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- <?php
- namespace Drupal\Core\Entity;
- /**
- * A storage that supports revisionable entity types.
- */
- interface RevisionableStorageInterface {
- /**
- * Creates a new revision starting off from the specified entity object.
- *
- * @param \Drupal\Core\Entity\EntityInterface|\Drupal\Core\Entity\RevisionableInterface $entity
- * The revisionable entity object being modified.
- * @param bool $default
- * (optional) Whether the new revision should be marked as default. Defaults
- * to TRUE.
- *
- * @return \Drupal\Core\Entity\EntityInterface|\Drupal\Core\Entity\RevisionableInterface
- * A new entity revision object.
- */
- public function createRevision(RevisionableInterface $entity, $default = TRUE);
- /**
- * Loads a specific entity revision.
- *
- * @param int $revision_id
- * The revision ID.
- *
- * @return \Drupal\Core\Entity\EntityInterface|null
- * The specified entity revision or NULL if not found.
- */
- public function loadRevision($revision_id);
- /**
- * Loads multiple entity revisions.
- *
- * @param array $revision_ids
- * An array of revision IDs to load.
- *
- * @return \Drupal\Core\Entity\EntityInterface[]
- * An array of entity revisions keyed by their revision ID, or an empty
- * array if none found.
- */
- public function loadMultipleRevisions(array $revision_ids);
- /**
- * Deletes a specific entity revision.
- *
- * A revision can only be deleted if it's not the currently active one.
- *
- * @param int $revision_id
- * The revision ID.
- */
- public function deleteRevision($revision_id);
- /**
- * Returns the latest revision identifier for an entity.
- *
- * @param int|string $entity_id
- * The entity identifier.
- *
- * @return int|string|null
- * The latest revision identifier or NULL if no revision could be found.
- */
- public function getLatestRevisionId($entity_id);
- }
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