Examples of org.apache.lucene.search.BoostAttribute

org.apache.lucene.search.BoostAttribute
Add this {@link Attribute} to a {@link TermsEnum} returned by {@link MultiTermQuery#getTermsEnum(Terms,AttributeSource)}and update the boost on each returned term. This enables to control the boost factor for each matching term in {@link MultiTermQuery#SCORING_BOOLEAN_QUERY_REWRITE} or{@link TopTermsRewrite} mode.{@link FuzzyQuery} is using this to take the edit distance into account.
Please note: This attribute is intended to be added only by the TermsEnum to itself in its constructor and consumed by the {@link MultiTermQuery.RewriteMethod}. @lucene.internal

    final PriorityQueue<ScoreTerm> stQueue = new PriorityQueue<ScoreTerm>();
    
    BytesRef queryTerm = new BytesRef(term.text());
    BytesRef candidateTerm;
    ScoreTerm st = new ScoreTerm();
    BoostAttribute boostAtt =
      e.attributes().addAttribute(BoostAttribute.class);
    while ((candidateTerm = e.next()) != null) {
      final float boost = boostAtt.getBoost();
      // ignore uncompetitive hits
      if (stQueue.size() >= numSug && boost <= stQueue.peek().boost)
        continue;
      
      // ignore exact match of the same term

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    final PriorityQueue<ScoreTerm> stQueue = new PriorityQueue<ScoreTerm>();
    
    BytesRef queryTerm = new BytesRef(term.text());
    BytesRef candidateTerm;
    ScoreTerm st = new ScoreTerm();
    BoostAttribute boostAtt =
      e.attributes().addAttribute(BoostAttribute.class);
    while ((candidateTerm = e.next()) != null) {
      final float boost = boostAtt.getBoost();
      // ignore uncompetitive hits
      if (stQueue.size() >= numSug && boost <= stQueue.peek().boost)
        continue;
      
      // ignore exact match of the same term

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    final PriorityQueue<ScoreTerm> stQueue = new PriorityQueue<>();
    
    BytesRef queryTerm = new BytesRef(term.text());
    BytesRef candidateTerm;
    ScoreTerm st = new ScoreTerm();
    BoostAttribute boostAtt =
      e.attributes().addAttribute(BoostAttribute.class);
    while ((candidateTerm = e.next()) != null) {
      final float boost = boostAtt.getBoost();
      // ignore uncompetitive hits
      if (stQueue.size() >= numSug && boost <= stQueue.peek().boost)
        continue;
      
      // ignore exact match of the same term

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Related Classes of org.apache.lucene.search.BoostAttribute

org.apache.lucene.search.spell.DirectSpellChecker

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