Struct CheckpointBuilder 

pub struct CheckpointBuilder { /* private fields */ }

Constructs checkpoint snapshots from event streams and state.

Implementations

impl CheckpointBuilder

pub fn new(timeline_id: &str, tick: u64) -> Self

Create a builder targeting a specific timeline and tick.

pub fn compute_event_hash(events: &[CanonEventSnapshot]) -> String

Compute the BLAKE3 chain hash over all events up to this checkpoint.

Events are hashed in order by feeding each event’s digest. This produces the same result regardless of how many times it is computed, as long as the input events are in canonical order.

pub fn compute_state_hash(state: &StateSnapshot) -> Result<String, String>

Compute BLAKE3 hash of the serialized state snapshot.

pub fn build( &self, events: &[CanonEventSnapshot], state: &StateSnapshot, ) -> Result<CheckpointSnapshot, String>

Build a complete checkpoint snapshot.