code: @Override
      public void actionCommit() {
  
          try {
              float age = (System.currentTimeMillis() - Long.parseLong(m_time)) / (60f * 60f * 1000f);
              OpenCms.fireCmsEvent(
                  new CmsEvent(
                      I_CmsEventListener.EVENT_CLEAR_CACHES,
                      Collections.<String, Object> singletonMap(CmsImageLoader.PARAM_CLEAR_IMAGES_CACHE, "" + age)));
          } catch (Exception e) {
              setCommitErrors(Collections.singletonList((Throwable)e));
          }
      }
docs: Commits the edited group to the db.<p>