3 * Zend Framework (http://framework.zend.com/)
5 * @link http://github.com/zendframework/zf2 for the canonical source repository
6 * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
7 * @license http://framework.zend.com/license/new-bsd New BSD License
10 namespace Zend\Stdlib;
12 interface MessageInterface
17 * @param string|int|array|\Traversable $spec
20 public function setMetadata($spec, $value = null);
25 * @param null|string|int $key
28 public function getMetadata($key = null);
33 * @param mixed $content
36 public function setContent($content);
43 public function getContent();