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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 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:  */
11: 
12: namespace Nette;
13: 
14: use Nette;
15: 
16: 
17: /**
18:  * Defines an object that has a modifiable and a read-only (frozen) state.
19:  *
20:  * @author     David Grudl
21:  *
22:  * @property-read bool $frozen
23:  */
24: abstract class FreezableObject extends Object implements IFreezable
25: {
26:     /** @var bool */
27:     private $frozen = FALSE;
28: 
29: 
30:     /**
31:      * Makes the object unmodifiable.
32:      * @return void
33:      */
34:     public function freeze()
35:     {
36:         $this->frozen = TRUE;
37:     }
38: 
39: 
40:     /**
41:      * Is the object unmodifiable?
42:      * @return bool
43:      */
44:     final public function isFrozen()
45:     {
46:         return $this->frozen;
47:     }
48: 
49: 
50:     /**
51:      * Creates a modifiable clone of the object.
52:      * @return void
53:      */
54:     public function __clone()
55:     {
56:         $this->frozen = FALSE;
57:     }
58: 
59: 
60:     /**
61:      * @return void
62:      */
63:     protected function updating()
64:     {
65:         if ($this->frozen) {
66:             $class = get_class($this);
67:             throw new InvalidStateException("Cannot modify a frozen object $class.");
68:         }
69:     }
70: 
71: }
72: 
Nette Framework 2.0.12 API API documentation generated by ApiGen 2.8.0