public function __construct(Connection $conn, DefinitionStorage $storage, $executionId = null)
 {
     $this->conn = $conn;
     $this->definitionStorage = $storage;
     $this->options = $storage->getOptions();
     if ($executionId !== null) {
         $this->loadExecution($executionId);
     }
 }
 public function save(\ezcWorkflow $workflow)
 {
     $this->definitionStorage->save($workflow);
 }