code: public void loadDecorators(FacesContext context, Compiler compiler)
      {
          String param = WebConfigParamUtils.getStringInitParameter(context.getExternalContext(), PARAMS_DECORATORS);
          if (param != null)
          {
              for (String decorator : param.split(";"))
              {
                  try
                  {
                      compiler.addTagDecorator((TagDecorator) ReflectionUtil.forName(decorator).newInstance());
                      if (log.isLoggable(Level.FINE))
                      {
                          log.fine("Successfully loaded decorator: " + decorator);
                      }
                  }
                  catch (Exception e)
                  {
                      log.log(Level.SEVERE, "Error Loading decorator: " + decorator, e);
                  }
              }
          }
      }
docs: Load the various decorators for Facelets.
  
  @param context
  the current FacesContext
  @param compiler
  the page compiler