<?php
/**
 * Zend Framework (http://framework.zend.com/)
 *
 * @link      http://github.com/zendframework/zf2 for the canonical source repository
 * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
 * @license   http://framework.zend.com/license/new-bsd New BSD License
 */

namespace Zend\Stdlib\Hydrator\Strategy;

/**
 * @todo v3.0, add optional object/data to extract/hydrate.
 */
interface StrategyInterface
{
    /**
     * Converts the given value so that it can be extracted by the hydrator.
     *
     * @param mixed   $value The original value.
     * @param object $object (optional) The original object for context.
     * @return mixed Returns the value that should be extracted.
     */
    public function extract($value);

    /**
     * Converts the given value so that it can be hydrated by the hydrator.
     *
     * @param mixed $value The original value.
     * @param array  $data (optional) The original data for context.
     * @return mixed Returns the value that should be hydrated.
     */
    public function hydrate($value);
}
