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
OpaqueExpressionSpecifies the languages used to express the textual bodies of the OpaqueExpression.
Languages are matched to body Strings by order. The interpretation of
the body depends on the languages. If the languages are unspecified, they
may be implicit from the expression body or the context.
{
ordered}
result :
Parameter (0 1); -- source
OpaqueExpression type :
Type (0 1); -- source
TypedElement visibility :
VisibilityKind (0 1); -- source
PackageableElement 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
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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