Struct Meta 

pub struct Meta {
    pub attribution: Attribution,
    pub occurred_at: Option<Timestamp>,
    pub idempotency_key: Option<String>,
    pub expected_version: Option<u64>,
    pub reason: Option<String>,
    pub tag: Option<NamespacedName>,
    pub visibility: Visibility,
}

Metadata common to every command.

Fields

attribution: Attribution

occurred_at: Option<Timestamp>

When it happened according to the actor; defaults to now.

idempotency_key: Option<String>

Retrying a command with the same key returns the original result.

expected_version: Option<u64>

Reject the command unless the record is at this version.

reason: Option<String>

tag: Option<NamespacedName>

visibility: Visibility

Implementations

impl Meta

pub fn by(attribution: Attribution) -> Self

pub fn reason(self, r: impl Into<String>) -> Self

pub fn idempotency_key(self, k: impl Into<String>) -> Self

pub fn expect_version(self, v: u64) -> Self

pub fn tag(self, t: NamespacedName) -> Self

pub fn occurred_at(self, t: Timestamp) -> Self

pub fn visibility(self, v: Visibility) -> Self

Trait Implementations

impl Clone for Meta

fn clone(&self) -> Meta

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Meta

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

Formats the value using the given formatter.