Examples of org.apache.lucene.index.TermEnum.skipTo()

org.apache.lucene.index.TermEnum.skipTo()
Skips terms to the first beyond the current whose value is greater or equal to target.
Returns true iff there is such an entry.
Behaves as if written:
```
 public boolean skipTo(Term target) { do { if (!next()) return false; } while (target > term()); return true; } 
```
Some implementations are considerably more efficient than that.

    TermEnum aprioriTermEnumSeeker = aprioriReader.terms();
    TermEnum testTermEnumSeeker = testReader.terms();


    while (aprioriTermEnum.next()) {
      if (aprioriTermEnumSeeker.skipTo(aprioriTermEnum.term())) {
        assertTrue(testTermEnumSeeker.skipTo(aprioriTermEnum.term()));
        assertEquals(aprioriTermEnumSeeker.term(), testTermEnumSeeker.term());
      } else {
        assertFalse(testTermEnumSeeker.skipTo(aprioriTermEnum.term()));
      }
    }

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    while (aprioriTermEnum.next()) {
      if (aprioriTermEnumSeeker.skipTo(aprioriTermEnum.term())) {
        assertTrue(testTermEnumSeeker.skipTo(aprioriTermEnum.term()));
        assertEquals(aprioriTermEnumSeeker.term(), testTermEnumSeeker.term());
      } else {
        assertFalse(testTermEnumSeeker.skipTo(aprioriTermEnum.term()));
      }
    }


    aprioriTermEnum.close();
    aprioriTermEnumSeeker.close();

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    aprioriTermEnum = aprioriReader.terms();
    aprioriTermEnum.next();
    Term nonExistingTerm = new Term(aprioriTermEnum.term().field(), "bzzzzoo993djdj380sdf");
    aprioriTermEnum.close();


    assertEquals(aprioriTermEnumSeeker.skipTo(nonExistingTerm), testTermEnumSeeker.skipTo(nonExistingTerm));
    assertEquals(aprioriTermEnumSeeker.term(), testTermEnumSeeker.term());


    aprioriTermEnumSeeker.close();
    testTermEnumSeeker.close();

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    TermEnum aprioriTermEnumSeeker = aprioriReader.terms();
    TermEnum testTermEnumSeeker = testReader.terms();


    while (aprioriTermEnum.next()) {
      if (aprioriTermEnumSeeker.skipTo(aprioriTermEnum.term())) {
        assertTrue(testTermEnumSeeker.skipTo(aprioriTermEnum.term()));
        assertEquals(aprioriTermEnumSeeker.term(), testTermEnumSeeker.term());
      } else {
        assertFalse(testTermEnumSeeker.skipTo(aprioriTermEnum.term()));
      }
    }

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    while (aprioriTermEnum.next()) {
      if (aprioriTermEnumSeeker.skipTo(aprioriTermEnum.term())) {
        assertTrue(testTermEnumSeeker.skipTo(aprioriTermEnum.term()));
        assertEquals(aprioriTermEnumSeeker.term(), testTermEnumSeeker.term());
      } else {
        assertFalse(testTermEnumSeeker.skipTo(aprioriTermEnum.term()));
      }
    }


    aprioriTermEnum.close();
    aprioriTermEnumSeeker.close();

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    aprioriTermEnum = aprioriReader.terms();
    aprioriTermEnum.next();
    Term nonExistingTerm = new Term(aprioriTermEnum.term().field(), "bzzzzoo993djdj380sdf");
    aprioriTermEnum.close();


    assertEquals(aprioriTermEnumSeeker.skipTo(nonExistingTerm), testTermEnumSeeker.skipTo(nonExistingTerm));
    assertEquals(aprioriTermEnumSeeker.term(), testTermEnumSeeker.term());


    aprioriTermEnumSeeker.close();
    testTermEnumSeeker.close();

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  public void termEnumTest(IndexReader r) throws Exception {
    TermEnum terms = r.terms();


    assertNull(terms.term());
    assertFalse(terms.next());
    assertFalse(terms.skipTo(new Term("foo", "bar")));


  }


}

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    TermEnum aprioriTermEnumSeeker = aprioriReader.terms();
    TermEnum testTermEnumSeeker = testReader.terms();


    while (aprioriTermEnum.next()) {
      if (aprioriTermEnumSeeker.skipTo(aprioriTermEnum.term())) {
        assertTrue(testTermEnumSeeker.skipTo(aprioriTermEnum.term()));
        assertEquals(aprioriTermEnumSeeker.term(), testTermEnumSeeker.term());
      } else {
        assertFalse(testTermEnumSeeker.skipTo(aprioriTermEnum.term()));
      }
    }

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    while (aprioriTermEnum.next()) {
      if (aprioriTermEnumSeeker.skipTo(aprioriTermEnum.term())) {
        assertTrue(testTermEnumSeeker.skipTo(aprioriTermEnum.term()));
        assertEquals(aprioriTermEnumSeeker.term(), testTermEnumSeeker.term());
      } else {
        assertFalse(testTermEnumSeeker.skipTo(aprioriTermEnum.term()));
      }
    }


    aprioriTermEnum.close();
    aprioriTermEnumSeeker.close();

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    aprioriTermEnum = aprioriReader.terms();
    aprioriTermEnum.next();
    Term nonExistingTerm = new Term(aprioriTermEnum.term().field(), "bzzzzoo993djdj380sdf");
    aprioriTermEnum.close();


    assertEquals(aprioriTermEnumSeeker.skipTo(nonExistingTerm), testTermEnumSeeker.skipTo(nonExistingTerm));
    assertEquals(aprioriTermEnumSeeker.term(), testTermEnumSeeker.term());


    aprioriTermEnumSeeker.close();
    testTermEnumSeeker.close();

View Full Code Here

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