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Home » Modeling » EMF "Technology" (Ecore Tools, EMFatic, etc)  » Simple merge case(Running emf compare from code)
Simple merge case [message #670102] Thu, 12 May 2011 16:42
js Missing name is currently offline js Missing nameFriend
Messages: 73
Registered: July 2009
I have the following scenario:

Model_old : [A,B,C,D]

Model_new : [A,B,C,X]

Now I would like to create:

Model_merged : [A,B,C,D,X]

So basically its a "union" of Model_old and Model_new.

But currently I don't get the 'D' object from Model_old in Model_merged which instead contains:

Model_merged : [A,B,C,X]

Here is the code I use:

   // potentially modifies model2
  public static EObject compare(EObject model1, EObject model2) {
    DiffModel diff = null;
    MatchModel contentMatch = null;
    Map<String, Object> options = new HashMap<String, Object>();
    try {
      // doContentMatch from current model and down
      contentMatch = MatchService.doContentMatch(model1, model2, options);
    } catch (InterruptedException e) {
    diff = DiffService.doDiff(contentMatch, false);
    final List<DiffElement> differences = new ArrayList<DiffElement>(diff.getOwnedElements());
    // This will merge all references to the right model (second argument).
    MergeService.merge(differences, true);
    return model2;

Is it possible (using any diff/compare tools at all) to create this union between two different models?
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