Struct Event 

pub struct Event {

    pub id: Uuid,
    pub namespace: String,
    pub verb: String,
    pub substrate: SubstrateKind,
    pub actor: String,
    pub kind: EventKind,
    pub outcome: EventOutcome,
    pub payload: Value,
    pub payload_schema_version: u32,
    pub profile_state_version: Option<u64>,
    pub duration_us: i64,
    pub target_id: Option<Uuid>,
    pub session_id: Option<Uuid>,
    pub aggregate_kind: Option<String>,
    pub aggregate_id: Option<Uuid>,
    pub created_at: i64,
}

Storage-level event record. Every verb execution produces one. Immutable once appended; projection rows are written beside it at append time.

Fields

id: Uuid

namespace: String

verb: String

substrate: SubstrateKind

actor: String

kind: EventKind

outcome: EventOutcome

payload: Value

payload_schema_version: u32

profile_state_version: Option<u64>

duration_us: i64

target_id: Option<Uuid>

session_id: Option<Uuid>

aggregate_kind: Option<String>

aggregate_id: Option<Uuid>

created_at: i64

Implementations

impl Event

pub fn new( namespace: impl Into<String>, verb: impl Into<String>, kind: EventKind, substrate: SubstrateKind, actor: impl Into<String>, ) -> Self

Create a new event with a generated UUID and current timestamp.

pub fn with_outcome(self, o: EventOutcome) -> Self

Set the event outcome (success/failure).

pub fn with_payload(self, payload: Value) -> Self

Set the event payload JSON.

pub fn with_payload_schema_version(self, version: u32) -> Self

Set the payload schema version for forward compatibility.

pub fn with_profile_state_version(self, version: u64) -> Self

Set the brain profile state version at event time.

pub fn with_duration_us(self, us: i64) -> Self

Set the operation duration in microseconds.

pub fn with_target(self, id: Uuid) -> Self

Set the target entity/note ID for this event.

pub fn with_session_id(self, id: Uuid) -> Self

Set the session ID for correlating related events.

pub fn with_aggregate(self, kind: impl Into<String>, id: Uuid) -> Self

Set the aggregate kind and ID for event-sourced projections.

Trait Implementations

impl Clone for Event

fn clone(&self) -> Event

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Event

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Event

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Event

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

where __S: Serializer,

Serialize this value into the given Serde serializer.