public function load($objectId)
    {
        if (!empty($objectId)) {
            $blResult = is_array($objectId)? $this->_loadByArray($objectId) : $this->_loadById($objectId);
            if ($blResult === false) {
                $sClass = get_class($this->getObject());
                throw new Exception("Failed to load $sClass with id $objectId");
            }
        }
    }