Krill SDK/krill.zone.shared.krillapp.executor.calculation/CalculationEngineNodeMetaData

CalculationEngineNodeMetaData

@Serializable

data class CalculationEngineNodeMetaData(val sources: List<NodeIdentity> = emptyList(), val name: String = this::class.simpleName!!, val formula: String = "", val inputs: List<NodeIdentity> = emptyList(), val snapshot: Snapshot = Snapshot(), val invocationTriggers: List<InvocationTrigger> = emptyList(), val nodeAction: NodeAction = NodeAction.EXECUTE, val error: String = "") : SourceMetaData(source)

Payload for a Calculation executor node.

Constructors

constructor(sources: List<NodeIdentity> = emptyList(), name: String = this::class.simpleName!!, formula: String = "", inputs: List<NodeIdentity> = emptyList(), snapshot: Snapshot = Snapshot(), invocationTriggers: List<InvocationTrigger> = emptyList(), nodeAction: NodeAction = NodeAction.EXECUTE, error: String = "")

Properties

error

open override val error: String

Last known error message for this node, or empty string when healthy.

formula

val formula: String

Free-form formula string evaluated by the server's calculation engine.

inputs

open override val inputs: List<NodeIdentity>

DOUBLE DataPoints referenced by formula (bracket tokens [hostId:nodeId]). Read at evaluation time only — NOT invocation sources (invocation is wired via sources / the Sources tab).

invocationTriggers

open override val invocationTriggers: List<InvocationTrigger>

The set of InvocationTriggers configured to wake this node. The node processor checks the incoming event against this list before doing any work. An empty list means "never auto-fire" — only manual execution.

name

val name: String

Display name; defaults to the class's simple name on creation.

nodeAction

open override val nodeAction: NodeAction

The action this node performs when it fires. Defaults to NodeAction.EXECUTE on every concrete implementation so that deserialising a payload that predates this field yields the original behaviour unchanged.

snapshot

open override val snapshot: Snapshot

Last computed value + timestamp. The readable output a DataPoint subscriber pulls when this calc wakes it. null until first compute.

sources

open override val sources: List<NodeIdentity>

Upstream nodes whose values feed this one. For a filter or executor this is the data being read; for a trigger it is the value being watched.