1: <?php
 2: /**
 3:  * CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
 4:  * Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
 5:  *
 6:  * Licensed under The MIT License
 7:  * For full copyright and license information, please see the LICENSE.txt
 8:  * Redistributions of files must retain the above copyright notice.
 9:  *
10:  * @copyright     Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
11:  * @link          https://cakephp.org CakePHP(tm) Project
12:  * @since         3.0.0
13:  * @license       https://opensource.org/licenses/mit-license.php MIT License
14:  */
15: namespace Cake\Collection\Iterator;
16: 
17: use Cake\Collection\Collection;
18: use RecursiveIterator;
19: 
20: /**
21:  * An iterator that can be used as an argument for other iterators that require
22:  * a RecursiveIterator but do not want children. This iterator will
23:  * always behave as having no nested items.
24:  */
25: class NoChildrenIterator extends Collection implements RecursiveIterator
26: {
27:     /**
28:      * Returns false as there are no children iterators in this collection
29:      *
30:      * @return bool
31:      */
32:     public function hasChildren()
33:     {
34:         return false;
35:     }
36: 
37:     /**
38:      * Returns null as there are no children for this iteration level
39:      *
40:      * @return null
41:      */
42:     public function getChildren()
43:     {
44:         return null;
45:     }
46: }
47: