Jackalope\Transport\WritingInterface::registerNamespace PHP Метод

    public function registerNamespace($prefix, $uri);

 /**
  * {@inheritDoc}
  *
  * @api
  */
 public function registerNamespace($prefix, $uri)
 {
     if (!$this->transport instanceof WritingInterface) {
         throw new UnsupportedRepositoryOperationException('Transport does not support writing');
     }
     // prevent default namespace prefixes to be overridden.
     $this->checkPrefix($prefix);
     // prevent default namespace uris to be overridden
     if (false !== array_search($uri, $this->defaultNamespaces)) {
         throw new NamespaceException("Can not change default namespace {$prefix} = {$uri}");
     }
     $this->lazyLoadNamespaces();
     //first try putting the stuff in backend, and only afterwards update local info
     // this has no impact on running sessions, go directly to storage
     $this->transport->registerNamespace($prefix, $uri);
     // update local info
     if (false !== ($oldpref = array_search($uri, $this->userNamespaces))) {
         // the backend takes care of storing this, but we have to update frontend info
         unset($this->userNamespaces[$oldpref]);
     }
     $this->userNamespaces[$prefix] = $uri;
 }