Examples of org.apache.lucene.search.HitCollector

org.apache.lucene.search.HitCollector
Lower-level search API. @see Searcher#search(Query,HitCollector) @version $Id: HitCollector.java,v 1.4 2003/10/03 03:04:43 ehatcher Exp $

      throw new IllegalArgumentException("query must not be null");
    
    Searcher searcher = createSearcher();
    try {
      final float[] scores = new float[1]; // inits to 0.0f (no match)
      searcher.search(query, new HitCollector() {
        public void collect(int doc, float score) {
          scores[0] = score;
        }
      });
      float score = scores[0];

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        searcher = new IndexSearcher((Directory)index);
      else 
        searcher = ((MemoryIndex) index).createSearcher();


      final float[] scores = new float[1]; // inits to 0.0f
      searcher.search(query, new HitCollector() {
        public void collect(int doc, float score) {
          scores[0] = score;
        }
      });
      float score = scores[0];

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        }


        private void calculateChildren() throws IOException {
            if (uuids == null) {
                uuids = new ArrayList();
                contextScorer.score(new HitCollector() {
                    public void collect(int doc, float score) {
                        hits.set(doc);
                    }
                });


                // collect nameTest hits
                final BitSet nameTestHits = new BitSet();
                if (nameTestScorer != null) {
                    nameTestScorer.score(new HitCollector() {
                        public void collect(int doc, float score) {
                            nameTestHits.set(doc);
                        }
                    });
                }

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        }


        private void calculateChildren() throws IOException {
            if (uuids == null) {
                uuids = new ArrayList();
                contextScorer.score(new HitCollector() {
                    public void collect(int doc, float score) {
                        hits.set(doc);
                    }
                });


                // collect nameTest hits
                final BitSet nameTestHits = new BitSet();
                if (nameTestScorer != null) {
                    nameTestScorer.score(new HitCollector() {
                        public void collect(int doc, float score) {
                            nameTestHits.set(doc);
                        }
                    });
                }

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        }


        private void calculateSubHits() throws IOException {
            if (!subHitsCalculated) {


                contextScorer.score(new HitCollector() {
                    public void collect(int doc, float score) {
                        contextHits.set(doc);
                    }
                }); // find all


                if (contextHits.isEmpty()) {
                    // no need to execute sub scorer, context is empty
                } else {
                    subScorer.score(new HitCollector() {
                        public void collect(int doc, float score) {
                            subHits.set(doc);
                            if (score != DEFAULT_SCORE.floatValue()) {
                                scores.put(new Integer(doc), new Float(score));
                            }

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        try {
            IndexSearcher searcher = new IndexSearcher(reader);
            try {
                Query q = new TermQuery(new Term(
                        FieldNames.WEAK_REFS, id.toString()));
                searcher.search(q, new HitCollector() {
                    public void collect(int doc, float score) {
                        docs.add(doc);
                    }
                });
            } finally {

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        try {
            IndexSearcher searcher = new IndexSearcher(reader);
            try {
                Query q = new TermQuery(new Term(
                        FieldNames.WEAK_REFS, id.toString()));
                searcher.search(q, new HitCollector() {
                    public void collect(int doc, float score) {
                        docs.add(doc);
                    }
                });
            } finally {

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        }


        private void collectContextHits() throws IOException {
            if (!contextHitsCalculated) {
                long time = System.currentTimeMillis();
                contextScorer.score(new HitCollector() {
                    public void collect(int doc, float score) {
                        contextHits.set(doc);
                    }
                }); // find all
                contextHitsCalculated = true;

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                final ChildrenCalculator[] calc = new ChildrenCalculator[1];
                if (nameTestScorer == null) {
                    // always use simple in that case
                    calc[0] = new SimpleChildrenCalculator(reader, hResolver);
                    contextScorer.score(new HitCollector() {
                        public void collect(int doc, float score) {
                            calc[0].collectContextHit(doc);
                        }
                    });
                } else {
                    // start simple but switch once threshold is reached
                    calc[0] = new SimpleChildrenCalculator(reader, hResolver);
                    contextScorer.score(new HitCollector() {


                        private List docIds = new ArrayList();


                        public void collect(int doc, float score) {
                            calc[0].collectContextHit(doc);

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        searcher = new IndexSearcher((Directory)index);
      else 
        searcher = ((MemoryIndex) index).createSearcher();


      final float[] scores = new float[1]; // inits to 0.0f
      searcher.search(query, new HitCollector() {
        public void collect(int doc, float score) {
          scores[0] = score;
        }
      });
      float score = scores[0];

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