Example usage for org.apache.lucene.search.spans SpanNearQuery SpanNearQuery

List of usage examples for org.apache.lucene.search.spans SpanNearQuery SpanNearQuery

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Introduction

In this page you can find the example usage for org.apache.lucene.search.spans SpanNearQuery SpanNearQuery.

Prototype

public SpanNearQuery(SpanQuery[] clausesIn, int slop, boolean inOrder)

Source Link

Document

Construct a SpanNearQuery.

Usage

From source file:aos.lucene.search.advanced.SpanQueryTest.java

License:Apache License

public void testSpanNearQuery() throws Exception {
      SpanQuery[] quick_brown_dog = new SpanQuery[] { quick, brown, dog };
      SpanNearQuery snq = new SpanNearQuery(quick_brown_dog, 0, true); //
      assertNoMatches(snq);/*  w  w  w  .j  a  v  a 2 s.c o  m*/
      dumpSpans(snq);

      snq = new SpanNearQuery(quick_brown_dog, 4, true); //
      assertNoMatches(snq);
      dumpSpans(snq);

      snq = new SpanNearQuery(quick_brown_dog, 5, true); //
      assertOnlyBrownFox(snq);
      dumpSpans(snq);

      // interesting - even a sloppy phrase query would require
      // more slop to match
      snq = new SpanNearQuery(new SpanQuery[] { lazy, fox }, 3, false);// #4
      assertOnlyBrownFox(snq);
      dumpSpans(snq);

      PhraseQuery pq = new PhraseQuery(); //
      pq.add(new Term("f", "lazy")); //
      pq.add(new Term("f", "fox")); //
      pq.setSlop(4); //
      assertNoMatches(pq);

      pq.setSlop(5); //
      assertOnlyBrownFox(pq); //
  }

From source file:aos.lucene.search.advanced.SpanQueryTest.java

License:Apache License

public void testSpanQueryFilter() throws Exception {
      SpanQuery[] quick_brown_dog = new SpanQuery[] { quick, brown, dog };
      SpanQuery snq = new SpanNearQuery(quick_brown_dog, 5, true);
      Filter filter = new SpanQueryFilter(snq);

      Query query = new MatchAllDocsQuery();
      TopDocs hits = searcher.search(query, filter, 10);
      assertEquals(1, hits.totalHits);/*from   ww w.  j  a  v  a2 s.co  m*/
      assertEquals("wrong doc", 0, hits.scoreDocs[0].doc);
  }

From source file:aos.lucene.search.advanced.SpanQueryTest.java

License:Apache License

public void testSpanNotQuery() throws Exception {
      SpanNearQuery quick_fox = new SpanNearQuery(new SpanQuery[] { quick, fox }, 1, true);
      assertBothFoxes(quick_fox);/*from w w  w .  java 2 s .  c om*/
      dumpSpans(quick_fox);

      SpanNotQuery quick_fox_dog = new SpanNotQuery(quick_fox, dog);
      assertBothFoxes(quick_fox_dog);
      dumpSpans(quick_fox_dog);

      SpanNotQuery no_quick_red_fox = new SpanNotQuery(quick_fox, red);
      assertOnlyBrownFox(no_quick_red_fox);
      dumpSpans(no_quick_red_fox);
  }

From source file:aos.lucene.search.advanced.SpanQueryTest.java

License:Apache License

public void testSpanOrQuery() throws Exception {
      SpanNearQuery quick_fox = new SpanNearQuery(new SpanQuery[] { quick, fox }, 1, true);

      SpanNearQuery lazy_dog = new SpanNearQuery(new SpanQuery[] { lazy, dog }, 0, true);

      SpanNearQuery sleepy_cat = new SpanNearQuery(new SpanQuery[] { sleepy, cat }, 0, true);

      SpanNearQuery qf_near_ld = new SpanNearQuery(new SpanQuery[] { quick_fox, lazy_dog }, 3, true);
      assertOnlyBrownFox(qf_near_ld);/*from  w ww .  j av  a 2 s  .  c o  m*/
      dumpSpans(qf_near_ld);

      SpanNearQuery qf_near_sc = new SpanNearQuery(new SpanQuery[] { quick_fox, sleepy_cat }, 3, true);
      dumpSpans(qf_near_sc);

      SpanOrQuery or = new SpanOrQuery(new SpanQuery[] { qf_near_ld, qf_near_sc });
      assertBothFoxes(or);
      dumpSpans(or);
  }

From source file:aos.lucene.search.advanced.SpanQueryTest.java

License:Apache License

public void testPlay() throws Exception {
      SpanOrQuery or = new SpanOrQuery(new SpanQuery[] { quick, fox });
      dumpSpans(or);//from  w  w  w  . j  av a  2s.com

      SpanNearQuery quick_fox = new SpanNearQuery(new SpanQuery[] { quick, fox }, 1, true);
      SpanFirstQuery sfq = new SpanFirstQuery(quick_fox, 4);
      dumpSpans(sfq);

      dumpSpans(new SpanTermQuery(new Term("f", "the")));

      SpanNearQuery quick_brown = new SpanNearQuery(new SpanQuery[] { quick, brown }, 0, false);
      dumpSpans(quick_brown);

  }

From source file:aos.lucene.search.ext.queryparser.CustomQueryParser.java

License:Apache License

/**
 * Replace PhraseQuery with SpanNearQuery to force in-order
 * phrase matching rather than reverse.//from  w w  w  .  j  a v a2  s  .  co  m
 */
protected Query getFieldQuery(String field, String queryText, int slop) throws ParseException {
    Query orig = super.getFieldQuery(field, queryText, slop); //

    if (!(orig instanceof PhraseQuery)) { //
        return orig; //
    } //

    PhraseQuery pq = (PhraseQuery) orig;
    Term[] terms = pq.getTerms(); //
    SpanTermQuery[] clauses = new SpanTermQuery[terms.length];
    for (int i = 0; i < terms.length; i++) {
        clauses[i] = new SpanTermQuery(terms[i]);
    }

    SpanNearQuery query = new SpanNearQuery( //
            clauses, slop, true); //

    return query;
}

From source file:com.ibm.watson.developer_cloud.professor_languo.pipeline.primary_search.SpanQueryGenerator.java

License:Open Source License

private Query createNgramQueryRecursive(Question question, Analyzer analyzer, int n) throws SearchException {
    List<String> tokens;
    StackExchangeQuestion queryQuestion = (StackExchangeQuestion) question;
    String title = queryQuestion.getTitleText();
    List<SpanTermQuery> termQueries = new ArrayList<SpanTermQuery>();
    BooleanQuery query = new BooleanQuery();

    try {/*from   w w w  .  ja  v  a2  s .  co m*/
        tokens = AnalyzerUtils.collectTokens(analyzer, title);
        // Loop through all tokens
        for (int idx = 0; idx < tokens.size() - (n - 1); idx++) {
            // For each field to search for
            for (int fieldIdx = 0; fieldIdx < fieldsToSearch.length; fieldIdx++) {
                // Make n-gram term query
                for (int t = 0; t < n; t++) {
                    SpanTermQuery stq = new SpanTermQuery(
                            new Term(fieldsToSearch[fieldIdx], tokens.get(idx + t).trim()));
                    stq.setBoost((float) (boostValues[fieldIdx] / 2.0));
                    termQueries.add(stq);
                }
                SpanNearQuery spanTitleQuery = new SpanNearQuery(
                        (SpanTermQuery[]) termQueries.toArray(new SpanTermQuery[termQueries.size()]),
                        fuzzFactor, inOrder);
                query.add(spanTitleQuery, Occur.SHOULD);
                termQueries.clear();
            } // Repeat for every field in fieldsToSearch
        } // Repeat for each token
    } catch (IOException e) {
        throw new SearchException(e);
    }

    return query;
}

From source file:com.leavesfly.lia.advsearching.SpanQueryTest.java

License:Apache License

public void testSpanNearQuery() throws Exception {
    SpanQuery[] quick_brown_dog = new SpanQuery[] { quick, brown, dog };
    SpanNearQuery snq = new SpanNearQuery(quick_brown_dog, 0, true); // #1
    assertNoMatches(snq);//www  . j  ava  2 s .  c  o  m
    dumpSpans(snq);

    snq = new SpanNearQuery(quick_brown_dog, 4, true); // #2
    assertNoMatches(snq);
    dumpSpans(snq);

    snq = new SpanNearQuery(quick_brown_dog, 5, true); // #3
    assertOnlyBrownFox(snq);
    dumpSpans(snq);

    // interesting - even a sloppy phrase query would require
    // more slop to match
    snq = new SpanNearQuery(new SpanQuery[] { lazy, fox }, 3, false);// #4
    assertOnlyBrownFox(snq);
    dumpSpans(snq);

    PhraseQuery pq = new PhraseQuery(); // #5
    pq.add(new Term("f", "lazy")); // #5
    pq.add(new Term("f", "fox")); // #5
    pq.setSlop(4); // #5
    assertNoMatches(pq);

    pq.setSlop(5); // #6
    assertOnlyBrownFox(pq); // #6
}

From source file:com.leavesfly.lia.advsearching.SpanQueryTest.java

License:Apache License

public void testSpanQueryFilter() throws Exception {
    SpanQuery[] quick_brown_dog = new SpanQuery[] { quick, brown, dog };
    SpanQuery snq = new SpanNearQuery(quick_brown_dog, 5, true);
    Filter filter = new SpanQueryFilter(snq);

    Query query = new MatchAllDocsQuery();
    TopDocs hits = searcher.search(query, filter, 10);
    assertEquals(1, hits.totalHits);//w  ww.  j  a va  2 s.co m
    assertEquals("wrong doc", 0, hits.scoreDocs[0].doc);
}

From source file:com.leavesfly.lia.advsearching.SpanQueryTest.java

License:Apache License

public void testSpanNotQuery() throws Exception {
    SpanNearQuery quick_fox = new SpanNearQuery(new SpanQuery[] { quick, fox }, 1, true);
    assertBothFoxes(quick_fox);//from   w  w  w  . j a v  a  2s .  c om
    dumpSpans(quick_fox);

    SpanNotQuery quick_fox_dog = new SpanNotQuery(quick_fox, dog);
    assertBothFoxes(quick_fox_dog);
    dumpSpans(quick_fox_dog);

    SpanNotQuery no_quick_red_fox = new SpanNotQuery(quick_fox, red);
    assertOnlyBrownFox(no_quick_red_fox);
    dumpSpans(no_quick_red_fox);
}