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DecisionLedger

Struct DecisionLedger 

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pub struct DecisionLedger<C, A> { /* private fields */ }
Expand description

Bounded pending decisions plus bounded completed tombstones.

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impl<C, A> DecisionLedger<C, A>

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pub fn new(config: DecisionLedgerConfig) -> Result<Self, DecisionLedgerError>

Create an empty ledger with explicit capacity bounds.

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pub fn register( &mut self, decision: PendingDecision<C, A>, ) -> Result<DecisionReceipt, DecisionLedgerError>

Register immutable decision facts, accepting exact idempotent replay.

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pub fn apply_feedback( &mut self, outcome: DecisionOutcome<A>, ) -> Result<FeedbackStatus, DecisionLedgerError>

Validate and apply delayed feedback transactionally.

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pub fn pending(&self, id: DecisionId) -> Option<&PendingDecision<C, A>>

Return pending decision facts without updating state.

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pub fn completed(&self, id: DecisionId) -> Option<&CompletedDecision<C, A>>

Return a completed tombstone without updating state.

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pub fn pending_len(&self) -> usize

Number of incomplete decisions.

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pub fn completed_len(&self) -> usize

Number of retained completed tombstones.

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pub fn validate(&self) -> Result<(), RillError>

Validate all feature-independent structural and bounded-value invariants.

This is available even when the optional serde feature is disabled; [ValidateState] delegates to the same checks when serde persistence is enabled.

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pub fn clear_expired(&mut self, now: u64) -> Vec<DecisionId>

Explicitly clear decisions whose expiry is strictly before now.

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pub fn clear_completed_before(&mut self, before: u64) -> Vec<DecisionId>

Explicitly clear tombstones observed strictly before before.

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pub fn validate_state_with<FC, FA>( &self, validate_context: FC, validate_action: FA, ) -> Result<(), RillError>
where FC: FnMut(&C) -> Result<(), RillError>, FA: FnMut(&A) -> Result<(), RillError>,

Validate structural invariants and caller-owned context/action state.

Trait Implementations§

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impl<C: Clone, A: Clone> Clone for DecisionLedger<C, A>

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fn clone(&self) -> DecisionLedger<C, A>

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<C: Debug, A: Debug> Debug for DecisionLedger<C, A>

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

Formats the value using the given formatter. Read more
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impl<C: PartialEq, A: PartialEq> PartialEq for DecisionLedger<C, A>

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fn eq(&self, other: &DecisionLedger<C, A>) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl<C: PartialEq, A: PartialEq> StructuralPartialEq for DecisionLedger<C, A>

Auto Trait 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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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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> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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impl<T> Same for T

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type Output = T

Should always be Self
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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.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V