/**
  * Delete a graph with its data.
  * @param string $graph : name of the graph
  * @return boolean : true if it did
  * @access public
  */
 public function delete($graph)
 {
     $client = new Curl_HTTP_Client();
     $sUri = $this->_endpoint . $graph;
     $response = $client->send_delete($sUri);
     $code = $client->get_http_response_code();
     if ($code == 200) {
         return true;
     } else {
         $this->errorLog("DELETE:<" . $graph . ">", $sUri, $code, $response);
         return false;
     }
 }