Class UML 2.4.1::DurationConstraint
Description:
A duration constraint is a constraint that refers to a duration interval.
Direct Superclasses: IntervalConstraintDirect Subclasses: Class Precedence List: DurationConstraint,
IntervalConstraint,
Constraint,
PackageableElement,
ParameterableElement,
NamedElement,
ElementProperties:
firstEvent : Boolean (0 2); -- source
DurationConstraintThe value of firstEvent[i] is related to constrainedElement[i] (where i
is 1 or 2). If firstEvent[i] is true, then the corresponding observation
event is the first time instant the execution enters constrainedElement[i].
If firstEvent[i] is false, then the corresponding observation event is
the last time instant the execution is within constrainedElement[i]. Default
value is true applied when constrainedElement[i] refers an element that
represents only one time instant.
specification :
DurationInterval (1 1); -- source
DurationConstraint constrainedElement :
Element (0 *); -- source
Constraint context :
Namespace (0 1); -- source
Constraint 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 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 constrainedElement
is 2. Otherwise the multiplicity of firstEvent is 0.
The OCL used here is not normative.Editor's notes: Added endif.
Expression: if (constrainedElement->size() =2)
then (firstEvent->size() = 2) else (firstEvent->size() = 0) endif
Original: if (constrainedElement->size() =2) then (firstEvent->size() = 2) else (firstEvent->size() = 0)
Operations:
No additional operations.
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