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<?PHP /** * example that shows how to change the class used for notifications * * You may change the notification class per dispatcher or globally for all * newly created dispatchers. * * @package Event_Dispatcher * @subpackage Examples * @author Stephan Schmidt <schst@php.net> */
/** * load Event_Dispatcher package */ require_once 'Event/Dispatcher.php';
/** * example sender * * @package Event_Dispatcher * @subpackage Examples * @author Stephan Schmidt <schst@php.net> */ class sender { var $_dispatcher = null; function sender(&$dispatcher) { $this->_dispatcher = &$dispatcher; } function foo() { $this->_dispatcher->post($this, 'onFoo', 'Some Info...'); } }
function receiver(&$notification) { echo 'received notification: '; echo get_class($notification); echo '<br />'; }
/** * custom notification class * * @package Event_Dispatcher * @subpackage Examples * @author Stephan Schmidt <schst@php.net> */ class MyNotification extends Event_Notification { }
$dispatcher = &Event_Dispatcher::getInstance(); $dispatcher->setNotificationClass('MyNotification'); $sender = &new sender($dispatcher);
$dispatcher->addObserver('receiver');
echo 'sender->foo()<br />'; $sender->foo();
Event_Dispatcher::setNotificationClass('MyNotification');
$dispatcher2 = &Event_Dispatcher::getInstance(); $sender2 = &new sender($dispatcher2);
$dispatcher2->addObserver('receiver');
echo '<br />sender2->foo()<br />'; $sender2->foo(); ?>
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