@Nonnull
  @ReturnsMutableCopy
  public static ICommonsList <IMetaElement> getAllRegisteredMetaElementsForThisRequest ()
  {
    final MetaElementList aSet = _getPerRequestSet (false);
    return aSet == null ? new CommonsArrayList <> () : aSet.getAllMetaElements ();
  }
@ Nonnull @ ReturnsMutableCopy public static ICommonsList < IMetaElement > getAllRegisteredMetaElementsForThisRequest ( ) { final MetaElementList aSet = _getPerRequestSet ( false ) ; return aSet == null ? new CommonsArrayList < > ( ) : aSet . getAllMetaElements ( ) ; }
@return A non-<code>null</code> set with all meta elements to be included
in this request.