public FieldItemInterface::__isset($property_name)

public static FieldItemInterface::defaultFieldSettings()

public FieldItemInterface::deleteRevision()

public FieldItemInterface::getFieldDefinition()

public FieldItemInterface::__set($property_name, $value)

public FieldItemInterface::getEntity()

public static FieldItemInterface::schema(FieldStorageDefinitionInterface

public static FieldItemInterface::calculateDependencies(Fiel

public FieldItemInterface::delete()

public static FieldItemInterface::propertyDefinitions(FieldS