ProjectionChain.class.php

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00001 <?php
00002 /***************************************************************************
00003  *   Copyright (C) 2006-2007 by Konstantin V. Arkhipov                     *
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 /* $Id: ProjectionChain.class.php 4687 2007-12-09 18:57:18Z voxus $ */
00012 
00016     final class ProjectionChain implements ObjectProjection
00017     {
00018         private $list = array();
00019         
00023         public function add(ObjectProjection $projection, $name = null)
00024         {
00025             if ($name) {
00026                 Assert::isFalse(isset($this->list[$name]));
00027                 
00028                 $this->list[$name] = $projection;
00029             } else {
00030                 $this->list[] = $projection;
00031             }
00032             
00033             return $this;
00034         }
00035         
00039         public function process(Criteria $criteria, JoinCapableQuery $query)
00040         {
00041             foreach ($this->list as $projection)
00042                 $projection->process($criteria, $query);
00043             
00044             return $query;
00045         }
00046     }
00047 ?>

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