Expanded class hierarchy of ItemStorageController

class \Drupal\Core\Entity\EntityStorageControllerBase implements EntityControllerInterface, EntityStorageControllerInterface
- class \Drupal\Core\Config\Entity\ConfigStorageController
- class \Drupal\Core\Entity\DatabaseStorageController
  - class \Drupal\Core\Entity\DatabaseStorageControllerNG
    class \Drupal\aggregator\FeedStorageController
    
    class \Drupal\aggregator\ItemStorageController
    
    class \Drupal\comment\CommentStorageController
    
    class \Drupal\custom_block\CustomBlockStorageController
    
    class \Drupal\entity_test\EntityTestStorageController
    
    class \Drupal\node\NodeStorageController
    
    class \Drupal\taxonomy\TermStorageController
    
    class \Drupal\user\UserStorageController
  - class \Drupal\field_test\TestEntityController
  - class \Drupal\file\FileStorageController
  - class \Drupal\menu_link\MenuLinkStorageController