Struct StreamEvent 

pub struct StreamEvent {
    pub scope: StreamScope,
    pub stream: String,
    pub key: Option<String>,
    pub payload: String,
    pub offset: u64,
    pub appended_at_ms: u128,
}

A single event in the stream log. offset is engine-assigned and monotonically increasing within (scope, stream); retention pruning may advance the head past low offsets but never reuses or rewrites them.

Fields

scope: StreamScope

stream: String

key: Option<String>

Optional stream-identity key. Carries the caller’s partition / row-key hint; the engine does not interpret it in this slice. CDC-materialization slices may use it as the source row’s primary key.

payload: String

Opaque UTF-8 payload — typically a JSON document. The engine does not parse or validate it.

offset: u64

Engine-assigned monotonic sequence number within (scope, stream). The first event has offset 1; offset 0 is reserved as the “no progress yet” sentinel returned by StreamRegistry::get_offset when a consumer has never saved.

appended_at_ms: u128

Trait Implementations

impl Clone for StreamEvent

fn clone(&self) -> StreamEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StreamEvent

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

Formats the value using the given formatter.

impl PartialEq for StreamEvent

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for StreamEvent

impl StructuralPartialEq for StreamEvent