Struct opcua_server::prelude::NotificationMessage

pub struct NotificationMessage {
    pub sequence_number: u32,
    pub publish_time: DateTime,
    pub notification_data: Option<Vec<ExtensionObject>>,
}

Fields

sequence_number: u32

publish_time: DateTime

notification_data: Option<Vec<ExtensionObject>>

Implementations

impl NotificationMessage

pub fn data_change(
    sequence_number: u32,
    publish_time: DateTime,
    data_change_notifications: Vec<MonitoredItemNotification>,
    event_notifications: Vec<EventFieldList>
) -> NotificationMessage

Create a notification message which contains data change AND / OR events. Calling this with neither will panic. Notification data can have up to 2 elements to covers the case in table 158 where a subscription contains monitored items for events and data.

pub fn status_change(
    sequence_number: u32,
    publish_time: DateTime,
    status: StatusCode
) -> NotificationMessage

Create a status change notification message

pub fn keep_alive(
    sequence_number: u32,
    publish_time: DateTime
) -> NotificationMessage

Create a keep-alive notification message

pub fn notifications(
    &self,
    decoding_limits: &DecodingLimits
) -> Option<(Vec<DataChangeNotification>, Vec<EventNotificationList>)>

Extract notifications from the message. Unrecognized / unparseable notifications will be ignored. If there are no notifications, the function will return None.

Trait Implementations

impl BinaryEncoder<NotificationMessage> for NotificationMessage

fn byte_len(&self) -> usize

Returns the exact byte length of the structure as it would be if encode were called. This may be called prior to writing to ensure the correct amount of space is available.

fn encode<S>(&self, stream: &mut S) -> Result<usize, StatusCode> where
    S: Write, 

Encodes the instance to the write stream.

fn decode<S>(
    stream: &mut S,
    decoding_limits: &DecodingLimits
) -> Result<NotificationMessage, StatusCode> where
    S: Read, 

Decodes an instance from the read stream. The decoding limits are restrictions set by the server / client on the length of strings, arrays etc. If these limits are exceeded the implementation should return with a BadDecodingError as soon as possible.

fn encode_to_vec(&self) -> Vec<u8>

impl Clone for NotificationMessage

fn clone(&self) -> NotificationMessage

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for NotificationMessage

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl MessageInfo for NotificationMessage

fn object_id(&self) -> ObjectId

The object id associated with the message

impl PartialEq<NotificationMessage> for NotificationMessage

fn eq(&self, other: &NotificationMessage) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &NotificationMessage) -> bool

This method tests for !=.

impl StructuralPartialEq for NotificationMessage