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

org.apache.lucene.search.spans.SpanQuery
Base class for span-based queries.

    TestHighlightRunner helper = new TestHighlightRunner() {


      @Override
      public void run() throws Exception {
        numHighlights = 0;
        SpanQuery clauses[] = { new SpanTermQuery(new Term("contents", "john")),
            new SpanTermQuery(new Term("contents", "kennedy")), };


        SpanNearQuery snq = new SpanNearQuery(clauses, 1, true);
        doSearching(snq);
        doStandardHighlights(analyzer, searcher, hits, query, HighlighterTest.this);

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      @Override
      public void run() throws Exception {
        numHighlights = 0;
        TermRangeFilter rf = new TermRangeFilter("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);


        doSearching(fq);

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  public SpanQuery makeSpanNearClause() {
    SpanQuery [] spanQueries = new SpanQuery[size()];
    Iterator<SpanQuery> sqi = weightBySpanQuery.keySet().iterator();
    int i = 0;
    while (sqi.hasNext()) {
      SpanQuery sq = sqi.next();
      sq.setBoost(weightBySpanQuery.get(sq).floatValue());
      spanQueries[i++] = sq;
    }
    
    if (spanQueries.length == 1)
      return spanQueries[0];

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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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  }
  
  private PayloadNearQuery newPhraseQuery (String fieldName, String phrase, boolean inOrder) {
    int n;
    String[] words = phrase.split("[\\s]+");
    SpanQuery clauses[] = new SpanQuery[words.length];
    for (int i=0;i<clauses.length;i++) {
      clauses[i] = new PayloadTermQuery(new Term(fieldName, words[i]), new AveragePayloadFunction());  
    } 
    return new PayloadNearQuery(clauses, 0, inOrder);
  }

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    */
  }


  private SpanNearQuery spanNearQuery(String fieldName, String words) {
    String[] wordList = words.split("[\\s]+");
    SpanQuery clauses[] = new SpanQuery[wordList.length];
    for (int i=0;i<clauses.length;i++) {
      clauses[i] = new PayloadTermQuery(new Term(fieldName, wordList[i]), new AveragePayloadFunction());  
    } 
    return new SpanNearQuery(clauses, 10000, false);
  }

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    PayloadNearQuery query;
    TopDocs hits;


    // combine ordered and unordered spans with some nesting to make sure all payloads are counted


    SpanQuery q1 = newPhraseQuery("field", "nine hundred", true);
    SpanQuery q2 = newPhraseQuery("field", "ninety nine", true);
    SpanQuery q3 = newPhraseQuery("field", "nine ninety", false);
    SpanQuery q4 = newPhraseQuery("field", "hundred nine", false);
    SpanQuery[]clauses = new SpanQuery[] {new PayloadNearQuery(new SpanQuery[] {q1,q2}, 0, true), new PayloadNearQuery(new SpanQuery[] {q3,q4}, 0, false)};
    query = new PayloadNearQuery(clauses, 0, false);
    hits = searcher.search(query, null, 100);
    assertTrue("hits is null and it shouldn't be", hits != null);
    // should be only 1 hit - doc 999

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    // create a instance off the Builder
    SpansQueryTreeBuilder spansQueryTreeBuilder = new SpansQueryTreeBuilder();


    // convert QueryNode tree to span query Objects
    SpanQuery spanquery = spansQueryTreeBuilder.build(queryTree);


    assertTrue(spanquery instanceof SpanTermQuery);
    assertEquals(spanquery.toString(), "index:text");


  }

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    TestHighlightRunner helper = new TestHighlightRunner() {


      @Override
      public void run() throws Exception {
        numHighlights = 0;
        SpanQuery clauses[] = { new SpanTermQuery(new Term("contents", "john")),
            new SpanTermQuery(new Term("contents", "kennedy")), };


        SpanNearQuery snq = new SpanNearQuery(clauses, 1, true);
        doSearching(snq);
        doStandardHighlights(analyzer, searcher, hits, query, HighlighterTest.this);

View Full Code Here


      @Override
      public void run() throws Exception {
        numHighlights = 0;
        TermRangeFilter rf = new TermRangeFilter("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);


        doSearching(fq);

View Full Code Here

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