public FieldStorageConfig::isLocked()

public BaseFieldOverride::isDisplayConfigurable($context)

public static BaseFieldDefinition::create($type)

public static FieldItemDataDefinition::c

public FieldItemList::defaultValuesFormValidate(array $element, array &$form

hook_field_purge_field_storage(\Drupal\field\Entity\FieldStorageConfig $field_storage) Acts when a field storage

public FieldStorageDefinitionInterface

public BaseFieldDefinition::getOptionsProvider($property_name

public FieldItemListInterface::__set($property_name,

public BaseFieldDefinition::setCardinality($cardinality)