code: public static XmlSqlInfoBuilder newInstace(BuildSource source) {
          XmlSqlInfoBuilder builder = new XmlSqlInfoBuilder();
          builder.init(source);
          return builder;
      }
docs: 获取XmlSqlInfoBuilder的实例，并初始化属性信息.
  @param source BuildSource实例
  @return XmlSqlInfoBuilder实例