Struct Checkpoint 

pub struct Checkpoint { /* private fields */ }

A serializable snapshot of workflow progress.

Stores which steps have completed and their outputs, allowing a workflow to be resumed from the last checkpoint after a crash.

Implementations

impl Checkpoint

pub fn new() -> Self

Creates an empty checkpoint.

pub fn mark_completed(&mut self, step_id: &str, output: StepOutput)

Marks a step as completed with its output.

pub fn is_completed(&self, step_id: &str) -> bool

Returns true if the step has been completed.

pub fn completed_ids(&self) -> Vec<&str>

Returns the IDs of all completed steps.

pub fn output(&self, step_id: &str) -> Option<&StepOutput>

Returns the output of a completed step.

pub fn into_context(self) -> WorkflowContext

Converts this checkpoint into a WorkflowContext for resuming execution.

pub async fn save(&self, path: &Path) -> Result<(), WorkflowError>

Saves the checkpoint to a JSON file.

pub async fn load(path: &Path) -> Result<Self, WorkflowError>

Loads a checkpoint from a JSON file.

Trait Implementations

impl Clone for Checkpoint

fn clone(&self) -> Checkpoint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Checkpoint

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

Formats the value using the given formatter.

impl Default for Checkpoint

fn default() -> Checkpoint

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Checkpoint

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Checkpoint

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

where __S: Serializer,

Serialize this value into the given Serde serializer.