NullData.php

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<?php

declare(strict_types=1);

namespace ILIAS\MetaData\Presentation;

use ILIAS\MetaData\Elements\Data\DataInterface as ElementsDataInterface;
use ILIAS\MetaData\Vocabularies\Slots\Identifier as SlotIdentifier;

class NullData implements DataInterface
{
    public function dataValue(ElementsDataInterface $data): string
    {
        return '';
    }

    public function vocabularyValue(
        string $value,
        SlotIdentifier $vocabulary_slot
    ): string {
        return '';
    }

    public function language(string $language): string
    {
        return '';
    }

    public function datetime(string $datetime): string
    {
        return '';
    }

    public function duration(string $duration): string
    {
        return '';
    }
}