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martin-fleck / cra-ttc2016

The Class Responsibility Assignment Case for the Transformation Tool Contest 2016
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Incorrect syntax of input models #4

Open georghinkel opened 8 years ago

georghinkel commented 8 years ago

For a given feature, the references to other features such as e.g. for data or functional dependencies are specified through index-based references such as e.g. //@features.0. However, the _features _feature of ClassModel is not ordered, so index-based access is not well-defined. This is probably a bug or at least a bad design decision in EMF to allow this and it makes the models have a weired and EMF-specific semantics. Other frameworks (in particular NMF) might take the information whether a feature is ordered more serious and then cannot perform an index access to e.g. a hash set.

This can of course be fixed by setting the features-feature of ClassModel to an ordered reference and I would recommend to change that flag.

manuelWimmer commented 8 years ago

Dear Georg,

we fully agree with your comment. Please feel free to change the ordered flag.