example.createCriteria().andLastnameLike("RU%");
example.setOrderByClause("ID1, ID2");
List<MyObject> answer = mapper.selectByExample(example);
assertEquals(0, answer.size());
example.clear();
example.createCriteria().andLastnameLikeInsensitive("RU%");
answer = mapper.selectByExample(example);
assertEquals(3, answer.size());
MyObject returnedRecord = answer.get(0);