1 files changed, 5 insertions, 11 deletions
diff --git a/lib/plugins/action.php b/lib/plugins/action.php
index 23d94a509..496c56926 100644
--- a/lib/plugins/action.php
+++ b/lib/plugins/action.php
@@ -2,24 +2,18 @@
 /**
  * Action Plugin Prototype
  *
- * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
- * @author     Christopher Smith <chris@jalakai.co.uk>
- */
-// must be run within Dokuwiki
-if(!defined('DOKU_INC')) die();
-
-/**
  * All DokuWiki plugins to interfere with the event system
  * need to inherit from this class
+ *
+ * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
+ * @author     Christopher Smith <chris@jalakai.co.uk>
  */
-class DokuWiki_Action_Plugin extends DokuWiki_Plugin {
+abstract class DokuWiki_Action_Plugin extends DokuWiki_Plugin {
 
     /**
      * Registers a callback function for a given event
      *
      * @param Doku_Event_Handler $controller
      */
-    public function register(Doku_Event_Handler $controller) {
-        trigger_error('register() not implemented in '.get_class($this), E_USER_WARNING);
-    }
+    abstract public function register(Doku_Event_Handler $controller);
 }