Package org.apache.lucene.search.spans

Examples of org.apache.lucene.search.spans.SpanQuery

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      assertEquals("<B>help</B> me [54-65]", match);
  }  
  public void testGetBestFragmentsFilteredQuery() throws Exception
  {
    RangeFilter rf=new RangeFilter("contents","john","john",true,true);
    SpanQuery clauses[]={
        new SpanTermQuery(new Term("contents","john")),
        new SpanTermQuery(new Term("contents","kennedy")),
        };
    SpanNearQuery snq=new SpanNearQuery(clauses,1,true);
    FilteredQuery fq=new FilteredQuery(snq,rf);
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        if (slop < 0)
            slop = 0;
        boolean inOrder = true;
        if (node.hasAttribute("ordered"))
            inOrder = node.getAttribute("ordered").equals("yes");
        SpanQuery query = null;
        if (hasElementContent(node)) {
            SpanQuery[] children = parseSpanChildren(field, node, analyzer);
            query = new SpanNearQuery(children, slop, inOrder);
        } else {
          String termStr = getTerm(field, getText(node), analyzer);
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  public String toString(String field) {
    StringBuilder buffer = new StringBuilder();
    buffer.append("payloadNear([");
    Iterator<SpanQuery> i = clauses.iterator();
    while (i.hasNext()) {
      SpanQuery clause = i.next();
      buffer.append(clause.toString(field));
      if (i.hasNext()) {
        buffer.append(", ");
      }
    }
    buffer.append("], ");
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    Set<Term> nonWeightedTerms = new HashSet<Term>();
    final boolean mustRewriteQuery = mustRewriteQuery(spanQuery);
    if (mustRewriteQuery) {
      for (final String field : fieldNames) {
        final SpanQuery rewrittenQuery = (SpanQuery) spanQuery.rewrite(getLeafContext().reader());
        queries.put(field, rewrittenQuery);
        rewrittenQuery.extractTerms(nonWeightedTerms);
      }
    } else {
      spanQuery.extractTerms(nonWeightedTerms);
    }

    List<PositionSpan> spanPositions = new ArrayList<PositionSpan>();

    for (final String field : fieldNames) {
      final SpanQuery q;
      if (mustRewriteQuery) {
        q = queries.get(field);
      } else {
        q = spanQuery;
      }
      AtomicReaderContext context = getLeafContext();
      Map<Term,TermContext> termContexts = new HashMap<Term,TermContext>();
      TreeSet<Term> extractedTerms = new TreeSet<Term>();
      q.extractTerms(extractedTerms);
      for (Term term : extractedTerms) {
        termContexts.put(term, TermContext.build(context, term, true));
      }
      Bits acceptDocs = context.reader().getLiveDocs();
      final Spans spans = q.getSpans(context, acceptDocs, termContexts);

      // collect span positions
      while (spans.next()) {
        spanPositions.add(new PositionSpan(spans.start(), spans.end() - 1));
      }
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  }

  // LUCENE-3831
  public void testNullPointerException() throws IOException {
    RegexpQuery regex = new RegexpQuery(new Term("field", "worl."));
    SpanQuery wrappedquery = new SpanMultiTermQueryWrapper<RegexpQuery>(regex);
       
    MemoryIndex mindex = new MemoryIndex(random().nextBoolean(),  random().nextInt(50) * 1024 * 1024);
    mindex.addField("field", new MockAnalyzer(random()).tokenStream("field", new StringReader("hello there")));

    // This throws an NPE
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  }
   
  // LUCENE-3831
  public void testPassesIfWrapped() throws IOException {
    RegexpQuery regex = new RegexpQuery(new Term("field", "worl."));
    SpanQuery wrappedquery = new SpanOrQuery(new SpanMultiTermQueryWrapper<RegexpQuery>(regex));

    MemoryIndex mindex = new MemoryIndex(random().nextBoolean(),  random().nextInt(50) * 1024 * 1024);
    mindex.addField("field", new MockAnalyzer(random()).tokenStream("field", new StringReader("hello there")));

    // This passes though
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    IndexReader indexReader = DirectoryReader.open(directory);
    IndexSearcher searcher = newSearcher(indexReader);

    DisjunctionMaxQuery query = new DisjunctionMaxQuery(1.0f);
    SpanQuery sq1 = new SpanTermQuery(new Term(FIELD, "clockwork"));
    SpanQuery sq2 = new SpanTermQuery(new Term(FIELD, "clckwork"));
    query.add(sq1);
    query.add(sq2);
    TopScoreDocCollector collector = TopScoreDocCollector.create(1000, true);
    searcher.search(query, collector);
    hits = collector.topDocs().scoreDocs.length;
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  public String toString(String field) {
    StringBuilder buffer = new StringBuilder();
    buffer.append("payloadNear([");
    Iterator<SpanQuery> i = clauses.iterator();
    while (i.hasNext()) {
      SpanQuery clause = i.next();
      buffer.append(clause.toString(field));
      if (i.hasNext()) {
        buffer.append(", ");
      }
    }
    buffer.append("], ");
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  @Override
  public SpanQuery getSpanQuery(Element e) throws ParserException {
    int end = DOMUtils.getAttribute(e, "end", 1);
    Element child = DOMUtils.getFirstChildElement(e);
    SpanQuery q = factory.getSpanQuery(child);

    SpanFirstQuery sfq = new SpanFirstQuery(q, end);

    sfq.setBoost(DOMUtils.getAttribute(e, "boost", 1.0f));
    return sfq;
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    includeElem = DOMUtils.getFirstChildOrFail(includeElem);

    Element excludeElem = DOMUtils.getChildByTagOrFail(e, "Exclude");
    excludeElem = DOMUtils.getFirstChildOrFail(excludeElem);

    SpanQuery include = factory.getSpanQuery(includeElem);
    SpanQuery exclude = factory.getSpanQuery(excludeElem);

    SpanNotQuery snq = new SpanNotQuery(include, exclude);

    snq.setBoost(DOMUtils.getAttribute(e, "boost", 1.0f));
    return snq;
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Related Classes of org.apache.lucene.search.spans.SpanQuery

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  • com.senseidb.search.query.SpanNotQueryConstructor
  • com.tamingtext.qa.PassageRankingComponent
  • org.apache.lucene.index.memory.MemoryIndexTest
  • org.apache.lucene.queryparser.complexPhrase.ComplexPhraseQueryParser$ComplexPhraseQuery
  • org.apache.lucene.queryParser.complexPhrase.ComplexPhraseQueryParser$ComplexPhraseQuery
  • org.apache.lucene.queryparser.flexible.spans.TestSpanQueryParserSimpleSample
  • org.apache.lucene.queryParser.spans.TestSpanQueryParserSimpleSample
  • org.apache.lucene.queryParser.surround.query.SpanNearClauseFactory
  • org.apache.lucene.queryparser.surround.query.SpanNearClauseFactory
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