NullAdapter.php

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<?php
 
declare(strict_types=1);
 
namespace ILIAS\MetaData\Editor\Vocabulary;
 
use ILIAS\MetaData\Vocabularies\Slots\Identifier as SlotIdentifier;
use ILIAS\MetaData\Elements\ElementInterface;
use ILIAS\MetaData\Vocabularies\Slots\Identifier;
 
class NullAdapter implements AdapterInterface
{
    public function findElementOfCondition(
        SlotIdentifier $slot,
        ElementInterface $element,
        ElementInterface ...$all_elements
    ): ?ElementInterface {
        return null;
    }
 
    public function slotForElement(ElementInterface $element): SlotIdentifier
    {
        return SlotIdentifier::NULL;
    }
 
    public function slotsForElementWithoutCondition(ElementInterface $element): \Generator
    {
        yield from [];
    }
 
    public function potentialSlotForElementByCondition(
        ElementInterface $element,
        ElementInterface $element_in_condition,
        string $value
    ): SlotIdentifier {
        return SlotIdentifier::NULL;
    }
 
    public function doesSlotHaveVocabularies(
        SlotIdentifier $slot
    ): bool {
        return false;
    }
 
    public function doesSlotAllowCustomInput(
        SlotIdentifier $slot,
    ): bool {
        return false;
    }
 
    public function isValueInVocabulariesForSlot(
        SlotIdentifier $slot,
        string $value
    ): bool {
        return false;
    }
 
    public function valuesInVocabulariesForSlot(
        SlotIdentifier $slot,
        ?string $add_if_not_included = null
    ): \Generator {
        yield from [];
    }
 
    public function sourceMapForSlot(SlotIdentifier $slot): \Closure
    {
        return function () {};
    }
}