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  1. OMG Issue

QVT13 — QVTr: UML to RDBMS Example Problems

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  • Key: QVT13-4
  • Legacy Issue Number: 11686
  • Status: closed  
  • Source: Siegfried Nolte ( Siegfried Nolte)
  • Summary:

    top relation AssocToFKey { pKey : Key; ... when

    { ...; pKey = destTbl.key; }

    ... } In my opinion that doesn't work. pKey is of type Key, destTbl.key is of type OrderedSet key, isn't it ?
  • Reported: QVT 1.0 — Mon, 26 Nov 2007 05:00 GMT
  • Disposition: Resolved — QVT 1.3
  • Disposition Summary:

    Section: A1.1.1

    top relation AssocToFKey { pKey : Key; ... when

    { ...; pKey = destTbl.key; }

    ... } In my opinion that doesn't work. pKey is of type Key, destTbl.key is of type OrderedSet key, isn't it ?

    Discussion

    Yes. Well at least it's a Collection; the diagram leaves an ambiguity.

    Comparison with the QVTc solution shows that the 'primary' key should be selected, and initialized on creation.

    Loading the example in the Eclipse QVTr editor reveals many more problems.
  • Updated: Tue, 29 Mar 2016 15:09 GMT