Struct QueryHistoryUseCase 

pub struct QueryHistoryUseCase<P, V>
where
    P: PersistencePort + Send + Sync + 'static,
    V: VectorPort + Send + Sync + 'static,
{ /* private fields */ }

Use-case: retrieve the full ordered history timeline for a (subject, predicate) line.

Generic over persistence and vector ports (vector is unused; compile-time seam only).

Implementations

impl<P, V> QueryHistoryUseCase<P, V>

where P: PersistencePort + Send + Sync + 'static, V: VectorPort + Send + Sync + 'static,

pub fn new( persistence: Arc<P>, vector: Option<Arc<V>>, config: EngineConfig, ) -> Self

pub fn execute_with_time( &self, req: QueryHistoryRequest, now: DateTime<Utc>, ) -> Result<QueryHistoryResponse, MemError>

Read path: no Txn (read-only). TruthEngine fold → history timeline DTO.

now is injected by the EngineHandle (DETERMINISM — no clock reads here).

pub fn execute( &self, req: QueryHistoryRequest, ) -> Result<QueryHistoryResponse, MemError>

Convenience wrapper that stamps now internally (for direct calls outside EngineHandle).