Defines the interface for entity storage schema handler classes.
An entity type's storage schema handler is responsible for creating the storage backend's schema that the entity type's storage handler needs for storing its entities. For example, if the storage handler is for a SQL backend, then the storage schema handler is responsible for creating the needed tables. During the application lifetime, an entity type's definition can change in a way that requires changes to the storage schema, so this interface defines methods for that as well.
Hierarchy
- interface \Drupal\Core\Entity\EntityTypeListenerInterface
- interface \Drupal\Core\Entity\Schema\EntityStorageSchemaInterface
See also
\Drupal\Core\Entity\EntityStorageInterface
File
- core/lib/Drupal/Core/Entity/Schema/EntityStorageSchemaInterface.php, line 21
Namespace
Drupal\Core\Entity\Schema
Members
| Name | Modifiers | Type | Description |
|---|---|---|---|
| EntityStorageSchemaInterface::requiresEntityDataMigration | public | function | Checks if existing data would be lost if the schema changes were applied. |
| EntityStorageSchemaInterface::requiresEntityStorageSchemaChanges | public | function | Checks if the changes to the entity type requires storage schema changes. |
| EntityTypeListenerInterface::onEntityTypeCreate | public | function | Reacts to the creation of the entity type. |
| EntityTypeListenerInterface::onEntityTypeDelete | public | function | Reacts to the deletion of the entity type. |
| EntityTypeListenerInterface::onEntityTypeUpdate | public | function | Reacts to the update of the entity type. |
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