EventPayload🔗

Defines the necessary information of an event instance sent out or received.

This element is experimental and therefore may be subject to change or may be removed completely in future versions of the meta-model.

Properties 🔗

source: Reference 🔗: Reference to the source event element.
sourceSemanticId: Optional[Reference] 🔗: HasSemantics.semanticId of the source event element, if available

It is recommended to use an external reference.
observableReference: Reference 🔗: Reference to the referable, which defines the scope of the event.
observableSemanticId: Optional[Reference] 🔗: HasSemantics.semanticId of the referable which defines the scope of the event, if available.

It is recommended to use an external reference.
topic: Optional[MessageTopicType] 🔗: Information for the outer message infrastructure to schedule the event for the respective communication channel.
subjectId: Optional[Reference] 🔗: Subject, who/which initiated the creation.

This is an external reference.
timeStamp: DateTimeUtc 🔗: Timestamp in UTC, when this event was triggered.
payload: Optional[BlobType] 🔗: Event-specific payload.

Invariants 🔗

Source must be a model reference to an Event element.

(
    IsModelReferenceTo(
        self.source,
        KeyTypes.EventElement
    )
    or IsModelReferenceTo(
        self.source,
        KeyTypes.BasicEventElement
    )
)

Observable reference must be a model reference to a referable.

IsModelReferenceToReferable(
    self.observableReference
)