Class UML 2.5::LiteralNull
Description:
A LiteralNull specifies the lack of a value.
Direct Superclasses: LiteralSpecificationDirect Subclasses: Class Precedence List: LiteralNull,
LiteralSpecification,
ValueSpecification,
TypedElement,
PackageableElement,
ParameterableElement,
NamedElement,
ElementProperties:
![](/se-interop/image/down-arrow.png?hunchentoot-session=29997%3A664C6F43015D048D84A855B69BEB2195)
type :
Type (0 1); -- source
TypedElement![](/se-interop/image/down-arrow.png?hunchentoot-session=29997%3A664C6F43015D048D84A855B69BEB2195)
visibility :
VisibilityKind (0 1); -- source
PackageableElement![](/se-interop/image/down-arrow.png?hunchentoot-session=29997%3A664C6F43015D048D84A855B69BEB2195)
owningTemplateParameter :
TemplateParameter (0 1); -- source
ParameterableElement![](/se-interop/image/down-arrow.png?hunchentoot-session=29997%3A664C6F43015D048D84A855B69BEB2195)
templateParameter :
TemplateParameter (0 1); -- source
ParameterableElement![](/se-interop/image/down-arrow.png?hunchentoot-session=29997%3A664C6F43015D048D84A855B69BEB2195)
clientDependency :
Dependency (0 *); -- source
NamedElement![](/se-interop/image/down-arrow.png?hunchentoot-session=29997%3A664C6F43015D048D84A855B69BEB2195)
name : String (0 1); -- source
NamedElement![](/se-interop/image/down-arrow.png?hunchentoot-session=29997%3A664C6F43015D048D84A855B69BEB2195)
nameExpression :
StringExpression (0 1); -- source
NamedElement![](/se-interop/image/down-arrow.png?hunchentoot-session=29997%3A664C6F43015D048D84A855B69BEB2195)
namespace :
Namespace (0 1); -- source
NamedElement![](/se-interop/image/down-arrow.png?hunchentoot-session=29997%3A664C6F43015D048D84A855B69BEB2195)
qualifiedName : String (0 1); -- source
NamedElement![](/se-interop/image/down-arrow.png?hunchentoot-session=29997%3A664C6F43015D048D84A855B69BEB2195)
ownedComment :
Comment (0 *); -- source
Element![](/se-interop/image/down-arrow.png?hunchentoot-session=29997%3A664C6F43015D048D84A855B69BEB2195)
ownedElement :
Element (0 *); -- source
Element![](/se-interop/image/down-arrow.png?hunchentoot-session=29997%3A664C6F43015D048D84A855B69BEB2195)
owner :
Element (0 1); -- source
ElementConstraints:
No additional constraints.
Operations:
Signature: isNull() : Boolean;
Description: The query isNull() returns true.
Expression: result = (true)
Signature: isComputable() : Boolean;
Description: The query isComputable() is redefined to be true.
Expression: result = (true)
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