AbstractList.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 
00017     abstract class AbstractList implements ArrayAccess, SimplifiedArrayAccess
00018     {
00019         protected $list = array();
00020         
00021         public function offsetGet($offset)
00022         {
00023             if (isset($this->list[$offset]))
00024                 return $this->list[$offset];
00025             
00026             throw new MissingElementException(
00027                 "no object found with index == '{$offset}'"
00028             );
00029         }
00030         
00034         public function offsetUnset($offset)
00035         {
00036             unset($this->list[$offset]);
00037             
00038             return $this;
00039         }
00040         
00041         public function offsetExists($offset)
00042         {
00043             return isset($this->list[$offset]);
00044         }
00045         
00046         // SAA goes here
00047         
00051         public function clean()
00052         {
00053             $this->list = array();
00054             
00055             return $this;
00056         }
00057         
00058         public function isEmpty()
00059         {
00060             return ($this->list === array());
00061         }
00062         
00063         public function getList()
00064         {
00065             return $this->list;
00066         }
00067         
00068         public function set($name, $var)
00069         {
00070             return $this->offsetSet($name, $var);
00071         }
00072         
00073         public function get($name)
00074         {
00075             return $this->offsetGet($name);
00076         }
00077         
00078         public function has($name)
00079         {
00080             return $this->offsetExists($name);
00081         }
00082         
00083         public function drop($name)
00084         {
00085             return $this->offsetUnset($name);
00086         }
00087     }
00088 ?>