Struct TaskInstance 

pub struct TaskInstance {
    pub id: InstanceId,
    pub task_id: TaskId,
    pub scheduled_at: DateTime<Utc>,
    pub status: TaskStatus,
    pub claimed_by: Option<NodeId>,
    pub claim_version: u64,
    pub started_at: Option<DateTime<Utc>>,
    pub completed_at: Option<DateTime<Utc>>,
    pub result: Option<Bytes>,
    pub error: Option<String>,
    pub attempt: u32,
}

Task instance - a single execution of a task.

Fields

id: InstanceId

Unique identifier for this instance.

task_id: TaskId

The task this instance belongs to.

scheduled_at: DateTime<Utc>

Scheduled execution time.

status: TaskStatus

Current status.

claimed_by: Option<NodeId>

Node that claimed this instance.

claim_version: u64

Version for optimistic locking.

started_at: Option<DateTime<Utc>>

Actual start time.

completed_at: Option<DateTime<Utc>>

Completion time.

result: Option<Bytes>

Result data (if successful).

error: Option<String>

Error message (if failed).

attempt: u32

Current attempt number.

Implementations

impl TaskInstance

pub fn new(task_id: TaskId, scheduled_at: DateTime<Utc>) -> TaskInstance

Create a new pending task instance.

pub fn is_ready(&self) -> bool

Check if this instance is ready to execute.

pub fn can_retry(&self, policy: &RetryPolicy) -> bool

Check if this instance can be retried.

Trait Implementations

impl Clone for TaskInstance

fn clone(&self) -> TaskInstance

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TaskInstance

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TaskInstance

fn deserialize<__D>( __deserializer: __D, ) -> Result<TaskInstance, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for TaskInstance

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

where __S: Serializer,

Serialize this value into the given Serde serializer.