An element import identifies an element in another package, and allows the element to be referenced using its name without a qualifier.
An element import is defined as a directed relationship between an importing namespace and a packageable element. The name of the packageable element or its alias is to be added to the namespace of the importing namespace. It is also possible to
control whether the imported element can be further imported.
Semantics
An element import adds the name of a packageable element from a package to the importing namespace. It works by reference, which means that it is not possible to add features to the element import itself, but it is possible to modify the referenced element in the namespace from which it was imported. An element import is used to selectively import individual
elements without relying on a package import.
In case of a nameclash with an outer name (an element that is defined in an enclosing namespace is available using its unqualified name in enclosed namespaces) in the importing namespace, the outer name is hidden by an element import, and the unqualified name refers to the imported element. The outer name can be accessed using its qualified name. If more than one element with the same name would be imported to a namespace as a consequence of element imports or package imports, the names of the imported elements must be qualified in order to be used and the elements are not added to the importing namespace. If the name of an imported element is the same as the name of an element owned by the importing namespace, the name of the imported element must be qualified in order to be used and is not added to the importing
namespace.
An imported element can be further imported by other namespaces using either element or member imports.
The visibility of the ElementImport may be either the same or more restricted than that of the imported element.
ModelElement.Name: Specifies the name that should be added to the namespace of the importing Pack-age in lieu of the name of the imported PackagableElement. The aliased name must not clash with any other member name in the importing Package. By default, no alias is used.
Classes parentes :
Diagrammes de classes : Associations : Attributs :