interface EntityStorageSchemaInterface

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.