<?php
/**
 * Instance creator
 *
 * $Id$
 *
 * @author gERD Schaufelberger <gerd@php-tools.net>
 * @license PHP License
 * @package Wombat
 * @subpackage base
 */

/**
 * Instance creator
 *
 * Functor to encapsulate new operator
 *
 * @version 0.3.0
 * @package Wombat
 * @subpackage base
 */
class WBClass_Creator_WBResponse extends WBClass_Creator
{
    /**
     * Keep current instance
     *
     * @var array
     */
    static private $instance;


   /**
    * Return Object
    *
    * Response is singleton
    * 
    * @return object
    */
    public function instantiate( $parameter = array() )
    {
        if (!empty(self::$instance)) {
            return self::$instance;
        }

        // select module
        if (empty($parameter['module'])) {
            $parameter['module']    =   'Http';
        }

        $clazz  =   'WBResponse_' . $parameter['module'];
        WBClass::load($clazz);
        self::$instance =   new $clazz;

        return self::$instance;
    }
}