ServiceReferenceGraphEdge.php

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace Symfony\Component\DependencyInjection\Compiler;


/**
 * Represents an edge in your service graph.
 *
 * Value is typically a reference.
 *
 * @author Johannes M. Schmitt <schmittjoh@gmail.com>
 */
class ServiceReferenceGraphEdge {
  private $sourceNode;
  private $destNode;
  private $value;

  /**
   * Constructor.
   *
   * @param ServiceReferenceGraphNode $sourceNode
   * @param ServiceReferenceGraphNode $destNode
   * @param string                    $value
   */
  public function __construct(ServiceReferenceGraphNode $sourceNode, ServiceReferenceGraphNode $destNode, $value = null) {
    $this->sourceNode = $sourceNode;
    $this->destNode = $destNode;
    $this->value = $value;
  }

  /**
   * Returns the value of the edge
   *
   * @return ServiceReferenceGraphNode
   */
  public function getValue() {
    return $this->value;
  }

  /**
   * Returns the source node
   *
   * @return ServiceReferenceGraphNode
   */
  public function getSourceNode() {
    return $this->sourceNode;
  }

  /**
   * Returns the destination node
   *
   * @return ServiceReferenceGraphNode
   */
  public function getDestNode() {
    return $this->destNode;
  }

}