Description
ExtensionEnd is a kind of Property that is always typed by a Stereotype.
An ExtensionEnd is never navigable. If it was navigable, it would be a property of the extended classifier. Since a profile
is not allowed to changed the referenced metamodel, it is not possible to add properties to the extended classifier. As a
consequence, an ExtensionEnd can only be owned by an Extension.
The aggregation of an ExtensionEnd is always composite.
The default multiplicity of an ExtensionEnd is 0..1.
Attributes
No additional attributes.
Associations
·
type: Stereotype [1]   |
References the type of the ExtensionEnd. Note that this association restricts the possible types of an ExtensionEnd to only be Stereotypes. Redefines Property::type. |
Constraints
(self->lowerBound() = 0 or self->lowerBound() = 1) and self->upperBound() = 1
self.aggregation = #composite
Additional Operations
ExtensionEnd::lowerBound() : [Integer];
lowerBound = if lowerValue->isEmpty() then 0 else lowerValue->IntegerValue() endif
Semantics
No additional semantics.
Notation
No additional notation.
Examples
See "Extension (from Profiles)".
Changes from UML 1.4
ExtensionEnd did not exist as a metaclass in UML 1.4. See "Extension (from Profiles)" for further details.