Struct ReducerContext

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pub struct ReducerContext {
    pub name: String,
    pub caller_identity: Identity,
    pub caller_connection_id: ConnectionId,
    pub timestamp: Timestamp,
    pub arg_bsatn: Bytes,
}

Expand description

If an ExecutionContext is a reducer context, describes the reducer.

Note that this information is written to persistent storage.

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§name: String

The name of the reducer.

§caller_identity: Identity

The Identity of the caller.

§caller_connection_id: ConnectionId

The ConnectionId of the caller.

§timestamp: Timestamp

The timestamp of the reducer invocation.

§arg_bsatn: Bytes

The BSATN-encoded arguments given to the reducer.

Note that Bytes is a refcounted value, but the memory it points to can be large-ish. The reference should be freed as soon as possible.

Trait Implementations§

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impl Clone for ReducerContext

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fn clone(&self) -> ReducerContext

Returns a duplicate of the value. Read more

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

Performs copy-assignment from source. Read more

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impl From<&ReducerContext> for Inputs

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fn from(_: &ReducerContext) -> Self

Converts to this type from the input type.

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impl TryFrom<&Inputs> for ReducerContext

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type Error = DecodeError

The type returned in the event of a conversion error.

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fn try_from(inputs: &Inputs) -> Result<Self, Self::Error>

Performs the conversion.

Auto Trait Implementations§

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impl UnwindSafe for ReducerContext

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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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