Class UML 2.5::Expression

Description:

An Expression represents a node in an expression tree, which may be non-terminal or terminal. It defines a symbol, and has a possibly empty sequence of operands that are ValueSpecifications. It denotes a (possibly empty) set of values when evaluated in a context.

Direct Superclasses: ValueSpecification

Direct Subclasses: StringExpression

Class Precedence List: Expression, ValueSpecification, TypedElement, PackageableElement, ParameterableElement, NamedElement, Element

Properties:

operand : ValueSpecification (0 *); -- source Expression

Specifies a sequence of operand ValueSpecifications.
{composite, ordered}
Subsets: Element.ownedElement

symbol : String (0 1); -- source Expression
type : Type (0 1); -- source TypedElement
visibility : VisibilityKind (0 1); -- source PackageableElement

A PackageableElement must have a visibility specified if it is owned by a Namespace. The default visibility is public.
Redefines: NamedElement.visibility
Default value: PUBLIC

owningTemplateParameter : TemplateParameter (0 1); -- source ParameterableElement
templateParameter : TemplateParameter (0 1); -- source ParameterableElement
clientDependency : Dependency (0 *); -- source NamedElement
name : String (0 1); -- source NamedElement
nameExpression : StringExpression (0 1); -- source NamedElement
namespace : Namespace (0 1); -- source NamedElement
qualifiedName : String (0 1); -- source NamedElement
ownedComment : Comment (0 *); -- source Element
ownedElement : Element (0 *); -- source Element
owner : Element (0 1); -- source Element

Constraints:

No additional constraints.

Operations:

No additional operations.

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