Class UML 2.4.1::ExtensionPoint

Description:

An extension point identifies a point in the behavior of a use case where that behavior can be extended by the behavior of some other (extending) use case, as specified by an extend relationship.

Direct Superclasses: RedefinableElement

Direct Subclasses:

Class Precedence List: ExtensionPoint, RedefinableElement, NamedElement, Element

Properties:

useCase : UseCase (1 1); -- source ExtensionPoint
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

The string expression used to define the name of this named element.
{composite}
Subsets: Element.ownedElement

namespace : Namespace (0 1); -- source NamedElement
qualifiedName : String (0 1); -- source NamedElement
visibility : VisibilityKind (0 1); -- source NamedElement

Determines where the NamedElement appears within different Namespaces within the overall model, and its accessibility.

ownedComment : Comment (0 *); -- source Element
ownedElement : Element (0 *); -- source Element
owner : Element (0 1); -- source Element

Constraints:

Signature: must_have_name() : Boolean;
Description: An ExtensionPoint must have a name.
Expression: self.name->notEmpty ()

Operations:

No additional operations.

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