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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        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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      final IndexSearcher currentSearcher = getCurrentSearcher();
      final List<SearchHit<NewsReference>> resultList = new ArrayList<SearchHit<NewsReference>>();
      final Map<Long, Long> searchResultNewsIds = new HashMap<Long, Long>();


      /* Use custom hit collector for performance reasons */
      HitCollector collector = new HitCollector() {
        @Override
        public void collect(int doc, float score) {
          try {
            Document document = currentSearcher.doc(doc);

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        try {
          final List<INews> matchingNews = new ArrayList<INews>();


          /* Perform Query */
          Query query = ModelSearchQueries.createQuery(filter.getSearch());
          searcher[0].search(query, new HitCollector() {
            @Override
            public void collect(int doc, float score) {
              try {
                Document document = searcher[0].doc(doc);
                int index = Integer.valueOf(document.get(SearchDocument.ENTITY_ID_TEXT));

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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)

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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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            }
        }


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

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        private void calculateParent() throws IOException {
            if (hits == null) {
                hits = new BitSet(reader.maxDoc());


                final IOException[] ex = new IOException[1];
                contextScorer.score(new HitCollector() {
                    public void collect(int doc, float score) {
                        try {
                            doc = hResolver.getParent(doc);
                            if (doc != -1) {
                                hits.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 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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