Examples with DrillSideways org.apache.lucene.facet.DrillSideways used on opensource projects

Example 6 with DrillSideways

use of org.apache.lucene.facet.DrillSideways in project lucene-solr by apache.

the class DistanceFacetsExample method drillDown.

/** User drills down on the specified range. */
public TopDocs drillDown(DoubleRange range) throws IOException {
    // Passing no baseQuery means we drill down on all
    // documents ("browse only"):
    DrillDownQuery q = new DrillDownQuery(null);
    final DoubleValuesSource vs = getDistanceValueSource();
    q.add("field", range.getQuery(getBoundingBoxQuery(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;
}