--- /dev/null
+<?php
+/**
+ * Zend Framework (http://framework.zend.com/)
+ *
+ * @link http://github.com/zendframework/zf2 for the canonical source repository
+ * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ */
+
+namespace Zend\Feed\Reader\Feed;
+
+use Countable;
+use Iterator;
+
+/**
+*/
+interface 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 \DateTime|null
+ */
+ public function getDateCreated();
+
+ /**
+ * Get the feed modification date
+ *
+ * @return \DateTime|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();
+}