Package org.apache.lucene.util.automaton

Examples of org.apache.lucene.util.automaton.CompiledAutomaton

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      }
      BytesRef term;
      int ord = 0;

      Automaton automaton = new RegExp(".*", RegExp.NONE).toAutomaton();   
      final TermsEnum termsEnum2 = terms.intersect(new CompiledAutomaton(automaton, false, false), null);

      while((term = termsEnum.next()) != null) {
        BytesRef term2 = termsEnum2.next();
        assertNotNull(term2);
        assertEquals(term, term2);
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    if (deep) {
      int numIntersections = atLeast(3);
      for (int i = 0; i < numIntersections; i++) {
        String re = AutomatonTestUtil.randomRegexp(random());
        CompiledAutomaton automaton = new CompiledAutomaton(new RegExp(re, RegExp.NONE).toAutomaton());
        if (automaton.type == CompiledAutomaton.AUTOMATON_TYPE.NORMAL) {
          // TODO: test start term too
          TermsEnum leftIntersection = leftTerms.intersect(automaton, null);
          TermsEnum rightIntersection = rightTerms.intersect(automaton, null);
          assertTermsEnum(leftIntersection, rightIntersection, rarely());
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      }
      BytesRef term;
      int ord = 0;

      Automaton automaton = new RegExp(".*", RegExp.NONE).toAutomaton();   
      final TermsEnum termsEnum2 = terms.intersect(new CompiledAutomaton(automaton, false, false), null);

      while((term = termsEnum.next()) != null) {
        BytesRef term2 = termsEnum2.next();
        assertNotNull(term2);
        assertEquals(term, term2);
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    if (deep) {
      int numIntersections = atLeast(3);
      for (int i = 0; i < numIntersections; i++) {
        String re = AutomatonTestUtil.randomRegexp(random());
        CompiledAutomaton automaton = new CompiledAutomaton(new RegExp(re, RegExp.NONE).toAutomaton());
        if (automaton.type == CompiledAutomaton.AUTOMATON_TYPE.NORMAL) {
          // TODO: test start term too
          TermsEnum leftIntersection = leftTerms.intersect(automaton, null);
          TermsEnum rightIntersection = rightTerms.intersect(automaton, null);
          assertTermsEnumEquals(info, leftReader, leftIntersection, rightIntersection, rarely());
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          System.out.println("TEST: reduce the automaton");
        }
        a.reduce();
      }

      final CompiledAutomaton c = new CompiledAutomaton(a, true, false);

      final BytesRef[] acceptTermsArray = new BytesRef[acceptTerms.size()];
      final Set<BytesRef> acceptTermsSet = new HashSet<>();
      int upto = 0;
      for(String s : acceptTerms) {
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    DirectoryReader r = w.getReader();
    w.close();
    AtomicReader sub = getOnlySegmentReader(r);
    Terms terms = sub.fields().terms("field");
    Automaton automaton = new RegExp(".*", RegExp.NONE).toAutomaton();   
    CompiledAutomaton ca = new CompiledAutomaton(automaton, false, false);   
    TermsEnum te = terms.intersect(ca, null);
    assertEquals("aaa", te.next().utf8ToString());
    assertEquals(0, te.docs(null, null, DocsEnum.FLAG_NONE).nextDoc());
    assertEquals("bbb", te.next().utf8ToString());
    assertEquals(1, te.docs(null, null, DocsEnum.FLAG_NONE).nextDoc());
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    w.close();
    AtomicReader sub = getOnlySegmentReader(r);
    Terms terms = sub.fields().terms("field");

    Automaton automaton = new RegExp(".*d", RegExp.NONE).toAutomaton();
    CompiledAutomaton ca = new CompiledAutomaton(automaton, false, false);   
    TermsEnum te;
   
    // should seek to startTerm
    te = terms.intersect(ca, new BytesRef("aad"));
    assertEquals("abd", te.next().utf8ToString());
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    w.close();
    AtomicReader sub = getOnlySegmentReader(r);
    Terms terms = sub.fields().terms("field");

    Automaton automaton = new RegExp(".*", RegExp.NONE).toAutomaton();  // accept ALL
    CompiledAutomaton ca = new CompiledAutomaton(automaton, false, false);   

    TermsEnum te = terms.intersect(ca, null);
    DocsEnum de;

    assertEquals("", te.next().utf8ToString());
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      }
      BytesRef term;
      int ord = 0;

      Automaton automaton = new RegExp(".*", RegExp.NONE).toAutomaton();   
      final TermsEnum termsEnum2 = terms.intersect(new CompiledAutomaton(automaton, false, false), null);

      while((term = termsEnum.next()) != null) {
        BytesRef term2 = termsEnum2.next();
        assertNotNull(term2);
        assertEquals(term, term2);
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    if (deep) {
      int numIntersections = atLeast(3);
      for (int i = 0; i < numIntersections; i++) {
        String re = AutomatonTestUtil.randomRegexp(random());
        CompiledAutomaton automaton = new CompiledAutomaton(new RegExp(re, RegExp.NONE).toAutomaton());
        if (automaton.type == CompiledAutomaton.AUTOMATON_TYPE.NORMAL) {
          // TODO: test start term too
          TermsEnum leftIntersection = leftTerms.intersect(automaton, null);
          TermsEnum rightIntersection = rightTerms.intersect(automaton, null);
          assertTermsEnumEquals(info, leftReader, leftIntersection, rightIntersection, rarely());
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Related Classes of org.apache.lucene.util.automaton.CompiledAutomaton

  • org.apache.jackrabbit.oak.plugins.index.lucene.LuceneIndex
  • org.apache.jackrabbit.oak.plugins.index.lucene.LucenePropertyIndex
  • org.apache.lucene.codecs.lucene41.TestBlockPostingsFormat3
  • org.apache.lucene.index.SingleTermsEnum
  • org.apache.lucene.index.TestDuelingCodecs
  • org.apache.lucene.index.TestTermsEnum
  • org.apache.lucene.search.AutomatonQuery
  • org.apache.lucene.search.FuzzyTermsEnum
  • org.apache.lucene.search.PrefixTermsEnum
  • org.apache.lucene.util.BytesRef
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