Class UML 2.4.1::Activity

Description:

An activity is the specification of parameterized behavior as the coordinated sequencing of subordinate units whose individual elements are actions.

Direct Superclasses: Behavior

Direct Subclasses:

Class Precedence List: Activity, Behavior, Class, EncapsulatedClassifier, StructuredClassifier, BehavioredClassifier, Classifier, Namespace, Type, PackageableElement, ParameterableElement, RedefinableElement, NamedElement, TemplateableElement, Element

Properties:

edge : ActivityEdge (0 *); -- source Activity
group : ActivityGroup (0 *); -- source Activity
isReadOnly : Boolean (1 1); -- source Activity
isSingleExecution : Boolean (1 1); -- source Activity
node : ActivityNode (0 *); -- source Activity
partition : ActivityPartition (0 *); -- source Activity
structuredNode : StructuredActivityNode (0 *); -- source Activity
variable : Variable (0 *); -- source Activity
context : BehavioredClassifier (0 1); -- source Behavior

The classifier that is the context for the execution of the behavior. If the behavior is owned by a BehavioredClassifier, that classifier is the context. Otherwise, the context is the first BehavioredClassifier reached by following the chain of owner relationships. For example, following this algorithm, the context of an entry action in a state machine is the classifier that owns the state machine. The features of the context classifier as well as the elements visible to the context classifier are visible to the behavior.
{readonly, derived}
Subsets: RedefinableElement.redefinitionContext
The spec does not provide a function to compute this derived property!

isReentrant : Boolean (1 1); -- source Behavior

Tells whether the behavior can be invoked while it is still executing from a previous invocation.
Default value: TRUE

ownedParameter : Parameter (0 *); -- source Behavior
ownedParameterSet : ParameterSet (0 *); -- source Behavior
postcondition : Constraint (0 *); -- source Behavior
precondition : Constraint (0 *); -- source Behavior
redefinedBehavior : Behavior (0 *); -- source Behavior
specification : BehavioralFeature (0 1); -- source Behavior
extension : Extension (0 *); -- source Class
isAbstract : Boolean (1 1); -- source Class
isActive : Boolean (1 1); -- source Class
nestedClassifier : Classifier (0 *); -- source Class
ownedAttribute : Property (0 *); -- source Class
ownedOperation : Operation (0 *); -- source Class
ownedReception : Reception (0 *); -- source Class
superClass : Class (0 *); -- source Class
ownedPort : Port (0 *); -- source EncapsulatedClassifier
ownedConnector : Connector (0 *); -- source StructuredClassifier
part : Property (0 *); -- source StructuredClassifier
role : ConnectableElement (0 *); -- source StructuredClassifier
classifierBehavior : Behavior (0 1); -- source BehavioredClassifier
interfaceRealization : InterfaceRealization (0 *); -- source BehavioredClassifier
ownedBehavior : Behavior (0 *); -- source BehavioredClassifier
attribute : Property (0 *); -- source Classifier
collaborationUse : CollaborationUse (0 *); -- source Classifier
feature : Feature (0 *); -- source Classifier
generalization : Generalization (0 *); -- source Classifier
inheritedMember : NamedElement (0 *); -- source Classifier
isFinalSpecialization : Boolean (1 1); -- source Classifier
ownedTemplateSignature : RedefinableTemplateSignature (0 1); -- source Classifier
ownedUseCase : UseCase (0 *); -- source Classifier
powertypeExtent : GeneralizationSet (0 *); -- source Classifier
redefinedClassifier : Classifier (0 *); -- source Classifier
representation : CollaborationUse (0 1); -- source Classifier
substitution : Substitution (0 *); -- source Classifier
templateParameter : ClassifierTemplateParameter (0 1); -- source Classifier
useCase : UseCase (0 *); -- source Classifier
elementImport : ElementImport (0 *); -- source Namespace
importedMember : PackageableElement (0 *); -- source Namespace
member : NamedElement (0 *); -- source Namespace
ownedMember : NamedElement (0 *); -- source Namespace
ownedRule : Constraint (0 *); -- source Namespace
packageImport : PackageImport (0 *); -- source Namespace
package : Package (0 1); -- source Type
visibility : VisibilityKind (1 1); -- source PackageableElement
owningTemplateParameter : TemplateParameter (0 1); -- source ParameterableElement

The formal template parameter that owns this element.
Subsets: Element.owner, ParameterableElement.templateParameter
Opposite: TemplateParameter.ownedParameteredElement

isLeaf : Boolean (1 1); -- source RedefinableElement
redefinedElement : RedefinableElement (0 *); -- source RedefinableElement
redefinitionContext : Classifier (0 *); -- source RedefinableElement
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
templateBinding : TemplateBinding (0 *); -- source TemplateableElement
ownedComment : Comment (0 *); -- source Element
ownedElement : Element (0 *); -- source Element
owner : Element (0 1); -- source Element

Constraints:

Signature: no_supergroups() : Boolean;
Description: The groups of an activity have no supergroups.
Expression: true

Signature: autonomous() : Boolean;
Description: An activity cannot be autonomous and have a classifier or behavioral feature context at the same time.
Expression: true

Signature: activity_parameter_node() : Boolean;
Description: The nodes of the activity must include one ActivityParameterNode for each parameter.
Expression: true

Operations:

No additional operations.

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