Struct DataChangeCallback 

pub struct DataChangeCallback { /* private fields */ }

A wrapper around a data change callback that implements OnSubscriptionNotification

Implementations

impl DataChangeCallback

pub fn new( data_value: impl FnMut(DataValue, &MonitoredItem) + Send + Sync + 'static, ) -> DataChangeCallback

Create a new data change callback wrapper.

Arguments

• data_value - Called for each received data value.

Trait Implementations

impl OnSubscriptionNotification for DataChangeCallback

fn on_data_value(&mut self, notification: DataValue, item: &MonitoredItem)

Called for each data value change.

fn on_subscription_status_change( &mut self, notification: StatusChangeNotification, )

Called when a subscription changes state on the server.

fn on_event(&mut self, event_fields: Option<Vec<Variant>>, item: &MonitoredItem)

Called for each received event.