Struct PreparedCheckpointWitness 

pub struct PreparedCheckpointWitness {
    pub attempt: CheckpointAttempt,
    pub participant_id: u64,
    pub deployment_id: String,
    pub pipeline_identity: PipelineIdentity,
}

One process’s compact evidence that an exact checkpoint attempt reached Prepared.

This is deliberately not a commit signal. A recovery driver must resolve every witness through the immutable checkpoint-outcome authority before allowing the cluster to restart.

Fields

attempt: CheckpointAttempt

One nonzero canonical checkpoint ID, mirrored in both retained fields.

participant_id: u64

Stable logical participant recorded by the prepared manifest.

deployment_id: String

Canonical non-nil deployment UUID recorded by the prepared manifest.

pipeline_identity: PipelineIdentity

Exact logical pipeline and state-ABI identity recorded by the prepared manifest.

Implementations

impl PreparedCheckpointWitness

pub fn new( attempt: CheckpointAttempt, participant_id: u64, deployment_id: String, pipeline_identity: PipelineIdentity, ) -> Result<Self, String>

Construct and validate a compact prepared-checkpoint witness.

Errors

Returns an error when any persisted identity is zero, non-canonical, or unsupported.

pub fn is_canonical(&self) -> bool

Whether all persisted identities have their canonical production shape.

Trait Implementations

impl Clone for PreparedCheckpointWitness

fn clone(&self) -> PreparedCheckpointWitness

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PreparedCheckpointWitness

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for PreparedCheckpointWitness

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for PreparedCheckpointWitness

impl Hash for PreparedCheckpointWitness

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

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 PreparedCheckpointWitness

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for PreparedCheckpointWitness

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 PreparedCheckpointWitness