<?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_Feed_Reader

 * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 * @version    $Id: FeedInterface.php 25024 2012-07-30 15:08:15Z rob $

 */

/**

 * @category   Zend

 * @package    Zend_Feed_Reader

 * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 */

interface Zend_Feed_Reader_FeedInterface extends Iterator, Countable

{

    /**

     * Get a single author

     *

     * @param  int $index

     * @return string|null

     */

    public function getAuthor($index = 0);

    /**

     * Get an array with feed authors

     *

     * @return array

     */

    public function getAuthors();

    /**

     * Get the copyright entry

     *

     * @return string|null

     */

    public function getCopyright();

    /**

     * Get the feed creation date

     *

     * @return string|null

     */

    public function getDateCreated();

    /**

     * Get the feed modification date

     *

     * @return string|null

     */

    public function getDateModified();

    /**

     * Get the feed description

     *

     * @return string|null

     */

    public function getDescription();

    /**

     * Get the feed generator entry

     *

     * @return string|null

     */

    public function getGenerator();

    /**

     * Get the feed ID

     *

     * @return string|null

     */

    public function getId();

    /**

     * Get the feed language

     *

     * @return string|null

     */

    public function getLanguage();

    /**

     * Get a link to the HTML source

     *

     * @return string|null

     */

    public function getLink();

    /**

     * Get a link to the XML feed

     *

     * @return string|null

     */

    public function getFeedLink();

    /**

     * Get the feed title

     *

     * @return string|null

     */

    public function getTitle();

    /**

     * Get all categories

     *

     * @return Zend_Feed_Reader_Collection_Category

     */

    public function getCategories();

}