Index: branches/5.2.x/core/kernel/constants.php
===================================================================
diff -u -N -r14856 -r14868
--- branches/5.2.x/core/kernel/constants.php	(.../constants.php)	(revision 14856)
+++ branches/5.2.x/core/kernel/constants.php	(.../constants.php)	(revision 14868)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: constants.php 14856 2011-12-08 17:01:53Z alex $
+* @version	$Id: constants.php 14868 2011-12-15 14:40:59Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -183,4 +183,13 @@
 	class PromoBlockType {
 		const INTERNAL = 1;
 		const EXTERNAL = 2;
+	}
+
+	class StorageEngine {
+		const HASH = 1;
+		const TIMESTAMP = 2;
+
+		const PS_DATE_TIME = 'DATE-TIME';
+		const PS_PREFIX = 'PREFIX';
+		const PS_USER = 'USER';
 	}
\ No newline at end of file