Class UML 2.3::ActivityParameterNode

Description:

An activity parameter node is an object node for inputs and outputs to activities.

Direct Superclasses: ObjectNode

Direct Subclasses:

Class Precedence List: ActivityParameterNode, ObjectNode, TypedElement, ActivityNode, RedefinableElement, NamedElement, Element

Properties:

parameter : Parameter (1 1); -- source ActivityParameterNode
inState : State (0 *); -- source ObjectNode
isControlType : Boolean (1 1); -- source ObjectNode
ordering : ObjectNodeOrderingKind (1 1); -- source ObjectNode
selection : Behavior (0 1); -- source ObjectNode
upperBound : ValueSpecification (1 1); -- source ObjectNode

The maximum number of tokens allowed in the node. Objects cannot flow into the node if the upper bound is reached.
{composite}
Subsets: Element.ownedElement
Default value: a LiteralUnlimitedNatural with value (INTERN LiteralUnlimitedNatural UML23)

type : Type (0 1); -- source TypedElement
activity : Activity (0 1); -- source ActivityNode
inGroup : ActivityGroup (0 *); -- source ActivityNode
inInterruptibleRegion : InterruptibleActivityRegion (0 *); -- source ActivityNode
inPartition : ActivityPartition (0 *); -- source ActivityNode
inStructuredNode : StructuredActivityNode (0 1); -- source ActivityNode
incoming : ActivityEdge (0 *); -- source ActivityNode
outgoing : ActivityEdge (0 *); -- source ActivityNode
redefinedNode : ActivityNode (0 *); -- source ActivityNode
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
visibility : VisibilityKind (0 1); -- source NamedElement
ownedComment : Comment (0 *); -- source Element
ownedElement : Element (0 *); -- source Element
owner : Element (0 1); -- source Element

Constraints:

Signature: same_type() : Boolean;
Description: The type of an activity parameter node is the same as the type of its parameter.
Expression: true

Signature: no_outgoing_edges() : Boolean;
Description: Activity parameter object nodes with no outgoing edges and one or more incoming edges must have a parameter with out, inout, or return direction.
Expression: true

Signature: no_incoming_edges() : Boolean;
Description: Activity parameter object nodes with no incoming edges and one or more outgoing edges must have a parameter with in or inout direction.
Expression: true

Signature: no_edges() : Boolean;
Description: An activity parameter node may have all incoming edges or all outgoing edges, but it must not have both incoming and outgoing edges.
Expression: true

Signature: maximum_two_parameter_nodes() : Boolean;
Description: A parameter with direction inout must have at most two activity parameter nodes in an activity, one with incoming flows and one with outgoing flows.
Expression: true

Signature: maximum_one_parameter_node() : Boolean;
Description: A parameter with direction other than inout must have at most one activity parameter node in an activity.
Expression: true

Signature: has_parameters() : Boolean;
Description: Activity parameter nodes must have parameters from the containing activity.
Expression: true

Operations:

No additional operations.

---

Send questions or comments to [email protected].