NullObjective.php

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<?php

/* Copyright (c) 2019 Richard Klees <richard.klees@concepts-and-training.de> Extended GPL, see docs/LICENSE */

namespace ILIAS\Setup;

use ILIAS\UI;

class NullObjective implements Objective
{
    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(Environment $environment) : array
    {
        return [];
    }

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