicReader, like it:

*
UninvertingReader reader = new
UninvertingReader(searcher.getSlowAtomicReader(), mapping)*;

What is right way to get SortedSetDocValues and why?



--
View this message in context: http://lucene.472066.n3.nabble.com/Solr-6-how-to-get-SortedSetDocValues-from-index-by-field-name-tp4340388.html
Sent from the Solr - User mailing list archive at Nabble.com.

Mime
View raw message