Package javax.jcr.query.qom

Interface Ordering

  • All Known Implementing Classes:
    OrderingImpl
    public interface Ordering
    Determines the relative order of two node-tuples by evaluating operand for each.

    For a first node-tuple, nt1, for which operand evaluates to v1, and a second node-tuple, nt2, for which operand evaluates to v2:

    • If order is Ascending, then:
      • if either v1 is null, v2 is null, or both v1 and v2 are null, the relative order of nt1 and nt2 is implementation determined, otherwise
      • if v1 is a different property type than v2, the relative order of nt1 and nt2 is implementation determined, otherwise
      • if v1 is ordered before v2, then nt1 precedes nt2, otherwise
      • if v1 is ordered after v2, then nt2 precedes nt1, otherwise
      • the relative order of nt1 and nt2 is implementation determined and may be arbitrary.
    • Otherwise, if order is Descending, then:
      • if either v1 is null, v2 is null, or both v1 and v2 are null, the relative order of nt1 and nt2 is implementation determined, otherwise
      • if v1 is a different property type than v2, the relative order of nt1 and nt2 is implementation determined, otherwise
      • if v1 is ordered before v2, then nt2 precedes nt1, otherwise
      • if v1 is ordered after v2, then nt1 precedes nt2, otherwise
      • the relative order of nt1 and nt2 is implementation determined and may be arbitrary.
    Since:
    JCR 2.0