QVT 1.4 RTF Avatar
  1. OMG Issue

QVT14 — Inconsistent multiple inheritance

Open Closed All
  • Key: QVT14-11
  • Legacy Issue Number: 18912
  • Status: open  
  • Source: Model Driven Solutions ( Dr. Edward Willink)
  • Summary:

    The pragmatic decision to define Module/Transformation as inheriting both Package and Class violates UML inheritance.

    For a Package: self.nestingPackage.nestedPackages->includes(self)

    For a Class:
    self.package.ownedTypes->includes(self)

    But self cannot have two containers.

    The problem is easily resolved by extending only Package and adding those Class features that are actually required.

  • Reported: QVT 1.1 — Mon, 16 Sep 2013 04:00 GMT
  • Updated: Tue, 22 Dec 2015 15:31 GMT