Class UML 2.3::DurationObservation
Description:
A duration observation is a reference to a duration during an execution. It points out the element(s) in the model to observe and whether the observations are when this model element is entered or when it is exited.Direct Superclasses: ObservationDirect Subclasses: Class Precedence List: DurationObservation, Observation, PackageableElement, ParameterableElement, NamedElement, ElementProperties:
event : NamedElement (1 2); -- source DurationObservation firstEvent : Boolean (0 2); -- source DurationObservation visibility : VisibilityKind (1 1); -- source PackageableElement owningTemplateParameter : TemplateParameter (0 1); -- source ParameterableElement templateParameter : TemplateParameter (0 1); -- source ParameterableElement clientDependency : Dependency (0 *); -- source NamedElement name : String (0 1); -- source NamedElement nameExpression : StringExpression (0 1); -- source NamedElement namespace : Namespace (0 1); -- source NamedElement
qualifiedName : String (0 1); -- source NamedElement A name which allows the NamedElement to be identified within a hierarchy
of nested Namespaces. It is constructed from the names of the containing
namespaces starting at the root of the hierarchy and ending with the name
of the NamedElement itself.{readonly, derived}
ownedComment : Comment (0 *); -- source Element ownedElement : Element (0 *); -- source Element owner : Element (0 1); -- source ElementConstraints:
Signature: first_event_multiplicity() : Boolean;Description: The multiplicity of firstEvent must be 2 if the multiplicity of event is 2. Otherwise the multiplicity of firstEvent is 0.
The OCL used here is not normative.
Editor's notes: Added endif.
Expression:
if (event->size() = 2)
then (firstEvent->size() = 2) else (firstEvent->size() = 0) endifOriginal:
if (event->size() = 2)
then (firstEvent->size() = 2) else (firstEvent->size() = 0)Operations:
No additional operations.Send questions or comments to [email protected].