<?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;

/**

 * Reference represents a service reference.

 *

 * @author Fabien Potencier <fabien@symfony.com>

 *

 * @api

 */

class Reference

{

    private $id;

    private $invalidBehavior;

    private $strict;

    /**

     * Constructor.

     *

     * @param string  $id              The service identifier

     * @param int     $invalidBehavior The behavior when the service does not exist

     * @param Boolean $strict          Sets how this reference is validated

     *

     * @see Container

     */

    public function __construct($id, $invalidBehavior = ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE, $strict = true)

    {

        $this->id = $id;

        $this->invalidBehavior = $invalidBehavior;

        $this->strict = $strict;

    }

    /**

     * __toString.

     *

     * @return string The service identifier

     */

    public function __toString()

    {

        return (string) $this->id;

    }

    /**

     * Returns the behavior to be used when the service does not exist.

     *

     * @return int

     */

    public function getInvalidBehavior()

    {

        return $this->invalidBehavior;

    }

    /**

     * Returns true when this Reference is strict

     *

     * @return Boolean

     */

    public function isStrict()

    {

        return $this->strict;

    }

}