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  1: <?php
  2: 
  3: /**
  4:  * This file is part of the Nette Framework (http://nette.org)
  5:  *
  6:  * Copyright (c) 2004, 2011 David Grudl (http://davidgrudl.com)
  7:  *
  8:  * For the full copyright and license information, please view
  9:  * the file license.txt that was distributed with this source code.
 10:  * @package Nette
 11:  */
 12: 
 13: 
 14: 
 15: /**
 16:  * Provides the base class for a generic list (items can be accessed by index).
 17:  *
 18:  * @author     David Grudl
 19:  * @package Nette
 20:  */
 21: class NArrayList extends NObject implements ArrayAccess, Countable, IteratorAggregate
 22: {
 23:     private $list = array();
 24: 
 25: 
 26: 
 27:     /**
 28:      * Returns an iterator over all items.
 29:      * @return ArrayIterator
 30:      */
 31:     public function getIterator()
 32:     {
 33:         return new ArrayIterator($this->list);
 34:     }
 35: 
 36: 
 37: 
 38:     /**
 39:      * Returns items count.
 40:      * @return int
 41:      */
 42:     public function count()
 43:     {
 44:         return count($this->list);
 45:     }
 46: 
 47: 
 48: 
 49:     /**
 50:      * Replaces or appends a item.
 51:      * @param  int
 52:      * @param  mixed
 53:      * @return void
 54:      * @throws OutOfRangeException
 55:      */
 56:     public function offsetSet($index, $value)
 57:     {
 58:         if ($index === NULL) {
 59:             $this->list[] = $value;
 60: 
 61:         } elseif ($index < 0 || $index >= count($this->list)) {
 62:             throw new OutOfRangeException("Offset invalid or out of range");
 63: 
 64:         } else {
 65:             $this->list[(int) $index] = $value;
 66:         }
 67:     }
 68: 
 69: 
 70: 
 71:     /**
 72:      * Returns a item.
 73:      * @param  int
 74:      * @return mixed
 75:      * @throws OutOfRangeException
 76:      */
 77:     public function offsetGet($index)
 78:     {
 79:         if ($index < 0 || $index >= count($this->list)) {
 80:             throw new OutOfRangeException("Offset invalid or out of range");
 81:         }
 82:         return $this->list[(int) $index];
 83:     }
 84: 
 85: 
 86: 
 87:     /**
 88:      * Determines whether a item exists.
 89:      * @param  int
 90:      * @return bool
 91:      */
 92:     public function offsetExists($index)
 93:     {
 94:         return $index >= 0 && $index < count($this->list);
 95:     }
 96: 
 97: 
 98: 
 99:     /**
100:      * Removes the element at the specified position in this list.
101:      * @param  int
102:      * @return void
103:      * @throws OutOfRangeException
104:      */
105:     public function offsetUnset($index)
106:     {
107:         if ($index < 0 || $index >= count($this->list)) {
108:             throw new OutOfRangeException("Offset invalid or out of range");
109:         }
110:         array_splice($this->list, (int) $index, 1);
111:     }
112: 
113: }
114: 
Nette Framework 2.0beta1 (for PHP 5.2) API API documentation generated by ApiGen 2.3.0