Abstract Class UML 2.5::MultiplicityElement
Description:
A multiplicity is a definition of an inclusive interval of non-negative
integers beginning with a lower bound and ending with a (possibly infinite)
upper bound. A MultiplicityElement embeds this information to specify the
allowable cardinalities for an instantiation of the Element.
Direct Superclasses: ElementDirect Subclasses: Variable,
StructuralFeature,
Pin,
Parameter,
ConnectorEndClass Precedence List: MultiplicityElement,
ElementProperties:
isOrdered : Boolean (1 1); -- source
MultiplicityElement isUnique : Boolean (1 1); -- source
MultiplicityElement lower : Integer (1 1); -- source
MultiplicityElement lowerValue :
ValueSpecification (0 1); -- source
MultiplicityElement upper : UnlimitedNatural (1 1); -- source
MultiplicityElement upperValue :
ValueSpecification (0 1); -- source
MultiplicityElement ownedComment :
Comment (0 *); -- source
ElementThe Comments owned by this Element.
{
composite}
Subsets: Element.ownedElement
ownedElement :
Element (0 *); -- source
Element owner :
Element (0 1); -- source
ElementConstraints:
Signature: CMOF_14_3_13() : Boolean;
Description: 14.3 [13] The values of MultiplicityElement::lowerValue and upperValue must be of kind LiteralInteger
and LiteralUnlimitedNatural respectively
see also: https://sites.google.com/site/metamodelingantipatterns/catalog/mof/multiplicity-element-has-non-integer-lower-value
see also: https://sites.google.com/site/metamodelingantipatterns/catalog/mof/multiplicity-element-has-non-unlimited-natural-upper-value
Expression: lowerValue.oclIsKindOf(LiteralInteger) and upperValue.oclIsKindOf(LiteralUnlimitedNatural)
Operations:
Signature: upperBound() : UnlimitedNatural;
Description: The query upperBound() returns the upper bound of the multiplicity for
a bounded multiplicity as an unlimited natural, which is the unlimitedNaturalValue
of upperValue, if given, and 1, otherwise.
Expression: result = (if (upperValue=null or upperValue.unlimitedValue()=null) then 1 else upperValue.unlimitedValue() endif)
Signature: upper.1() : UnlimitedNatural;
Description: The derived upper attribute must equal the upperBound.
Expression: result = (upperBound())
Signature: lowerBound() : Integer;
Description: The query lowerBound() returns the lower bound of the multiplicity as an
integer, which is the integerValue of lowerValue, if this is given, and
1 otherwise.
Expression: result = (if (lowerValue=null or lowerValue.integerValue()=null) then 1 else lowerValue.integerValue() endif)
Signature: lower.1() : Integer;
Description: The derived lower attribute must equal the lowerBound.
Expression: result = (lowerBound())
Signature: isMultivalued() : Boolean;
Description: The query isMultivalued() checks whether this multiplicity has an upper
bound greater than one.
Expression: result = (upperBound() > 1)
Signature: is(lowerbound : Integer; upperbound : UnlimitedNatural; ) : Boolean;
Description: The operation is determines if the upper and lower bound of the ranges
are the ones given.
Expression: result = (lowerbound = self.lowerBound() and upperbound = self.upperBound())
Signature: includesMultiplicity(M : MultiplicityElement; ) : Boolean;
Description: The query includesMultiplicity() checks whether this multiplicity includes
all the cardinalities allowed by the specified multiplicity.
Expression: result = ((self.lowerBound() <= M.lowerBound()) and (self.upperBound() >= M.upperBound()))
Signature: compatibleWith(other : MultiplicityElement; ) : Boolean;
Description: The operation compatibleWith takes another multiplicity as input. It returns
true if the other multiplicity is wider than, or the same as, self.
Expression: result = ((other.lowerBound() <= self.lowerBound()) and ((other.upperBound() = *) or (self.upperBound() <= other.upperBound())))
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