How do you “OR” criteria together when using a criteria query with hibernate?

Question

I\'m trying to do a basic \"OR\" on three fields using a hibernate criteria query.

Example

class Whatever{
 string name;
 string address;
 string pho         


        

Answer 1

//Expression :  (c1 AND c2) OR (c3)      


 Criteria criteria = session.createCriteria(Employee.class);

  Criterion c1 = Restrictions.like("name", "%e%");
  Criterion c2 = Restrictions.ge("salary", 10000.00);
  Criterion c3 = Restrictions.like("name", "%YYY%");
  Criterion c4 = Restrictions.or(Restrictions.and(c1, c2), c3);
  criteria.add(c4);

  //Same thing can be done for (c1 OR c2) AND c3, or any complex expression.

Answer 2

If someone is using CriteriaQuery instead of Criteria, you can put all your expressions in a Predicate list and put a OR by predicates size like this:

List<Predicate> predicates = new ArrayList<>();
if (...) {
  predicates.add(...);
}

criteriaQuery.where(cb.or(predicates.toArray(new Predicate[predicates.size()])));