<?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_Validate

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

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

 * @version    $Id: Interface.php 23262 2010-10-27 14:03:36Z matthew $

 */

/**

 * @category   Zend

 * @package    Zend_Validate

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

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

 */

interface Zend_Validate_Interface

{

    /**

     * Returns true if and only if $value meets the validation requirements

     *

     * If $value fails validation, then this method returns false, and

     * getMessages() will return an array of messages that explain why the

     * validation failed.

     *

     * @param  mixed $value

     * @return boolean

     * @throws Zend_Validate_Exception If validation of $value is impossible

     */

    public function isValid($value);

    /**

     * Returns an array of messages that explain why the most recent isValid()

     * call returned false. The array keys are validation failure message identifiers,

     * and the array values are the corresponding human-readable message strings.

     *

     * If isValid() was never called or if the most recent isValid() call

     * returned true, then this method returns an empty array.

     *

     * @return array

     */

    public function getMessages();

}