*
* @author Roland Haeder <webmaster@ship-simu.org>
* @version 0.0.0
- * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009, 2010 Core Developer Team
+ * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2012 Core Developer Team
* @license GNU GPL 3.0 or any newer version
* @link http://www.ship-simu.org
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-class BaseFilterDecorator extends BaseFrameworkSystem implements Filterable {
+abstract class BaseFilterDecorator extends BaseFrameworkSystem implements Filterable {
/**
* The decorated filter instance
*/
- private $filterInstance = null;
+ private $filterInstance = NULL;
/**
* Protected constructor