Struct Checkpoint 

pub struct Checkpoint {
    pub id: u64,
    pub workflow_id: String,
    pub timestamp_secs: u64,
    pub completed_tasks: Vec<String>,
    pub running_tasks: Vec<String>,
    pub state_data: HashMap<String, String>,
    pub label: Option<String>,
}

A snapshot of workflow execution state at a point in time.

Fields

id: u64

Unique checkpoint identifier.

workflow_id: String

ID of the workflow this checkpoint belongs to.

timestamp_secs: u64

Unix timestamp (seconds) when the checkpoint was taken.

completed_tasks: Vec<String>

IDs of tasks that had completed at checkpoint time.

running_tasks: Vec<String>

IDs of tasks that were running at checkpoint time.

state_data: HashMap<String, String>

Arbitrary key-value state to persist (e.g. intermediate outputs).

label: Option<String>

Human-readable label (optional).

Implementations

impl Checkpoint

pub fn new(id: u64, workflow_id: impl Into<String>) -> Self

Creates a new checkpoint with the current timestamp.

pub fn set_state(&mut self, key: impl Into<String>, value: impl Into<String>)

Sets a state key-value pair.

pub fn get_state(&self, key: &str) -> Option<&String>

Gets a state value by key.

pub fn is_task_completed(&self, task_id: &str) -> bool

Returns true if a given task was completed at this checkpoint.

pub fn task_count(&self) -> usize

Returns the total number of tasks (completed + running).

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<'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 PartialEq for Checkpoint

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

Equality operator ==.

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

Inequality operator !=.

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.

impl StructuralPartialEq for Checkpoint