public void test_like_visit()
        {
            CriteriaVisitor visitor = new CriteriaVisitor();
            LikeCriteria criteria = new LikeCriteria("id", 2);

            string shard = criteria.GetShard(visitor);

            DebugHelper.WriteToConsole("shard = " + shard);
            Assert.AreEqual("id like '%2%'", shard);
        }
 public override string GetShard(LikeCriteria criteria)
 {
     return String.Format("{0} like '%{1}%'", criteria.Field, criteria.Value.ToString());
 }