<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Controller
 * @subpackage Zend_Controller_Action
 * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: Interface.php 16541 2009-07-07 06:59:03Z bkarwin $
 */

/**
 * @category   Zend
 * @package    Zend_Controller
 * @subpackage Zend_Controller_Action
 * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
interface Zend_Controller_Action_Interface
{
    /**
     * Class constructor
     *
     * The request and response objects should be registered with the
     * controller, as should be any additional optional arguments; these will be
     * available via {@link getRequest()}, {@link getResponse()}, and
     * {@link getInvokeArgs()}, respectively.
     *
     * When overriding the constructor, please consider this usage as a best
     * practice and ensure that each is registered appropriately; the easiest
     * way to do so is to simply call parent::__construct($request, $response,
     * $invokeArgs).
     *
     * After the request, response, and invokeArgs are set, the
     * {@link $_helper helper broker} is initialized.
     *
     * Finally, {@link init()} is called as the final action of
     * instantiation, and may be safely overridden to perform initialization
     * tasks; as a general rule, override {@link init()} instead of the
     * constructor to customize an action controller's instantiation.
     *
     * @param Zend_Controller_Request_Abstract $request
     * @param Zend_Controller_Response_Abstract $response
     * @param array $invokeArgs Any additional invocation arguments
     * @return void
     */
    public function __construct(Zend_Controller_Request_Abstract $request,
                                Zend_Controller_Response_Abstract $response,
                                array $invokeArgs = array());

    /**
     * Dispatch the requested action
     *
     * @param string $action Method name of action
     * @return void
     */
    public function dispatch($action);
}