public function load_from_domxml(DOMElement $xml)
 {
     $this->xmlroot = $xml;
     foreach ($xml->childNodes as $node) {
         if ($node->nodeType != XML_ELEMENT_NODE) {
             continue;
         }
         $interfaceString = $node->textContent;
         $interface = $this->parentCentralStore->findInterfaceOrCreateTmp($interfaceString);
         $this->add($interface);
     }
 }