docs: public void doDelete(@Param("nodeId") Long nodeId, @Param("pageIndex") int pageIndex,
                           @Param("searchKey") String searchKey, Navigator nav) throws WebxException {
  
          if (pipelineService.hasRelation(nodeId) || nodeService.findById(nodeId).getStatus().isStart()) {
              nav.redirectTo(WebConstant.ERROR_FORBIDDEN_Link);
              return;
          } else {
              nodeService.remove(nodeId);
          }
  
          nav.redirectToLocation("nodeList.htm?pageIndex=" + pageIndex + "&searchKey=" + urlEncode(searchKey));
      }