Struct zenoh::Change

pub struct Change {
    pub path: Path,
    pub value: Option<Value>,
    pub timestamp: Timestamp,
    pub kind: ChangeKind,
}

The notification of a change occured on a path/value and reported to a subscription.

See Workspace::subscribe() and Workspace::subscribe_with_callback().

Fields

path: Path

the Path related to this change.

value: Option<Value>

the new Value if the kind is PUT. None if the kind is DELETE.

timestamp: Timestamp

the Timestamp of the change

kind: ChangeKind

the kind of change (PUT or DELETE).

Implementations

impl Change

pub fn from_sample(sample: Sample, decode_value: bool) -> ZResult<Change>

Convert a Sample into a Change. If the Sample's kind is DELETE, the Change's value is set to None. Otherwise, if decode_value is true the payload is decoded as a typed Value. If decode_value is false, the payload is converted into a Value::Raw.

pub fn into_sample(self) -> Sample

Convert this Change into a Sample to be sent via zenoh-net.

Trait Implementations

impl Clone for Change

fn clone(&self) -> Change

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Change

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

Formats the value using the given formatter.