NullBaseNavigator.php

Go to the documentation of this file.

<?php

declare(strict_types=1);

namespace ILIAS\MetaData\Paths\Navigator;

use ILIAS\MetaData\Paths\Steps\NullStep;
use ILIAS\MetaData\Paths\Steps\StepInterface;

class NullBaseNavigator implements BaseNavigatorInterface
{
    public function nextStep(): ?BaseNavigatorInterface
    {
        return new NullBaseNavigator();
    }

    public function currentStep(): ?StepInterface
    {
        return new NullStep();
    }

    public function previousStep(): ?BaseNavigatorInterface
    {
        return new NullBaseNavigator();
    }

    public function hasNextStep(): bool
    {
        return false;
    }

    public function hasPreviousStep(): bool
    {
        return false;
    }

    public function hasElements(): bool
    {
        return false;
    }
}