The method will check for custom fields if given $criterion implements
CustomFieldInterface. With optional parameters $fieldTypeIdentifier and
$name specific field type and field from its Indexable implementation
can be targeted.
public getFieldNames ( eZ\Publish\API\Repository\Values\Content\Query\Criterion $criterion, string $fieldDefinitionIdentifier, null | string $fieldTypeIdentifier = null, null | string $name = null ) : string[] | ||
$criterion | eZ\Publish\API\Repository\Values\Content\Query\Criterion | |
$fieldDefinitionIdentifier | string | |
$fieldTypeIdentifier | null | string | |
$name | null | string | |
리턴 | string[] |