Struct TaskGraph 

pub struct TaskGraph {
    pub id: GraphId,
    pub goal: String,
    pub tasks: Vec<TaskNode>,
    pub status: GraphStatus,
    pub default_failure_strategy: FailureStrategy,
    pub default_max_retries: u32,
    pub created_at: String,
    pub finished_at: Option<String>,
    pub durable_save_generation: u32,
}

A directed acyclic graph of tasks to be executed by the orchestrator.

Created by the Planner and driven to completion by the DagScheduler. The tasks vec is the authoritative store; all indices (TaskId) reference positions within it.

Examples

use zeph_orchestration::{TaskGraph, TaskNode, GraphStatus, FailureStrategy};

let mut graph = TaskGraph::new("build and deploy service");
assert_eq!(graph.status, GraphStatus::Created);
assert_eq!(graph.default_failure_strategy, FailureStrategy::Abort);
assert_eq!(graph.default_max_retries, 3);

Fields

id: GraphId

Unique graph identifier (UUID v4).

goal: String

High-level user goal that was decomposed into this graph.

tasks: Vec<TaskNode>

All task nodes. Index i must satisfy tasks[i].id == TaskId(i).

status: GraphStatus

Current lifecycle status of the graph as a whole.

default_failure_strategy: FailureStrategy

Graph-wide failure strategy applied when a task has no per-task override.

default_max_retries: u32

Graph-wide maximum retry count applied when a task has no per-task override.

created_at: String

ISO-8601 UTC timestamp of graph creation.

finished_at: Option<String>

ISO-8601 UTC timestamp set when the graph reaches a terminal status.

durable_save_generation: u32

Monotonically incrementing counter used by the durable P2 adapter to key each budget snapshot to a unique ExecutionId. Zero on creation; incremented on each journal_budget call so a resumed-then-re-paused plan writes to a fresh execution rather than overwriting the previous one (see zeph-orchestration/src/durable.rs).

Persisted inside the graph blob so it survives across process restarts.

Implementations

impl TaskGraph

pub fn new(goal: impl Into<String>) -> Self

Create a new graph with Created status.

Trait Implementations

impl Clone for TaskGraph

fn clone(&self) -> TaskGraph

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TaskGraph

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TaskGraph

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for TaskGraph

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

where __S: Serializer,

Serialize this value into the given Serde serializer.