Examples of dovetaildb.querynode.QueryNode.specialize()

dovetaildb.querynode.QueryNode.specialize()
@param range Must be a range that's no wider than the range covered by this QueryNode @return A new, independent QueryNode (this QueryNode may be partially or fully rewound. it is not guaranteed to be correctly reporting all terms until you've caught back up to where you started) or null (if there are no items exist matching this range) or this (if the new range does not permit an optimized query structure) If this is returned, the QueryNode's range is not narrowed

    assertTrue(s.next());
    assertFalse(s.next());
    
    allTerms = index.getRange(new Range(ArrayBytes.EMPTY_BYTES, null, null, true, true), revNum);
    Range r = new Range(t1, null, null, true, true);
    s = allTerms.specialize(r);
    assertNotNull(s);


    r = new Range(t3, t3, t3, true, true);
    s = allTerms.specialize(r);
    // could be null (no results expected)

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    Range r = new Range(t1, null, null, true, true);
    s = allTerms.specialize(r);
    assertNotNull(s);


    r = new Range(t3, t3, t3, true, true);
    s = allTerms.specialize(r);
    // could be null (no results expected)
    if (s != null) { // if not null, make sure no results match
      do {
        assertFalse(r.matches(s.term()));
      } while(s.nextTerm() != NextStatus.AT_END);

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