mybatis generator and 和or条件

public Criteria andOrModel(String condition,String value) {
            addCriterion("("+condition+" = \"" + value + "\" or "+condition+" is null)");
            return (Criteria) this;
        }

ModelExample example = new ModelExample();
ModelExample.Criteria criterial = example.createCriteria();
criterial.andNameEqualTo("any").andOrModel("batch_no", "");