Struct WorkflowCheckpoint 

pub struct WorkflowCheckpoint {
    pub schema_version: u32,
    pub workflow_id: String,
    pub steps: Vec<WorkflowStepRecord>,
    pub checkpoint_ms: u64,
}

Snapshot of a workflow’s completed steps at a step boundary.

(StepOutcome contains a serde_json::Value, which is not Eq, so this derives PartialEq only.)

Fields

schema_version: u32

Schema version — see WORKFLOW_CHECKPOINT_SCHEMA_VERSION.

workflow_id: String

Logical workflow identifier the checkpoint is keyed by.

steps: Vec<WorkflowStepRecord>

The steps completed so far. A resuming run skips these and re-dispatches only the rest.

checkpoint_ms: u64

Wall-clock timestamp when the checkpoint was written (Unix epoch ms).

Implementations

impl WorkflowCheckpoint

pub fn from_completed( workflow_id: impl Into<String>, completed: &HashMap<String, StepOutcome>, checkpoint_ms: u64, ) -> Self

Build a checkpoint from a map of completed task_id -> outcome.

pub fn completed(&self) -> HashMap<String, StepOutcome>

The completed steps as a task_id -> outcome map.

pub fn ensure_loadable(&self) -> Result<()>

Reject a checkpoint written by a newer, incompatible schema version than this build understands — mirrors LoopCheckpoint::ensure_loadable. Field additions are absorbed by #[serde(default)], so older (incl. pre-v1 0) checkpoints always remain loadable.

Trait Implementations

impl Clone for WorkflowCheckpoint

fn clone(&self) -> WorkflowCheckpoint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WorkflowCheckpoint

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for WorkflowCheckpoint

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for WorkflowCheckpoint

fn eq(&self, other: &WorkflowCheckpoint) -> 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 WorkflowCheckpoint

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 WorkflowCheckpoint