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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\WikispeechSpeechDataCollector\Domain; |
| 4 | |
| 5 | /** |
| 6 | * @file |
| 7 | * @ingroup Extensions |
| 8 | * @license GPL-2.0-or-later |
| 9 | */ |
| 10 | |
| 11 | /** |
| 12 | * Interface Persistent |
| 13 | * @since 0.1.0 |
| 14 | * |
| 15 | * A persistent class represents a domain object |
| 16 | * that can be stored and retrieved from a database. |
| 17 | * |
| 18 | * A persistent class is a pure data container. |
| 19 | * Any per subclass business logic should be implemented |
| 20 | * using the visitor pattern {@link PersistentVisitor}. |
| 21 | * Database access uses a CRUD-pattern {@link AbstractRdbmsCrud}. |
| 22 | */ |
| 23 | interface Persistent { |
| 24 | |
| 25 | /** @return mixed object identity */ |
| 26 | public function getIdentity(); |
| 27 | |
| 28 | /** |
| 29 | * @param mixed $identity object identity |
| 30 | */ |
| 31 | public function setIdentity( $identity ): void; |
| 32 | |
| 33 | /** |
| 34 | * Visitor pattern accepting function. |
| 35 | * https://en.wikipedia.org/wiki/Visitor_pattern |
| 36 | * |
| 37 | * Used to separate business logic from this pure data container class. |
| 38 | * |
| 39 | * @param PersistentVisitor $visitor |
| 40 | * @return mixed|null |
| 41 | */ |
| 42 | public function accept( PersistentVisitor $visitor ); |
| 43 | |
| 44 | public function __toString(): string; |
| 45 | } |