FilterChain.class.php

Go to the documentation of this 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 Lesser General Public License as        *
00007  *   published by the Free Software Foundation; either version 3 of the    *
00008  *   License, or (at your option) any later version.                       *
00009  *                                                                         *
00010  ***************************************************************************/
00011 
00017     final class FilterChain implements Filtrator
00018     {
00019         private $chain = array();
00020 
00024         public static function create()
00025         {
00026             return new self;
00027         }
00028         
00032         public function add(Filtrator $filter)
00033         {
00034             $this->chain[] = $filter;
00035             return $this;
00036         }
00037 
00041         public function dropAll()
00042         {
00043             $this->chain = array();
00044             return $this;
00045         }
00046 
00047         public function apply($value)
00048         {
00049             foreach ($this->chain as $filter)
00050                 $value = $filter->apply($value);
00051 
00052             return $value;
00053         }
00054     }
00055 ?>