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- 27.10.2014
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NodeInterface.php
01 <?php
02
03 /*
04 * This file is part of the Symfony package.
05 *
06 * (c) Fabien Potencier <fabien@symfony.com>
07 *
08 * For the full copyright and license information, please view the LICENSE
09 * file that was distributed with this source code.
10 */
11
12 namespace Symfony\Component\Config\Definition;
13
14 /**
15 * Common Interface among all nodes.
16 *
17 * In most cases, it is better to inherit from BaseNode instead of implementing
18 * this interface yourself.
19 *
20 * @author Johannes M. Schmitt <schmittjoh@gmail.com>
21 */
22 interface NodeInterface
23 {
24 /**
25 * Returns the name of the node.
26 *
27 * @return string The name of the node
28 */
29 public function getName();
30
31 /**
32 * Returns the path of the node.
33 *
34 * @return string The node path
35 */
36 public function getPath();
37
38 /**
39 * Returns true when the node is required.
40 *
41 * @return bool If the node is required
42 */
43 public function isRequired();
44
45 /**
46 * Returns true when the node has a default value.
47 *
48 * @return bool If the node has a default value
49 */
50 public function hasDefaultValue();
51
52 /**
53 * Returns the default value of the node.
54 *
55 * @return mixed The default value
56 * @throws \RuntimeException if the node has no default value
57 */
58 public function getDefaultValue();
59
60 /**
61 * Normalizes the supplied value.
62 *
63 * @param mixed $value The value to normalize
64 *
65 * @return mixed The normalized value
66 */
67 public function normalize($value);
68
69 /**
70 * Merges two values together.
71 *
72 * @param mixed $leftSide
73 * @param mixed $rightSide
74 *
75 * @return mixed The merged values
76 */
77 public function merge($leftSide, $rightSide);
78
79 /**
80 * Finalizes a value.
81 *
82 * @param mixed $value The value to finalize
83 *
84 * @return mixed The finalized value
85 */
86 public function finalize($value);
87 }
88