org.apache.solr.request

Class DocValuesFacets

java.lang.Object

org.apache.solr.request.DocValuesFacets

public class DocValuesFacets
extends Object

Computes term facets for docvalues field (single or multivalued).

This is basically a specialized case of the code in SimpleFacets. Instead of working on a top-level reader view (binary-search per docid), it collects per-segment, but maps ordinals to global ordinal space using MultiDocValues' OrdinalMap.

This means the ordinal map is created per-reopen: O(nterms), but this may perform better than PerSegmentSingleValuedFaceting which has to merge O(nterms) per query. Additionally it works for multi-valued fields.

Method Summary

Methods

Modifier and Type	Method and Description
static NamedList<Integer>	getCounts(SolrIndexSearcher searcher, DocSet docs, String fieldName, int offset, int limit, int mincount, boolean missing, String sort, String prefix)

Methods inherited from class java.lang.Object

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

Method Detail

getCounts

public static NamedList<Integer> getCounts(SolrIndexSearcher searcher,
                           DocSet docs,
                           String fieldName,
                           int offset,
                           int limit,
                           int mincount,
                           boolean missing,
                           String sort,
                           String prefix)
                                    throws IOException

Throws:

IOException