UML 1.4 MAILINGLIST Avatar
  1. OMG Issue

UML14 — Question about Enumeration and EnumerationLiteral

  • Key: UML14-547
  • Legacy Issue Number: 7379
  • Status: closed  
  • Source: Red Hat ( Randall Hauch)
  • Summary:

    Enumeration is a subtype of DataType, and DataType allows both Properties and Operations. And since Enumeration has no additional constraints, this means that Enumeration also allows owned Property and Operation instances. Is there a reason why this is so? I would have expected an OCL constraint that limited the owned members of Enumeration to be only EnumerationLiteral instances.

    EnumerationLiteral is a subtype of InstanceSpecification, which itself is a subtype of PackageableElement. Because Package and own any number of PackageableElements, Package can actually own EnumerationLiteral. Is there a reason why this is so? The sematics talk about EnumerationLiteral being in the scope of an Enumeration, but it is somewhat vague about whether that is a constraint (there are no additional constraints). I would have expected an OCL constraint stating that EnumerationLiteral is only valid in the context of an Enumeration.

  • Reported: XMI 2.0 — Thu, 20 May 2004 04:00 GMT
  • Disposition: Resolved — UML 1.4.2
  • Disposition Summary:

    No Data Available

  • Updated: Fri, 6 Mar 2015 20:58 GMT