FieldDefinitionInterface

class \Drupal\Core\Field\BaseFieldDefinition extends \Drupal\Core\Field\FieldDefinitionInterface, \Drupal\Core\Field\FieldStorageDefinitionInterface, \Drupal\Core\Field\RequiredFieldStorageDefinitionInterface uses \Drupal\Core\Cache\UnchangingCacheableDependencyTrait, \Drupal\Core\Field\FieldInputValueNormalizerTrait implements \Drupal\Core\TypedData\ListDataDefinition
class \Drupal\Core\Field\Entity\BaseFieldOverride implements \Drupal\Core\Field\FieldConfigBase
class \Drupal\Core\Field\FieldConfigBase extends \Drupal\Core\Field\FieldConfigInterface uses \Drupal\Core\Field\FieldInputValueNormalizerTrait implements \Drupal\Core\Config\Entity\ConfigEntityBase
class \Drupal\Core\Field\FieldDefinition extends \Drupal\Core\Field\FieldDefinitionInterface uses \Drupal\Core\Cache\UnchangingCacheableDependencyTrait, \Drupal\Core\Field\FieldInputValueNormalizerTrait implements \Drupal\Core\TypedData\ListDataDefinition
class \Drupal\Tests\migrate\Unit\Plugin\migrate\destination\BaseFieldDefinitionTest implements \Drupal\Core\Field\BaseFieldDefinition
class \Drupal\entity_test\FieldStorageDefinition implements \Drupal\Core\Field\BaseFieldDefinition
class \Drupal\field\Entity\FieldConfig extends \Drupal\field\FieldConfigInterface implements \Drupal\Core\Field\FieldConfigBase

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