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[EMFCompare] Diff: Deleted attribute from a class [message #1053623]

Mon, 06 May 2013 18:31

Aleksandar Toshovski is currently offline

Aleksandar Toshovski
Messages: 13
Registered: December 2011

Junior Member

I'm comparing two ecore files. When I delete an EAttribute, then I retrieve two differences. I don't understand the second Diff. Why there is a eType change? I was expecting only the first one.

  <eStructuralFeatures xsi:type="ecore:EAttribute" name="name" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EInt"/>


REFERENCE: org.eclipse.emf.ecore.impl.EReferenceImpl@546c585a (name: eStructuralFeatures) (ordered: true, unique: true, lowerBound: 0, upperBound: -1) (changeable: true, volatile: false, transient: false, defaultValueLiteral: null, unsettable: false, derived: false) (containment: true, resolveProxies: false)
VALUE: org.eclipse.emf.ecore.impl.EAttributeImpl@76a9b9c (name: name) (ordered: true, unique: true, lowerBound: 0, upperBound: 1) (changeable: true, volatile: false, transient: false, defaultValueLiteral: null, unsettable: false, derived: false) (iD: false)
KIND: DELETE
SOURCE: LEFT

REFERENCE: org.eclipse.emf.ecore.impl.EReferenceImpl@c5a67c9 (name: eType) (ordered: true, unique: true, lowerBound: 0, upperBound: 1) (changeable: true, volatile: true, transient: false, defaultValueLiteral: null, unsettable: true, derived: false) (containment: false, resolveProxies: true)
VALUE: org.eclipse.emf.ecore.impl.EDataTypeImpl@2c09505f (eProxyURI: http://www.eclipse.org/emf/2002/Ecore#//EInt)
KIND: CHANGE
SOURCE: LEFT

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Re: [EMFCompare] Diff: Deleted attribute from a class [message #1053725 is a reply to message #1053623]

Tue, 07 May 2013 07:56

Cedric Brun
Messages: 330
Registered: July 2009

Senior Member

The eType difference is a sub-difference of the first one. By deleting the EAttribute, you also suppress the fact that eType of this reference targets an EObject. This is needed so that merge will always be consistent. If you are not interested in those you can easily filter them, see org.eclipse.emf.compare.rcp.ui.internal.structuremergeviewer.filters.impl.SubDiffElementsFilter for reference.

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