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Subject [GitHub] [lucenenet] lukaskolafa opened a new issue #247: FacetsCollector.Search n Parameter unclear
Date Mon, 04 May 2020 10:03:22 GMT

lukaskolafa opened a new issue #247:

   Hello, I am scratching my head, what is the purpose of the parameter `n` in the method
`FacetsCollector.Search(..., n, ...)`. From various posts out there in internet (including
java questions), it looks like the argument limits the results for Facets which deliver n+
hits. But this is not the behavior I observe, in my case, whatever number I use, the results
is the same. Here is my code I use, based on the sample I found [here](

   One suspicious place in the code is that the return value of the `Search` method is not
used. But this is the same case as in the referenced github sample.
   any help is appreciated.. thank you!
               BooleanQuery searchQuery = this.CreateLuceneSearchQuery(performCourseSearchRequest);
               var facetsCollector = new FacetsCollector();
                * This value should theoretically limit the result to return only facets with
at least N results (hits). For some reason this
                * seems not being working and regardless what the number is, it returns always
               const int NumHitsLimit = 1;
               // Return value is not used, the searchQuery affects the referenced facetsCollector
               _ = FacetsCollector.Search(catalogSearchContainer.GetCurrentIndexSearcher(),
searchQuery, NumHitsLimit, facetsCollector);
               var facets = new FastTaxonomyFacetCounts(catalogSearchContainer.GetCurrentTaxonomyReader(),
FacetsConfigFactory.CreateFacetsConfig(), facetsCollector);
               foreach (var facetField in facetFields)
                   FacetResult facetResult = facets.GetTopChildren(MaxFacetChildrenHits, facetField);
                   if (facetResult != null)
                       facetResults.Add(new FacetItem(facetResult));
               return facetResults;

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