crm.fsf.org/20131203/files/sites/all/modules-old/civicrm/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Compiler/ServiceReferenceGraphNode.php

   1 <?php
   2
   3 /*
   4  * This file is part of the Symfony package.
   5  *
   6  * (c) Fabien Potencier <fabien@symfony.com>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Symfony\Component\DependencyInjection\Compiler;
  13
  14 use Symfony\Component\DependencyInjection\Definition;
  15 use Symfony\Component\DependencyInjection\Alias;
  16
  17 /**
  18  * Represents a node in your service graph.
  19  *
  20  * Value is typically a definition, or an alias.
  21  *
  22  * @author Johannes M. Schmitt <schmittjoh@gmail.com>
  23  */
  24 class ServiceReferenceGraphNode
  25 {
  26     private $id;
  27     private $inEdges;
  28     private $outEdges;
  29     private $value;
  30
  31     /**
  32      * @param string $id    The node identifier
  33      * @param mixed  $value The node value
  34      */
  35     public function __construct($id, $value)
  36     {
  37         $this->id = $id;
  38         $this->value = $value;
  39         $this->inEdges = array();
  40         $this->outEdges = array();
  41     }
  42
  43     /**
  44      * Adds an in edge to this node.
  45      *
  46      * @param ServiceReferenceGraphEdge $edge
  47      */
  48     public function addInEdge(ServiceReferenceGraphEdge $edge)
  49     {
  50         $this->inEdges[] = $edge;
  51     }
  52
  53     /**
  54      * Adds an out edge to this node.
  55      *
  56      * @param ServiceReferenceGraphEdge $edge
  57      */
  58     public function addOutEdge(ServiceReferenceGraphEdge $edge)
  59     {
  60         $this->outEdges[] = $edge;
  61     }
  62
  63     /**
  64      * Checks if the value of this node is an Alias.
  65      *
  66      * @return bool True if the value is an Alias instance
  67      */
  68     public function isAlias()
  69     {
  70         return $this->value instanceof Alias;
  71     }
  72
  73     /**
  74      * Checks if the value of this node is a Definition.
  75      *
  76      * @return bool True if the value is a Definition instance
  77      */
  78     public function isDefinition()
  79     {
  80         return $this->value instanceof Definition;
  81     }
  82
  83     /**
  84      * Returns the identifier.
  85      *
  86      * @return string
  87      */
  88     public function getId()
  89     {
  90         return $this->id;
  91     }
  92
  93     /**
  94      * Returns the in edges.
  95      *
  96      * @return array The in ServiceReferenceGraphEdge array
  97      */
  98     public function getInEdges()
  99     {
 100         return $this->inEdges;
 101     }
 102
 103     /**
 104      * Returns the out edges.
 105      *
 106      * @return array The out ServiceReferenceGraphEdge array
 107      */
 108     public function getOutEdges()
 109     {
 110         return $this->outEdges;
 111     }
 112
 113     /**
 114      * Returns the value of this Node.
 115      *
 116      * @return mixed The value
 117      */
 118     public function getValue()
 119     {
 120         return $this->value;
 121     }
 122 }