onPHP: core/Form/Filters/FilterChain.class.php Source File

00001 <?php
00002 /***************************************************************************
00003  *   Copyright (C) 2005-2007 by Anton E. Lebedevich                        *
00004  *                                                                         *
00005  *   This program is free software; you can redistribute it and/or modify  *
00006  *   it under the terms of the GNU General Public License as published by  *
00007  *   the Free Software Foundation; either version 2 of the License, or     *
00008  *   (at your option) any later version.                                   *
00009  *                                                                         *
00010  ***************************************************************************/
00011 /* $Id: FilterChain.class.php 3202 2007-04-30 19:01:43Z voxus $ */
00012 
00018     final class FilterChain implements Filtrator
00019     {
00020         protected $chain = array();
00021 
00025         public static function create()
00026         {
00027             return new self;
00028         }
00029         
00033         public function add(Filtrator $filter)
00034         {
00035             $this->chain[] = $filter;
00036             return $this;
00037         }
00038 
00042         public function dropAll()
00043         {
00044             $this->chain = array();
00045             return $this;
00046         }
00047 
00048         public function apply($value)
00049         {
00050             foreach ($this->chain as &$filter)
00051                 $value = $filter->apply($value);
00052 
00053             return $value;
00054         }
00055     }
00056 ?>