vendor/symfony/dependency-injection/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 = array();
  28     private $outEdges = array();
  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     }
  40
  41     public function addInEdge(ServiceReferenceGraphEdge $edge)
  42     {
  43         $this->inEdges[] = $edge;
  44     }
  45
  46     public function addOutEdge(ServiceReferenceGraphEdge $edge)
  47     {
  48         $this->outEdges[] = $edge;
  49     }
  50
  51     /**
  52      * Checks if the value of this node is an Alias.
  53      *
  54      * @return bool True if the value is an Alias instance
  55      */
  56     public function isAlias()
  57     {
  58         return $this->value instanceof Alias;
  59     }
  60
  61     /**
  62      * Checks if the value of this node is a Definition.
  63      *
  64      * @return bool True if the value is a Definition instance
  65      */
  66     public function isDefinition()
  67     {
  68         return $this->value instanceof Definition;
  69     }
  70
  71     /**
  72      * Returns the identifier.
  73      *
  74      * @return string
  75      */
  76     public function getId()
  77     {
  78         return $this->id;
  79     }
  80
  81     /**
  82      * Returns the in edges.
  83      *
  84      * @return array The in ServiceReferenceGraphEdge array
  85      */
  86     public function getInEdges()
  87     {
  88         return $this->inEdges;
  89     }
  90
  91     /**
  92      * Returns the out edges.
  93      *
  94      * @return array The out ServiceReferenceGraphEdge array
  95      */
  96     public function getOutEdges()
  97     {
  98         return $this->outEdges;
  99     }
 100
 101     /**
 102      * Returns the value of this Node.
 103      *
 104      * @return mixed The value
 105      */
 106     public function getValue()
 107     {
 108         return $this->value;
 109     }
 110 }