Expanded class hierarchy of FieldInstanceStorageController

class \Drupal\Core\Entity\EntityStorageControllerBase implements EntityControllerInterface, EntityStorageControllerInterface
- class \Drupal\Core\Config\Entity\ConfigStorageController
  - class \Drupal\block\BlockStorageController
  - class \Drupal\config_test\ConfigTestStorageController
  - class \Drupal\contact\CategoryStorageController
  - class \Drupal\custom_block\CustomBlockTypeStorageController
  - class \Drupal\entity\EntityViewModeStorageController
  - class \Drupal\field\FieldInstanceStorageController
  - class \Drupal\field\FieldStorageController
  - class \Drupal\filter\FilterFormatStorageController
  - class \Drupal\image\ImageStyleStorageController
  - class \Drupal\shortcut\ShortcutStorageController
  - class \Drupal\system\ActionStorageController
  - class \Drupal\taxonomy\VocabularyStorageController
  - class \Drupal\user\RoleStorageController
  - class \Drupal\views\ViewStorageController
- class \Drupal\Core\Entity\DatabaseStorageController