<?php
/**
* Part of the Joomla Framework Event Package
*
* @copyright Copyright (C) 2005 - 2021 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
namespace Joomla\Event;
/**
* Interface for events.
* An event has a name and its propagation can be stopped.
*
* @since 1.0
*/
interface EventInterface
{
/**
* Get an event argument value.
*
* @param string $name The argument name.
* @param mixed $default The default value if not found.
*
* @return mixed The argument value or the default value.
*
* @since 2.0.0
*/
public function getArgument($name, $default = null);
/**
* Get the event name.
*
* @return string The event name.
*
* @since 1.0
*/
public function getName();
/**
* Tell if the event propagation is stopped.
*
* @return boolean True if stopped, false otherwise.
*
* @since 1.0
*/
public function isStopped();
/**
* Stops the propagation of the event to further event listeners.
*
* @return void
*
* @since 2.0.0
*/
public function stopPropagation(): void;
}