final public function existsInDb() {

		$class = get_called_class();
		$conds = implode(' AND ', $this->getSqlKeyConditions());

		$this->db->setQuery('SELECT COUNT(1) FROM `' . $class::TABLE_NAME . '` WHERE ' . $conds);
		
		return (bool)$this->db->loadCount($this->getId());
	
	}