code: public WhereCondition Val(Object val) {
  
          if ("?".equals(val)) {
              // question mark means WILDCARD for prepared statement
              mSgSQL.append(" ?");
          }
          else {
              mSgSQL.append("'");
              mSgSQL.append(val.toString());
              mSgSQL.append("'");
          }
  
          checkTokenOrderIsCorrect(ESqlToken.VALUE);
          return WhereCondition.this;
      }
docs: Add value of column into WHERE clause
  
  @param val
  @return