code: @InterfaceAudience.Private
      protected List<View> getViewsInGroup() {
          List<View> views = new ArrayList<View>();
          int slash = name.indexOf('/');
          if (slash > 0) {
              String prefix = name.substring(0, slash + 1);
              for (View view : database.getAllViews()) {
                  if (view.name.startsWith(prefix))
                      views.add(view);
              }
          } else
              views.add(this);
          return views;
      }
docs: Get all views that have the same prefix if specified.
  The prefix ends with slash '/' character.
  
  @return An array of all views with the same prefix.