Package org.apache.lucene.queries.function

Examples of org.apache.lucene.queries.function.ValueSource$ValueSourceComparator

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  @SuppressWarnings({"unchecked","rawtypes"})
  private AbstractAllGroupHeadsCollector<?> createRandomCollector(String groupField, Sort sortWithinGroup, boolean canUseIDV, DocValuesType valueType) {
    AbstractAllGroupHeadsCollector<? extends AbstractAllGroupHeadsCollector.GroupHead> collector;
    if (random().nextBoolean()) {
      ValueSource vs = new BytesRefFieldSource(groupField);
      collector =  new FunctionAllGroupHeadsCollector(vs, new HashMap<Object, Object>(), sortWithinGroup);
    } else {
      collector =  TermAllGroupHeadsCollector.create(groupField, sortWithinGroup);
    }
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      assertEquals(121.6d, DistanceUtils.degrees2Dist(doc1DistDEG, DistanceUtils.EARTH_MEAN_RADIUS_KM), 0.1);
    }
    //--Match all, order by distance ascending
    {
      Point pt = ctx.makePoint(60, -50);
      ValueSource valueSource = strategy.makeDistanceValueSource(pt);//the distance (in degrees)
      Sort distSort = new Sort(valueSource.getSortField(false)).rewrite(indexSearcher);//false=asc dist
      TopDocs docs = indexSearcher.search(new MatchAllDocsQuery(), 10, distSort);
      assertDocMatchedIds(indexSearcher, docs, 4, 20, 2);
      //To get the distance, we could compute from stored values like earlier.
      // However in this example we sorted on it, and the distance will get
      // computed redundantly.  If the distance is only needed for the top-X
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  }

  private AbstractFirstPassGroupingCollector<?> createRandomFirstPassCollector(String groupField, Sort groupSort, int topDocs) throws IOException {
    AbstractFirstPassGroupingCollector<?> selected;
    if (random().nextBoolean()) {
      ValueSource vs = new BytesRefFieldSource(groupField);
      selected = new FunctionFirstPassGroupingCollector(vs, new HashMap<Object, Object>(), groupSort, topDocs);
    } else {
      selected = new TermFirstPassGroupingCollector(groupField, groupSort, topDocs);
    }
    if (VERBOSE) {
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    return selected;
  }

  private AbstractFirstPassGroupingCollector<?> createFirstPassCollector(String groupField, Sort groupSort, int topDocs, AbstractFirstPassGroupingCollector<?> firstPassGroupingCollector) throws IOException {
    if (TermFirstPassGroupingCollector.class.isAssignableFrom(firstPassGroupingCollector.getClass())) {
      ValueSource vs = new BytesRefFieldSource(groupField);
      return new FunctionFirstPassGroupingCollector(vs, new HashMap<Object, Object>(), groupSort, topDocs);
    } else {
      return new TermFirstPassGroupingCollector(groupField, groupSort, topDocs);
    }
  }
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    if (TermFirstPassGroupingCollector.class.isAssignableFrom(firstPassGroupingCollector.getClass())) {
      Collection<SearchGroup<BytesRef>> searchGroups = firstPassGroupingCollector.getTopGroups(groupOffset, fillSortFields);
      return (AbstractSecondPassGroupingCollector) new TermSecondPassGroupingCollector(groupField, searchGroups, groupSort, sortWithinGroup, maxDocsPerGroup , getScores, getMaxScores, fillSortFields);
    } else {
      ValueSource vs = new BytesRefFieldSource(groupField);
      Collection<SearchGroup<MutableValue>> searchGroups = firstPassGroupingCollector.getTopGroups(groupOffset, fillSortFields);
      return (AbstractSecondPassGroupingCollector) new FunctionSecondPassGroupingCollector(searchGroups, groupSort, sortWithinGroup, maxDocsPerGroup, getScores, getMaxScores, fillSortFields, vs, new HashMap());
    }
  }
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                                                                        boolean getMaxScores,
                                                                        boolean fillSortFields) throws IOException {
    if (firstPassGroupingCollector.getClass().isAssignableFrom(TermFirstPassGroupingCollector.class)) {
      return new TermSecondPassGroupingCollector(groupField, searchGroups, groupSort, sortWithinGroup, maxDocsPerGroup , getScores, getMaxScores, fillSortFields);
    } else {
      ValueSource vs = new BytesRefFieldSource(groupField);
      List<SearchGroup<MutableValue>> mvalSearchGroups = new ArrayList<SearchGroup<MutableValue>>(searchGroups.size());
      for (SearchGroup<BytesRef> mergedTopGroup : searchGroups) {
        SearchGroup<MutableValue> sg = new SearchGroup<MutableValue>();
        MutableValueStr groupValue = new MutableValueStr();
        if (mergedTopGroup.groupValue != null) {
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  private AbstractAllGroupsCollector<?> createAllGroupsCollector(AbstractFirstPassGroupingCollector<?> firstPassGroupingCollector,
                                                              String groupField) {
    if (firstPassGroupingCollector.getClass().isAssignableFrom(TermFirstPassGroupingCollector.class)) {
      return new TermAllGroupsCollector(groupField);
    } else {
      ValueSource vs = new BytesRefFieldSource(groupField);
      return new FunctionAllGroupsCollector(vs, new HashMap<Object, Object>());
    }
  }
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   * Use in another manner is likely to result in an {@link java.lang.UnsupportedOperationException}
   * to prevent misuse because the filter can't efficiently work via iteration.
   */
  @Override
  public Filter makeFilter(final SpatialArgs args) {
    ValueSource shapeValueSource = makeShapeValueSource();
    ShapePredicateValueSource predicateValueSource = new ShapePredicateValueSource(
        shapeValueSource, args.getOperation(), args.getShape());
    return new PredicateValueSourceFilter(predicateValueSource);
  }
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    }
   
    DirectoryReader r = DirectoryReader.open(iw, true);
    DirectoryTaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoWriter);

    ValueSource valueSource = new ValueSource() {
      @Override
      public FunctionValues getValues(@SuppressWarnings("rawtypes") Map context, AtomicReaderContext readerContext) throws IOException {
        final Scorer scorer = (Scorer) context.get("scorer");
        assert scorer != null;
        return new DoubleDocValues(this) {
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    }
   
    DirectoryReader r = DirectoryReader.open(iw, true);
    DirectoryTaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoWriter);

    ValueSource valueSource = new LongFieldSource("price");
    FacetsCollector sfc = new FacetsCollector();
    newSearcher(r).search(new MatchAllDocsQuery(), sfc);
    Facets facets = new TaxonomyFacetSumValueSource(taxoReader, config, sfc, valueSource);
   
    assertEquals("dim=a path=[] value=10.0 childCount=2\n  1 (6.0)\n  0 (4.0)\n", facets.getTopChildren(10, "a").toString());
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Related Classes of org.apache.lucene.queries.function.ValueSource$ValueSourceComparator

  • org.apache.jena.query.spatial.SpatialIndexLucene
  • org.apache.lucene.benchmark.byTask.feeds.SpatialFileQueryMaker
  • org.apache.lucene.demo.facet.DistanceFacetsExample
  • org.apache.lucene.expressions.ExpressionValueSource
  • org.apache.lucene.expressions.TestExpressionValueSource
  • org.apache.lucene.facet.range.TestRangeFacetCounts
  • org.apache.lucene.facet.search.TestSumValueSourceFacetRequest
  • org.apache.lucene.facet.taxonomy.TestTaxonomyFacetSumValueSource
  • org.apache.lucene.search.grouping.AllGroupHeadsCollectorTest
  • org.apache.lucene.search.grouping.AllGroupsCollectorTest
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