protected FormatterBase::getFieldSetting($setting_name)

public FieldConfigInterface::setDefaultValue($value)

public BaseFieldOverride::isReadOnly()

protected WidgetBase::getFilteredDescription() Returns

hook_field_purge_field(\Drupal\field\Entity\FieldConfig $field) Acts when a field is being purged.

hook_field_widget_form_alter(&$element, \Drupal\Core\Form\FormStateInterface $form_state, $context) Alter

public FieldStorageDefinitionInterface

public WidgetBase::settingsForm(array $form, FormStateInterface $form_state)

public FieldStorageConfig::getSetting($setting_name)

public FieldStorageConfig::getProvider()