1: <?php
 2: /**
 3:  * Kronolith_Storage defines an API for storing free/busy information.
 4:  *
 5:  * @author  Mike Cochrane <mike@graftonhall.co.nz>
 6:  * @package Kronolith
 7:  */
 8: abstract class Kronolith_Storage
 9: {
10:     /**
11:      * String containing the current username.
12:      *
13:      * @var string
14:      */
15:     protected $_user = '';
16: 
17:     /**
18:      * Stub to initiate a driver.
19:      * @throws Kronolith_Exception
20:      */
21:     function initialize()
22:     {
23:         return true;
24:     }
25: 
26:     /**
27:      * Stub to be overridden in the child class.
28:      */
29:     abstract public function search($email, $private_only = false);
30: 
31:     /**
32:      * Stub to be overridden in the child class.
33:      */
34:     abstract public function store($email, $vfb, $public = false);
35: }
36: