Struct IdempotencyKey 

pub struct IdempotencyKey(/* private fields */);

Partition-scoped idempotency key for retry-safe EngineBackend::suspend.

See RFC-013 §2.2 — when set on SuspendArgs::idempotency_key, the backend dedups the call on (partition, execution_id, idempotency_key) and a second suspend with the same triple returns the first call’s SuspendOutcome verbatim. Absent a key, suspend is NOT retry- idempotent; callers must describe-and-reconcile per §3.1.

Follows the UsageDimensions::dedup_key pattern — opaque to the engine, byte-compared at the partition scope.

Implementations

impl IdempotencyKey

pub fn new(key: impl Into<String>) -> IdempotencyKey

Construct from any stringy input. Empty strings are accepted; the backend treats an empty key as “no dedup” at the serialize step so Some(IdempotencyKey::new("")) is functionally the same as None.

pub fn as_str(&self) -> &str

Borrow the underlying string.

Trait Implementations

impl Clone for IdempotencyKey

fn clone(&self) -> IdempotencyKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IdempotencyKey

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for IdempotencyKey

fn deserialize<__D>( __deserializer: __D, ) -> Result<IdempotencyKey, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for IdempotencyKey

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

Formats the value using the given formatter.

impl Hash for IdempotencyKey

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for IdempotencyKey

fn eq(&self, other: &IdempotencyKey) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for IdempotencyKey

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for IdempotencyKey

impl StructuralPartialEq for IdempotencyKey