Enum DeliveryGuarantee 

pub enum DeliveryGuarantee {
    AtLeastOnce,
    EffectivelyOnce(EffectivelyOnceMechanism),
}

The end-to-end guarantee a pipeline provides for a given source × sink × config combination.

Deliberately no ExactlyOnce variant — distributed-consensus exactly-once is not achievable here; effectively-once (idempotent at-least-once: each record is observably applied once) is the ceiling, and delivery: exactly_once in config is precisely documented as requesting it.

Variants

AtLeastOnce

A crash between the sink write and the bookmark persist may re-deliver a page. Downstream must tolerate duplicates.

EffectivelyOnce(EffectivelyOnceMechanism)

Idempotent at-least-once: each record is observably applied once.

Trait Implementations

impl Clone for DeliveryGuarantee

fn clone(&self) -> DeliveryGuarantee

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for DeliveryGuarantee

impl Debug for DeliveryGuarantee

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for DeliveryGuarantee

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for DeliveryGuarantee

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

Formats the value using the given formatter.

impl Eq for DeliveryGuarantee

impl PartialEq for DeliveryGuarantee

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for DeliveryGuarantee

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for DeliveryGuarantee