Examples of org.apache.lucene.search.ConstantScoreQuery$ConstantBulkScorer

org.apache.lucene.search.ConstantScoreQuery
We return this as our {@link BulkScorer} so that if the CSQwraps a query with its own optimized top-level scorer (e.g. BooleanScorer) we can use that top-level scorer.

          Math.min(BooleanQuery.getMaxClauseCount(), terms.size()));
      BooleanQuery bq = new BooleanQuery();
      for (int j = 0; j < numTerms; j++) {
        bq.add(new BooleanClause(new TermQuery(terms.get(j)), Occur.SHOULD));
      }
      TopDocs queryResult = searcher.search(new ConstantScoreQuery(bq), reader.maxDoc());
      
      MatchAllDocsQuery matchAll = new MatchAllDocsQuery();
      final TermsFilter filter = termsFilter(singleField, terms.subList(0, numTerms));;
      TopDocs filterResult = searcher.search(matchAll, filter, reader.maxDoc());
      assertEquals(filterResult.totalHits, queryResult.totalHits);

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    for (int i = 0; i < numChecks; i++) {
      String start = _TestUtil.randomSimpleString(random());
      String end = _TestUtil.randomSimpleString(random());
      BytesRef lowerVal = new BytesRef(collator.getCollationKey(start).toByteArray());
      BytesRef upperVal = new BytesRef(collator.getCollationKey(end).toByteArray());
      Query query = new ConstantScoreQuery(FieldCacheRangeFilter.newBytesRefRange("collated", lowerVal, upperVal, true, true));
      doTestRanges(is, start, end, query, collator);
    }
    
    ir.close();
    dir.close();

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      Filter filter = strategy.makeFilter(args);
      if (filter instanceof QueryWrapperFilter) {
        return ((QueryWrapperFilter)filter).getQuery();
      } else {
        return new ConstantScoreQuery(filter);
      }
    }
  }

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  @Override
  public Query rewrite(IndexReader reader) throws IOException {
    // TODO: if number of terms are low enough, rewrite to a BooleanQuery
    // for potentially faster execution.
    // TODO: cache the bitset somewhere instead of regenerating it
    Query q = new ConstantScoreQuery(new PrefixFilter(prefix));
    q.setBoost(getBoost());
    return q;
  }

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    // TODO: we should use FilteredQuery?


    // So scores of the drill-down query don't have an
    // effect:
    final ConstantScoreQuery drillDownQuery = new ConstantScoreQuery(subQuery);
    drillDownQuery.setBoost(0.0f);


    query.add(drillDownQuery, Occur.MUST);


    drillDownDims.put(dim, drillDownDims.size());
  }

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                                               @Override
                                               public void set(Weight w) {
                                                 collector.setWeight(w, -1);
                                               }
                                             });
    Query constantScoreSubQuery = new ConstantScoreQuery(wrappedSubQuery);


    // Don't impact score of original query:
    constantScoreSubQuery.setBoost(0.0f);


    topQuery.add(constantScoreSubQuery, BooleanClause.Occur.MUST);


    // Unfortunately this sub-BooleanQuery
    // will never get BS1 because today BS1 only works

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    assertCollectionQueries( flatQueries, tq( boost, "A" ) );
  }
  
  public void testFlattenConstantScoreQuery() throws Exception {
    initBoost();
    Query query = new ConstantScoreQuery(pqF( "A" ));
    query.setBoost(boost);
    FieldQuery fq = new FieldQuery( query, true, true );
    Set<Query> flatQueries = new HashSet<Query>();
    fq.flatten( query, reader, flatQueries );
    assertCollectionQueries( flatQueries, tq( boost, "A" ) );
  }

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    DirectoryTaxonomyReader taxo = new DirectoryTaxonomyReader(taxoDir);
    
    FacetSearchParams fsp = new FacetSearchParams(new SumScoreFacetRequest(new CategoryPath("a"), 10));
    FacetsCollector fc = FacetsCollector.create(fsp, r, taxo);
    TopScoreDocCollector topDocs = TopScoreDocCollector.create(10, false);
    ConstantScoreQuery csq = new ConstantScoreQuery(new MatchAllDocsQuery());
    csq.setBoost(2.0f);
    
    newSearcher(r).search(csq, MultiCollector.wrap(fc, topDocs));
    
    List<FacetResult> res = fc.getFacetResults();
    float value = (float) res.get(0).getFacetResultNode().value;

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    finalQuery.setBoost( boost * finalQuery.getBoost() );
    if ( filter != null ) {
      finalQuery = new FilteredQuery(finalQuery, filter);
    }
    if ( constantScore ) {
      finalQuery = new ConstantScoreQuery( new QueryWrapperFilter( finalQuery ) );
    }
    return finalQuery;
  }

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          Math.min(BooleanQuery.getMaxClauseCount(), terms.size()));
      BooleanQuery bq = new BooleanQuery();
      for (int j = 0; j < numTerms; j++) {
        bq.add(new BooleanClause(new TermQuery(terms.get(j)), Occur.SHOULD));
      }
      TopDocs queryResult = searcher.search(new ConstantScoreQuery(bq), reader.maxDoc());
      
      MatchAllDocsQuery matchAll = new MatchAllDocsQuery();
      final TermsFilter filter = termsFilter(singleField, terms.subList(0, numTerms));;
      TopDocs filterResult = searcher.search(matchAll, filter, reader.maxDoc());
      assertEquals(filterResult.totalHits, queryResult.totalHits);

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