public function count($statusUri)
    {
        $persistence = $this->getPersistence();
        $key = $this->getStatusKey($statusUri);
        return intval($persistence->get($key));
    }
public function count($statusUri)
    {
        $persistence = $this->getPersistence();
        $key = $this->getStatusKey($statusUri);
        return intval($persistence->get($key));
    }
public function count ( $ statusUri ) { $ persistence = $ this -> getPersistence ( ) ; $ key = $ this -> getStatusKey ( $ statusUri ) ; return intval ( $ persistence -> get ( $ key ) ) ; }
Get number of delivery executions of given status.
@param $statusUri
@return integer
Get number of delivery executions of given status .