code: private List getModes() {
  
          ArrayList ret = new ArrayList();
  
          ret.add(
              new CmsSelectWidgetOption(
                  MODE_VARIATIONS,
                  getMode().equals(MODE_VARIATIONS),
                  key(Messages.GUI_FLEXCACHE_CLEAN_MODE_VARIATIONS_0)));
          ret.add(
              new CmsSelectWidgetOption(
                  MODE_ALL,
                  getMode().equals(MODE_ALL),
                  key(Messages.GUI_FLEXCACHE_CLEAN_MODE_ALL_0)));
  
          return ret;
      }
docs: Returns a list with the possible modes for the clean action.<p>
  
  @return a list with the possible modes for the clean action