Examples of org.apache.lucene.facet.range.DoubleRangeFacetCounts

org.apache.lucene.facet.range.DoubleRangeFacetCounts
{@link Facets} implementation that computes counts fordynamic double ranges from a provided {@link ValueSource}, using {@link FunctionValues#doubleVal}. Use this for dimensions that change in real-time (e.g. a relative time based dimension like "Past day", "Past 2 days", etc.) or that change for each request (e.g. distance from the user's location, "< 1 km", "< 2 km", etc.).
If you had indexed your field using {@link FloatDocValuesField} then pass {@link FloatFieldSource}as the {@link ValueSource}; if you used {@link DoubleDocValuesField} then pass {@link DoubleFieldSource} (this is the default used when youpass just a the field name). @lucene.experimental


    FacetsCollector fc = new FacetsCollector();


    searcher.search(new MatchAllDocsQuery(), fc);


    Facets facets = new DoubleRangeFacetCounts("field", getDistanceValueSource(), fc,
                                               getBoundingBoxFilter(ORIGIN_LATITUDE, ORIGIN_LONGITUDE, 10.0),
                                               ONE_KM,
                                               TWO_KM,
                                               FIVE_KM,
                                               TEN_KM);


    return facets.getTopChildren(10, "field");
  }

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    q.add("field", range.getFilter(getBoundingBoxFilter(ORIGIN_LATITUDE, ORIGIN_LONGITUDE, range.max), vs));
    DrillSideways ds = new DrillSideways(searcher, config, (TaxonomyReader) null) {
        @Override
        protected Facets buildFacetsResult(FacetsCollector drillDowns, FacetsCollector[] drillSideways, String[] drillSidewaysDims) throws IOException {        
          assert drillSideways.length == 1;
          return new DoubleRangeFacetCounts("field", vs, drillSideways[0], ONE_KM, TWO_KM, FIVE_KM, TEN_KM);
        }
      };
    return ds.search(q, 10).hits;
  }

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    FacetsCollector fc = new FacetsCollector();


    searcher.search(new MatchAllDocsQuery(), fc);


    Facets facets = new DoubleRangeFacetCounts("field", getDistanceValueSource(), fc,
                                               getBoundingBoxFilter(ORIGIN_LATITUDE, ORIGIN_LONGITUDE, 10.0),
                                               ONE_KM,
                                               TWO_KM,
                                               FIVE_KM,
                                               TEN_KM);


    return facets.getTopChildren(10, "field");
  }

View Full Code Here

    q.add("field", range.getFilter(getBoundingBoxFilter(ORIGIN_LATITUDE, ORIGIN_LONGITUDE, range.max), vs));
    DrillSideways ds = new DrillSideways(searcher, config, (TaxonomyReader) null) {
        @Override
        protected Facets buildFacetsResult(FacetsCollector drillDowns, FacetsCollector[] drillSideways, String[] drillSidewaysDims) throws IOException {        
          assert drillSideways.length == 1;
          return new DoubleRangeFacetCounts("field", vs, drillSideways[0], ONE_KM, TWO_KM, FIVE_KM, TEN_KM);
        }
      };
    return ds.search(q, 10).hits;
  }

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Related Classes of org.apache.lucene.facet.range.DoubleRangeFacetCounts

org.apache.lucene.demo.facet.DistanceFacetsExample

org.apache.lucene.queries.function.FunctionValues

org.apache.lucene.queries.function.valuesource.DoubleFieldSource

org.apache.lucene.search.DocIdSet

org.apache.lucene.search.DocIdSetIterator

org.apache.lucene.util.Bits

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