Class UML 2.4.1::Interface
Description:
Since an interface specifies conformance characteristics, it does not own
detailed behavior specifications. Instead, interfaces may own a protocol
state machine that specifies event sequences and pre/post conditions for
the operations and receptions described by the interface.Interfaces may
include receptions (in addition to operations).An interface is a kind of
classifier that represents a declaration of a set of coherent public features
and obligations. An interface specifies a contract; any instance of a classifier
that realizes the interface must fulfill that contract. The obligations
that may be associated with an interface are in the form of various kinds
of constraints (such as pre- and post-conditions) or protocol specifications,
which may impose ordering restrictions on interactions through the interface.
Direct Superclasses: ClassifierDirect Subclasses: Class Precedence List: Interface,
Classifier,
Namespace,
Type,
PackageableElement,
ParameterableElement,
RedefinableElement,
NamedElement,
TemplateableElement,
ElementProperties:
![](/se-interop/image/down-arrow.png)
nestedClassifier :
Classifier (0 *); -- source
Interface![](/se-interop/image/down-arrow.png)
ownedAttribute :
Property (0 *); -- source
Interface![](/se-interop/image/down-arrow.png)
ownedOperation :
Operation (0 *); -- source
Interface![](/se-interop/image/down-arrow.png)
ownedReception :
Reception (0 *); -- source
Interface![](/se-interop/image/down-arrow.png)
protocol :
ProtocolStateMachine (0 1); -- source
Interface![](/se-interop/image/down-arrow.png)
redefinedInterface :
Interface (0 *); -- source
Interface![](/se-interop/image/down-arrow.png)
attribute :
Property (0 *); -- source
Classifier![](/se-interop/image/down-arrow.png)
collaborationUse :
CollaborationUse (0 *); -- source
Classifier![](/se-interop/image/down-arrow.png)
feature :
Feature (0 *); -- source
Classifier![](/se-interop/image/down-arrow.png)
general :
Classifier (0 *); -- source
Classifier![](/se-interop/image/down-arrow.png)
generalization :
Generalization (0 *); -- source
Classifier![](/se-interop/image/down-arrow.png)
inheritedMember :
NamedElement (0 *); -- source
Classifier![](/se-interop/image/down-arrow.png)
isAbstract : Boolean (1 1); -- source
Classifier![](/se-interop/image/down-arrow.png)
isFinalSpecialization : Boolean (1 1); -- source
Classifier![](/se-interop/image/down-arrow.png)
ownedTemplateSignature :
RedefinableTemplateSignature (0 1); -- source
Classifier![](/se-interop/image/down-arrow.png)
ownedUseCase :
UseCase (0 *); -- source
Classifier![](/se-interop/image/down-arrow.png)
powertypeExtent :
GeneralizationSet (0 *); -- source
Classifier![](/se-interop/image/down-arrow.png)
redefinedClassifier :
Classifier (0 *); -- source
Classifier![](/se-interop/image/down-arrow.png)
representation :
CollaborationUse (0 1); -- source
Classifier![](/se-interop/image/down-arrow.png)
substitution :
Substitution (0 *); -- source
Classifier![](/se-interop/image/down-arrow.png)
templateParameter :
ClassifierTemplateParameter (0 1); -- source
Classifier![](/se-interop/image/down-arrow.png)
useCase :
UseCase (0 *); -- source
Classifier![](/se-interop/image/down-arrow.png)
elementImport :
ElementImport (0 *); -- source
Namespace![](/se-interop/image/down-arrow.png)
importedMember :
PackageableElement (0 *); -- source
Namespace![](/se-interop/image/down-arrow.png)
member :
NamedElement (0 *); -- source
Namespace![](/se-interop/image/right-arrow.png)
ownedMember :
NamedElement (0 *); -- source
NamespaceA collection of NamedElements owned by the Namespace.
{
composite,
readonly}
Derived union with sources: (ownedRule, ownedUseCase, protocol, ownedReception, ownedOperation, ownedAttribute, nestedClassifier)
Subsets: Element.ownedElement, Namespace.member
Opposite: NamedElement.namespace
![](/se-interop/image/down-arrow.png)
ownedRule :
Constraint (0 *); -- source
Namespace![](/se-interop/image/down-arrow.png)
packageImport :
PackageImport (0 *); -- source
Namespace![](/se-interop/image/down-arrow.png)
package :
Package (0 1); -- source
Type![](/se-interop/image/right-arrow.png)
visibility :
VisibilityKind (1 1); -- source
PackageableElementIndicates that packageable elements must always have a visibility, i.e.,
visibility is not optional.
Redefines: NamedElement.visibility
Default value: PUBLIC
![](/se-interop/image/down-arrow.png)
owningTemplateParameter :
TemplateParameter (0 1); -- source
ParameterableElement![](/se-interop/image/down-arrow.png)
isLeaf : Boolean (1 1); -- source
RedefinableElement![](/se-interop/image/down-arrow.png)
redefinedElement :
RedefinableElement (0 *); -- source
RedefinableElement![](/se-interop/image/down-arrow.png)
redefinitionContext :
Classifier (0 *); -- source
RedefinableElement![](/se-interop/image/down-arrow.png)
clientDependency :
Dependency (0 *); -- source
NamedElement![](/se-interop/image/down-arrow.png)
name : String (0 1); -- source
NamedElement![](/se-interop/image/down-arrow.png)
nameExpression :
StringExpression (0 1); -- source
NamedElement![](/se-interop/image/down-arrow.png)
namespace :
Namespace (0 1); -- source
NamedElement![](/se-interop/image/down-arrow.png)
qualifiedName : String (0 1); -- source
NamedElement![](/se-interop/image/down-arrow.png)
templateBinding :
TemplateBinding (0 *); -- source
TemplateableElement![](/se-interop/image/down-arrow.png)
ownedComment :
Comment (0 *); -- source
Element![](/se-interop/image/down-arrow.png)
ownedElement :
Element (0 *); -- source
Element![](/se-interop/image/down-arrow.png)
owner :
Element (0 1); -- source
ElementConstraints:
Signature: visibility() : Boolean;
Description: The visibility of all features owned by an interface must be public.
Expression: self.feature->forAll(f | f.visibility = #public)
Operations:
No additional operations.
Send questions or comments to
[email protected].