code: public String getViewsString() {
          if (views == null || views.isEmpty()) return "";
          
          char delim = ',';
          // Build string connected with delimiter, quoting as needed
          StringBuilder buf = new StringBuilder();
          for (String value : views)
              buf.append(delim).append(value);
          return buf.substring(1);
      }
docs: Used for generating the config UI.