return true;
} else if (parentElement instanceof CPResources) {
// parent is <resources> !!see the "s" at the end ;)
if (newElement instanceof CPResource) {
CPResources resources = (CPResources) parentElement;
resources.addResource((CPResource) newElement);
return true;
} else {
throw new OLATRuntimeException(CPOrganizations.class, "you can only add <resource>elements to the <resources> element",
new Exception());
}