Class UML 2.5::OpaqueExpression
Description:
An OpaqueExpression is a ValueSpecification that specifies the computation
of a collection of values either in terms of a UML Behavior or based on
a textual statement in a language other than UML
Direct Superclasses: ValueSpecificationDirect Subclasses: Class Precedence List: OpaqueExpression,
ValueSpecification,
TypedElement,
PackageableElement,
ParameterableElement,
NamedElement,
ElementProperties:
behavior :
Behavior (0 1); -- source
OpaqueExpression body : String (0 *); -- source
OpaqueExpression language : String (0 *); -- source
OpaqueExpression result :
Parameter (0 1); -- source
OpaqueExpression type :
Type (0 1); -- source
TypedElement visibility :
VisibilityKind (0 1); -- source
PackageableElement owningTemplateParameter :
TemplateParameter (0 1); -- source
ParameterableElementThe formal TemplateParameter that owns this ParameterableElement.
Subsets: Element.owner, ParameterableElement.templateParameter
Opposite: TemplateParameter.ownedParameteredElement
templateParameter :
TemplateParameter (0 1); -- source
ParameterableElementThe TemplateParameter that exposes this ParameterableElement as a formal
parameter.
Opposite: TemplateParameter.parameteredElement
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
NamedElementA name that allows the NamedElement to be identified within a hierarchy
of nested Namespaces. It is constructed from the names of the containing
Namespaces starting at the root of the hierarchy and ending with the name
of the NamedElement itself.
{
readonly,
derived}
ownedComment :
Comment (0 *); -- source
Element ownedElement :
Element (0 *); -- source
Element owner :
Element (0 1); -- source
ElementConstraints:
Signature: CMOF_14_3_31() : Boolean;
Description: 14.3 [31] The body of an OpaqueExpression must not be empty.
see also: https://sites.google.com/site/metamodelingantipatterns/catalog/mof/opaque-expression-has-no-or-empty-body
Expression: body->notEmpty() and body <> ''
Operations:
Signature: value() : Integer;
Description: The query value() gives an integer value for an expression intended to
produce one.
Expression: result = (0)
Signature: result.1() : Parameter;
Description: Derivation for OpaqueExpression::/result
Expression: result = (if behavior = null then null else behavior.ownedParameter->first() endif)
Signature: isPositive() : Boolean;
Description: The query isPositive() tells whether an integer expression has a positive
value.
Expression: result = (false)
Signature: isNonNegative() : Boolean;
Description: The query isNonNegative() tells whether an integer expression has a non-negative
value.
Expression: result = (false)
Signature: isIntegral() : Boolean;
Description: The query isIntegral() tells whether an expression is intended to produce
an Integer.
Expression: result = (false)
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