Trait TaskLifecycle

Source

pub trait TaskLifecycle: Send + Sync {
    // Required method
    fn validate_transition(
        &self,
        task: &Task,
        new_status: &TaskStatus,
    ) -> Result<(), PeError>;

    // Provided methods
    fn on_create(&self, _task: &Task) { ... }
    fn on_transition(&self, _task: &Task, _old_status: &TaskStatus) { ... }
    fn on_complete(&self, _task: &Task) { ... }
    fn on_fail(&self, _task: &Task, _error: &str) { ... }
    fn on_cancel(&self, _task: &Task) { ... }
}

Expand description

Lifecycle hooks for task status transitions.

Implement this trait to add custom side effects (event emission, parent auto-completion, metric tracking, etc.).

§Example

use pe_tasks::lifecycle::{TaskLifecycle, DefaultLifecycle};
use pe_tasks::{Task, TaskStatus};

let lifecycle = DefaultLifecycle;
let task = Task::new("Test");
assert!(lifecycle.validate_transition(&task, &TaskStatus::InProgress).is_ok());
assert!(lifecycle.validate_transition(&task, &TaskStatus::Completed).is_err());