protected ListRepresentation(IOidStrategy oidStrategy, IMenuFacade[] menus, HttpRequestMessage req, RestControlFlags flags)
     : base(oidStrategy, flags) {
     Value = menus.Where(m => m.MenuItems.Any()) .Select(c => CreateMenuLink(oidStrategy, req, c)).ToArray();
     SelfRelType = new ListRelType(RelValues.Self, SegmentValues.Services, new UriMtHelper(oidStrategy, req));
     SetLinks(req);
     SetExtensions();
     SetHeader(true);
 }