1: <?php
 2: 
 3: namespace RedBeanPHP;
 4: 
 5: /**
 6:  * Observer.
 7:  *
 8:  * Interface for Observer object. Implementation of the
 9:  * observer pattern.
10:  *
11:  * @file    RedBeanPHP/Observer.php
12:  * @author  Gabor de Mooij and the RedBeanPHP community
13:  * @license BSD/GPLv2
14:  * @desc    Part of the observer pattern in RedBean
15:  *
16:  * @copyright
17:  * copyright (c) G.J.G.T. (Gabor) de Mooij and the RedBeanPHP Community.
18:  * This source file is subject to the BSD/GPLv2 License that is bundled
19:  * with this source code in the file license.txt.
20:  */
21: interface Observer
22: {
23:     /**
24:      * An observer object needs to be capable of receiving
25:      * notifications. Therefore the observer needs to implement the
26:      * onEvent method with two parameters: the event identifier specifying the
27:      * current event and a message object (in RedBeanPHP this can also be a bean).
28:      *
29:      * @param string $eventname event identifier
30:      * @param mixed  $bean      a message sent along with the notification
31:      *
32:      * @return void
33:      */
34:     public function onEvent( $eventname, $bean );
35: }
36: