code: @Override
      public String getContainerClientId(FacesContext ctx)
      {
          if (isPrependId())
          {
              return super.getContainerClientId(ctx);
          }
          UIComponent parentNamingContainer = _ComponentUtils.findParentNamingContainer(this, false);
          if (parentNamingContainer != null)
          {
              return parentNamingContainer.getContainerClientId(ctx);
          }
          return null;
      }
docs: ------------------ GENERATED CODE END ---------------------------------------