<?php

/*
 * This file is part of SwiftMailer.
 * (c) 2004-2009 Chris Corbyn
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

/**
 * The minimum interface for an Event.
 * 
 * @package Swift
 * @subpackage Events
 * @author Chris Corbyn
 */
interface Swift_Events_Event
{
  
  /**
   * Get the source object of this event.
   * @return object
   */
  public function getSource();
  
  /**
   * Prevent this Event from bubbling any further up the stack.
   * @param boolean $cancel, optional
   */
  public function cancelBubble($cancel = true);
  
  /**
   * Returns true if this Event will not bubble any further up the stack.
   * @return boolean
   */
  public function bubbleCancelled();
  
}
