OCL 2.5 RTF Avatar
  1. OMG Issue

OCL25 — Support zero and multiple context invariants

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  • Key: OCL25-5
  • Legacy Issue Number: 19127
  • Status: open  
  • Source: Model Driven Solutions ( Dr. Edward Willink)
  • Summary:

    A.5.1.5 suggests that an invariant may be specified for many contexts. The Complete OCL syntax does not support this.

    Many users like to write grandiose truths:

    context X
    inv: X.allInstances()->...

    These do not use the context and so naively increase the complexity from O(N) to O(N*N).

    Suggest allowing such constraints to be context-less constraints provided by the Package rather than a spurious Classifier.

  • Reported: OCL 2.3.1 — Wed, 27 Nov 2013 05:00 GMT
  • Updated: Thu, 8 Oct 2015 14:11 GMT