<?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_CodeGenerator

 * @subpackage Php

 * @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: DefaultValue.php 20096 2010-01-06 02:05:09Z bkarwin $

 */

/**

 * A value-holder object for non-expressable parameter default values, such as null, booleans and empty array()

 *

 * @category   Zend

 * @package    Zend_CodeGenerator

 * @subpackage Php

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

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

 */

class Zend_CodeGenerator_Php_Parameter_DefaultValue

{

    /**

     * @var string

     */

    protected $_defaultValue = null;

    /**

     *

     * @param string $defaultValue

     * @throws Zend_CodeGenerator_Php_Exception

     */

    public function __construct($defaultValue)

    {

        if(!is_string($defaultValue)) {

            require_once "Zend/CodeGenerator/Php/Exception.php";

            throw new Zend_CodeGenerator_Php_Exception(

                "Can only set a string as default value representation, ".

                "but ".gettype($defaultValue)." was given."

            );

        }

        $this->_defaultValue = $defaultValue;

    }

    public function __toString()

    {

        return $this->_defaultValue;

    }

}