Struct NodeSpec 

pub struct NodeSpec {
    pub runs: NodeId,
    pub input: Value,
    pub label: Option<String>,
}

A node to create while the run is in flight.

The unit of dynamic fan-out: a step that discovers it has N things to do emits N specs, and the runtime runs them. There is no way to pre-declare this in a static plan, which is why an orchestrator-workers shape cannot be expressed by topology alone.

Fields

runs: NodeId

Which registered step or filter to run.

input: Value

The input it receives.

label: Option<String>

Suffix distinguishing this instance from its siblings.

Implementations

impl NodeSpec

pub fn new(runs: impl Into<NodeId>, input: Value) -> Self

A spec for one spawned instance of runs, unlabelled.

pub fn with_label(self, label: impl Into<String>) -> Self

Name this instance, so siblings spawned from the same node stay tellable apart in events and the journal.

Trait Implementations

impl Clone for NodeSpec

fn clone(&self) -> NodeSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NodeSpec

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for NodeSpec

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for NodeSpec

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

where __S: Serializer,

Serialize this value into the given Serde serializer.