<?php


namespace Pheanstalk;

use Pheanstalk\Contract\JobIdInterface;

/**
 * This class implements a value object for beanstalkd job IDs.
 */
class JobId implements JobIdInterface
{
    private $id;

    public function __construct(int $id)
    {
        if ($id < 0) {
            throw new \InvalidArgumentException('Id must be >= 0');
        }
        $this->id = $id;
    }

    public function getId(): int
    {
        return $this->id;
    }
}