Struct JobContext 

#[non_exhaustive]
pub struct JobContext<'a> {
    pub last_run: Option<JobRunRecord>,
    pub cancel: CancellationToken,
    pub host: Option<&'a dyn JobHost>,
    pub _marker: PhantomData<&'a ()>,
}

Per-run context.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

last_run: Option<JobRunRecord>

Information about the previous run, if any.

cancel: CancellationToken

Cooperative-cancel token — implementations check between work units to honor reload / shutdown.

host: Option<&'a dyn JobHost>

Optional host services pointer. None in pure unit tests; the scheduler driver populates it with a concrete dyn JobHost (typically uni-db::scheduler::SchedulerJobHost).

_marker: PhantomData<&'a ()>

Lifetime marker for session / config refs added later.

Implementations

impl<'a> JobContext<'a>

pub fn new(cancel: CancellationToken, last_run: Option<JobRunRecord>) -> Self

Construct a fresh per-run context from a cancellation token and the previous run’s record (if any).

Out-of-crate callers (e.g., the host scheduler driver in uni-db::scheduler) use this constructor because JobContext is #[non_exhaustive] and cannot be built with a struct literal from outside this crate. Host services (storage, inner-query, etc.) are attached via Self::with_host.

pub fn with_host(self, host: &'a dyn JobHost) -> Self

Attach a host pointer for the run.

Trait Implementations

impl<'a> Debug for JobContext<'a>

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

Formats the value using the given formatter.