Struct MemoryProvenance 

pub struct MemoryProvenance { /* private fields */ }

Who says so, and when they saw it.

Memory without provenance is hearsay: an agent reading it later cannot weigh a claim it cannot attribute. The session is carried too, so a memory found from somewhere else can be walked back to the working session that produced it.

Implementations

impl MemoryProvenance

pub fn new( ceremony_id: CeremonyId, role_id: Option<RoleId>, observed_at: OffsetDateTime, ) -> Self

pub fn ceremony_id(&self) -> &CeremonyId

pub fn role_id(&self) -> Option<&RoleId>

The role that saw it, when a role did. Absent for what the engine itself observed — a transition firing has no author.

pub fn observed_at(&self) -> OffsetDateTime

pub fn idempotency_key( &self, discriminator: &str, ) -> Result<String, DomainError>

An idempotency key that names the write rather than the moment.

Retrying a write must not double it, and the only durable way to say “this is that same write again” is to derive the key from what is being written about. Wall-clock time would make every retry a new memory.

Trait Implementations

impl Clone for MemoryProvenance

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MemoryProvenance

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MemoryProvenance

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for MemoryProvenance

impl PartialEq for MemoryProvenance

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for MemoryProvenance

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for MemoryProvenance