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ScriptHandle

Struct ScriptHandle 

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pub struct ScriptHandle<P> { /* private fields */ }
Expand description

A typed handle for scheduling a script with specific parameters.

Created by the #[chronon::script] macro. The attribute turns the annotated function into a handle factory (fn nightly_cleanup() -> ScriptHandle<…>) and moves the body to an internal __*_impl entry point used by the executor.

After building a Job, set crate::ScheduleKind / cron fields and upsert via CoordinatorService (Mode 1–2) or RemoteCoordinatorClient (Mode 3).

§Examples

Build a default Job from the macro-generated handle, then upsert it:

use chronon_core::{Job, ScriptHandle};
use serde::Serialize;

#[derive(Serialize)]
struct NightlyCleanupParams {
    retention_days: u32,
}

let handle = ScriptHandle::<NightlyCleanupParams>::new("nightly_cleanup");
let job: Job = handle
    .job_with_params(
        "nightly-job",
        &NightlyCleanupParams {
            retention_days: 7,
        },
    )
    .expect("params serialize");
assert_eq!(job.script_name, "nightly_cleanup");
assert_eq!(job.params_json["retention_days"], 7);

Runnable end-to-end sample: cargo run -p uf-chronon --example script_handle_job --features mem.

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impl<P> ScriptHandle<P>

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pub const fn new(name: &'static str) -> Self

Create a new script handle (typically called by macro-generated code).

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pub const fn name(&self) -> &'static str

Stable script registry name.

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pub fn job(&self, job_name: impl Into<String>) -> Job

Baseline Job pointing at this script (Job::new defaults).

Populate schedule fields (schedule_kind, cron_expr, next_run_at, …) before upserting via the coordinator service or HTTP API.

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impl<P: Serialize> ScriptHandle<P>

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pub fn job_with_params( &self, job_name: impl Into<String>, params: &P, ) -> Result<Job>

Baseline Job with typed params serialized into params_json.

Trait Implementations§

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impl<P: Clone> Clone for ScriptHandle<P>

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fn clone(&self) -> ScriptHandle<P>

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl<P: Debug> Debug for ScriptHandle<P>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<P> Freeze for ScriptHandle<P>

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impl<P> RefUnwindSafe for ScriptHandle<P>
where P: RefUnwindSafe,

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impl<P> Send for ScriptHandle<P>
where P: Send,

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impl<P> Sync for ScriptHandle<P>
where P: Sync,

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impl<P> Unpin for ScriptHandle<P>
where P: Unpin,

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impl<P> UnsafeUnpin for ScriptHandle<P>

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impl<P> UnwindSafe for ScriptHandle<P>
where P: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.