|Re: [EMF Compare] don't ignore children of unmatched elements [message #663463 is a reply to message #662693]
||Tue, 05 April 2011 08:21
Registered: March 2011
so I have been thinking about this issue for a couple of days now and trying out various solutions.
My initial idea was to simply add unmatched packages to the mapList anyways and use a programmatically created "mock package" as their match. This would cause an exception eventually, because the mock package doesn't exist in any of the models. Also, this solution didn't work very well with the initial packages' subpackages and their content.
The next idea was when a package cannot be matched to add all its subpackages and classifiers to the notFoundList so they can possibly be matched in the second run. For some reason, this caused some packages to appear as multiple, empty DiffGroups. I am going to investigate this case a little more.
Also, I realized that matching objects whose container/parent could not be matched is pretty tricky because these objects are kinda just "hanging loose" there...
Then my colleague (who is not available any more) implemented a solution where in the preprocessing step he simply inserts packages (without their content) into the models, so that the matching algorithm picks up on their contents. However, I saw that in the matchmodel each of these packages matches with "null", and this reflects in the diff too (I get a DiffGroup around "EObject" and cannot trace the actual object behind it). I don't understand why this happens, because while debugging the matching algorithm these packages were matched just fine...
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