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<?php
 /*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
 
 namespace Symfony\Component\EventDispatcher;
 
 /**
 * 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 <[email protected]>
 * @author Jonathan Wage <[email protected]>
 * @author Roman Borschel <[email protected]>
 * @author Bernhard Schussek <[email protected]>
 */
 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
 */
 public static function getSubscribedEvents();
 }
 
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