88dee399_ing_Hibernate___O_Reilly_Media__Purpose
[Method] or [Parameters] Criterion lhs, Criterion rhs [Purpose] 
Builds a compound Criterion that succeeds if either of its halves matches. See also disjunction⁠⁠(⁠ ⁠).
The Criteria API: Appendix B - Harnessing Hibernate - O'Reilly Media