| 1: | <?php declare(strict_types=1); |
| 2: | |
| 3: | namespace Salient\Contract\Core\Entity; |
| 4: | |
| 5: | use Salient\Contract\Core\Hierarchical; |
| 6: | |
| 7: | /** |
| 8: | * @api |
| 9: | */ |
| 10: | interface Treeable extends Hierarchical, Relatable |
| 11: | { |
| 12: | /** |
| 13: | * Get the property that links children to a parent of the same type |
| 14: | * |
| 15: | * The property returned must accept `static|null`. |
| 16: | */ |
| 17: | public static function getParentProperty(): string; |
| 18: | |
| 19: | /** |
| 20: | * Get the property that links a parent to children of the same type |
| 21: | * |
| 22: | * The property returned must accept `iterable<static>`. |
| 23: | */ |
| 24: | public static function getChildrenProperty(): string; |
| 25: | } |
| 26: |