NullObjective.php

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<?php

declare(strict_types=1);

namespace ILIAS\Setup\Objective;

use ILIAS\Setup;

class NullObjective implements Setup\Objective
{
    public const LABEL = "Nothing to do.";

    public function getHash(): string
    {
        return "null-objective";
    }

    public function getLabel(): string
    {
        return self::LABEL;
    }

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

    /*
     * @inheritdocs
     */
    public function getPreconditions(Setup\Environment $environment): array
    {
        return [];
    }

    public function achieve(Setup\Environment $environment): Setup\Environment
    {
        return $environment;
    }

    public function isApplicable(Setup\Environment $environment): bool
    {
        return false;
    }
}