Package org.apache.lucene.search.suggest

Examples of org.apache.lucene.search.suggest.TermFreqArrayIterator

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    int options = 0;

    Analyzer a = new MockAnalyzer(random());
    AnalyzingSuggester suggester = new AnalyzingSuggester(a, a, options, 256, -1);
    suggester.build(new TermFreqArrayIterator(keys));
    // TODO: would be nice if "ab " would allow the test to
    // pass, and more generally if the analyzer can know
    // that the user's current query has ended at a word,
    // but, analyzers don't produce SEP tokens!
    List<LookupResult> r = suggester.lookup(_TestUtil.stringToCharSequence("ab c", random()), false, 2);
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        new TermFreq("wifi network is slow", 50),
        new TermFreq("wi fi network is fast", 10),
    };
    //AnalyzingSuggester suggester = new AnalyzingSuggester(analyzer, AnalyzingSuggester.EXACT_FIRST, 256, -1);
    AnalyzingSuggester suggester = new AnalyzingSuggester(analyzer);
    suggester.build(new TermFreqArrayIterator(keys));
    List<LookupResult> results = suggester.lookup("wifi network", false, 10);
    if (VERBOSE) {
      System.out.println("Results: " + results);
    }
    assertEquals(2, results.size());
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    TermFreq keys[] = new TermFreq[] {
        new TermFreq("ab xc", 50),
        new TermFreq("ba xd", 50),
    };
    AnalyzingSuggester suggester = new AnalyzingSuggester(analyzer);
    suggester.build(new TermFreqArrayIterator(keys));
    List<LookupResult> results = suggester.lookup("ab x", false, 1);
    assertTrue(results.size() == 1);
  }
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  public void testExactFirst() throws Exception {

    Analyzer a = getUnusualAnalyzer();
    AnalyzingSuggester suggester = new AnalyzingSuggester(a, a, AnalyzingSuggester.EXACT_FIRST | AnalyzingSuggester.PRESERVE_SEP, 256, -1);
    suggester.build(new TermFreqArrayIterator(new TermFreq[] {
          new TermFreq("x y", 1),
          new TermFreq("x y z", 3),
          new TermFreq("x", 2),
          new TermFreq("z z z", 20),
        }));
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  public void testNonExactFirst() throws Exception {

    Analyzer a = getUnusualAnalyzer();
    AnalyzingSuggester suggester = new AnalyzingSuggester(a, a, AnalyzingSuggester.PRESERVE_SEP, 256, -1);

    suggester.build(new TermFreqArrayIterator(new TermFreq[] {
          new TermFreq("x y", 1),
          new TermFreq("x y z", 3),
          new TermFreq("x", 2),
          new TermFreq("z z z", 20),
        }));
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    AnalyzingSuggester suggester = new AnalyzingSuggester(a, a,
                                                          preserveSep ? AnalyzingSuggester.PRESERVE_SEP : 0, 256, -1);
    if (doPayloads) {
      suggester.build(new TermFreqPayloadArrayIterator(shuffle(payloadKeys)));
    } else {
      suggester.build(new TermFreqArrayIterator(shuffle(keys)));
    }

    for (String prefix : allPrefixes) {

      if (VERBOSE) {
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  }

  public void testMaxSurfaceFormsPerAnalyzedForm() throws Exception {
    Analyzer a = new MockAnalyzer(random());
    AnalyzingSuggester suggester = new AnalyzingSuggester(a, a, 0, 2, -1);
    suggester.build(new TermFreqArrayIterator(shuffle(new TermFreq("a", 40),
        new TermFreq("a ", 50), new TermFreq(" a", 60))));

    List<LookupResult> results = suggester.lookup("a", false, 5);
    assertEquals(2, results.size());
    assertEquals(" a", results.get(0).key);
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  public void testQueueExhaustion() throws Exception {
    Analyzer a = new MockAnalyzer(random());
    AnalyzingSuggester suggester = new AnalyzingSuggester(a, a, AnalyzingSuggester.EXACT_FIRST, 256, -1);

    suggester.build(new TermFreqArrayIterator(new TermFreq[] {
          new TermFreq("a", 2),
          new TermFreq("a b c", 3),
          new TermFreq("a c a", 1),
          new TermFreq("a c b", 1),
        }));
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    Analyzer a = new MockAnalyzer(random());

    AnalyzingSuggester suggester = new AnalyzingSuggester(a, a, AnalyzingSuggester.EXACT_FIRST, 256, -1);

    suggester.build(new TermFreqArrayIterator(new TermFreq[] {
          new TermFreq("a", 5),
          new TermFreq("a b", 3),
          new TermFreq("a c", 4),
        }));
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      }
    };

    AnalyzingSuggester suggester = new AnalyzingSuggester(a, a, 0, 256, -1);

    suggester.build(new TermFreqArrayIterator(shuffle(
          new TermFreq("hambone", 6),
          new TermFreq("nellie", 5))));

    List<LookupResult> results = suggester.lookup("nellie", false, 2);
    assertEquals(2, results.size());
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Related Classes of org.apache.lucene.search.suggest.TermFreqArrayIterator

  • org.apache.lucene.search.suggest.analyzing.AnalyzingSuggesterTest
  • org.apache.lucene.search.suggest.analyzing.FuzzySuggesterTest
  • org.apache.lucene.search.suggest.fst.FSTLookupTest
  • org.apache.lucene.search.suggest.fst.WFSTCompletionTest
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