An EventSubscriber knows himself what events he is interested in. If an EventSubscriber is added to an EventDispatcherInterface, the manager invokes {@link getSubscribedEvents} and registers the subscriber as a listener for all returned events.
@author Guilherme Blanco <guilhermeblanco@hotmail.com> @author Jonathan Wage <jonwage@gmail.com> @author Roman Borschel <roman@code-factory.org> @author Bernhard Schussek <bschussek@gmail.com>
@api
Expanded class hierarchy of EventSubscriberInterface
All classes that implement EventSubscriberInterface
interface EventSubscriberInterface {
/**
* Returns an array of event names this subscriber wants to listen to.
*
* The array keys are event names and the value can be:
*
* * The method name to call (priority defaults to 0)
* * An array composed of the method name to call and the priority
* * An array of arrays composed of the method names to call and respective
* priorities, or 0 if unset
*
* For instance:
*
* * array('eventName' => 'methodName')
* * array('eventName' => array('methodName', $priority))
* * array('eventName' => array(array('methodName1', $priority), array('methodName2'))
*
* @return array The event names to listen to
*
* @api
*/
public static function getSubscribedEvents();
}
Name | Modifiers | Type | Description | Overrides |
---|---|---|---|---|
EventSubscriberInterface:: |
public static | function | Returns an array of event names this subscriber wants to listen to. | 52 |