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Validation-Error "An object may not circularly contain itself" validating an gmf-diagram [message #556745]

Thu, 02 September 2010 13:59

Markus Oley

Messages: 304
Registered: July 2009
Location: Germany

Senior Member

HI to all,

I want to merge our modeling framework, which is based on xtext, gmf and emf, to helios.

If I call the xtextbuilder with an diagram, I get an error-marker with the text written in the title.

So I debugged and noticed, that the method EObjectValidator#validate(EClass eClass, EObject eObject, DiagnosticChain diagnostics, Map<Object, Object> context) is called twice, because
the class CompositeEValidator holds the following three delegates in getContents()

1. (org.eclipse.xtext.validation.impl.ConcreteSyntaxEValidator) org.eclipse.xtext.validation.impl.ConcreteSyntaxEValidator
2. (org.eclipse.emf.ecore.util.EcoreValidator) org.eclipse.emf.ecore.util.EcoreValidator
3. (org.eclipse.xtext.validation.CompositeEValidator$1) org.eclipse.xtext.validation.CompositeEValidator

Both CompositeEValidator (3) and ECoreValidator (2) call the method that does this eval things Smile