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- 06.01.2017
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ServiceReferenceGraphNode.php
001 <?php
002
003 /*
004 * This file is part of the Symfony package.
005 *
006 * (c) Fabien Potencier <fabien@symfony.com>
007 *
008 * For the full copyright and license information, please view the LICENSE
009 * file that was distributed with this source code.
010 */
011
012 namespace Symfony\Component\DependencyInjection\Compiler;
013
014 use Symfony\Component\DependencyInjection\Definition;
015 use Symfony\Component\DependencyInjection\Alias;
016
017 /**
018 * Represents a node in your service graph.
019 *
020 * Value is typically a definition, or an alias.
021 *
022 * @author Johannes M. Schmitt <schmittjoh@gmail.com>
023 */
024 class ServiceReferenceGraphNode
025 {
026 private $id;
027 private $inEdges = array();
028 private $outEdges = array();
029 private $value;
030
031 /**
032 * @param string $id The node identifier
033 * @param mixed $value The node value
034 */
035 public function __construct($id, $value)
036 {
037 $this->id = $id;
038 $this->value = $value;
039 }
040
041 /**
042 * Adds an in edge to this node.
043 *
044 * @param ServiceReferenceGraphEdge $edge
045 */
046 public function addInEdge(ServiceReferenceGraphEdge $edge)
047 {
048 $this->inEdges[] = $edge;
049 }
050
051 /**
052 * Adds an out edge to this node.
053 *
054 * @param ServiceReferenceGraphEdge $edge
055 */
056 public function addOutEdge(ServiceReferenceGraphEdge $edge)
057 {
058 $this->outEdges[] = $edge;
059 }
060
061 /**
062 * Checks if the value of this node is an Alias.
063 *
064 * @return bool True if the value is an Alias instance
065 */
066 public function isAlias()
067 {
068 return $this->value instanceof Alias;
069 }
070
071 /**
072 * Checks if the value of this node is a Definition.
073 *
074 * @return bool True if the value is a Definition instance
075 */
076 public function isDefinition()
077 {
078 return $this->value instanceof Definition;
079 }
080
081 /**
082 * Returns the identifier.
083 *
084 * @return string
085 */
086 public function getId()
087 {
088 return $this->id;
089 }
090
091 /**
092 * Returns the in edges.
093 *
094 * @return array The in ServiceReferenceGraphEdge array
095 */
096 public function getInEdges()
097 {
098 return $this->inEdges;
099 }
100
101 /**
102 * Returns the out edges.
103 *
104 * @return array The out ServiceReferenceGraphEdge array
105 */
106 public function getOutEdges()
107 {
108 return $this->outEdges;
109 }
110
111 /**
112 * Returns the value of this Node.
113 *
114 * @return mixed The value
115 */
116 public function getValue()
117 {
118 return $this->value;
119 }
120 }
121