code: protected function compile()
      {
          $objItemRenderer = new ItemList();
  
          $this->Template->searchable = !$this->metamodel_donotindex;
  
          $sorting   = $this->metamodel_sortby;
          $direction = $this->metamodel_sortby_direction;
          if ($this->metamodel_sort_override) {
              if (\Input::get('orderBy')) {
                  $sorting = \Input::get('orderBy');
              }
              if (\Input::get('orderDir')) {
                  $direction = \Input::get('orderDir');
              }
          }
  
          $objItemRenderer
              ->setServiceContainerFallback(
                  function () {
                      return $this->getServiceContainer();
                  }
              )
              ->setFactory(System::getContainer()->get('metamodels.factory'))
              ->setFilterFactory(System::getContainer()->get('metamodels.filter_setting_factory'))
              ->setRenderSettingFactory(System::getContainer()->get('metamodels.render_setting_factory'))
              ->setEventDispatcher(System::getContainer()->get('event_dispatcher'))
              ->setMetaModel($this->metamodel, $this->metamodel_rendersettings)
              ->setLimit($this->metamodel_use_limit, $this->metamodel_offset, $this->metamodel_limit)
              ->setPageBreak($this->perPage)
              ->setSorting($sorting, $direction)
              ->setFilterSettings($this->metamodel_filtering)
              ->setFilterParameters(
                  StringUtil::deserialize($this->metamodel_filterparams, true),
                  $this->getFilterParameters($objItemRenderer)
              )
              ->setMetaTags($this->metamodel_meta_title, $this->metamodel_meta_description);
  
          // Render items with encoded email strings as contao standard.
          $this->Template->items         =
              \StringUtil::encodeEmail($objItemRenderer->render($this->metamodel_noparsing, $this));
          $this->Template->numberOfItems = $objItemRenderer->getItems()->getCount();
          $this->Template->pagination    = $objItemRenderer->getPagination();
      }
docs: Compile the content element.
  
  @return void