@Override public SettingDelegate createSettingDelegate(EStructuralFeature eStructuralFeature) { if (eStructuralFeature == TextualCommonsPackage.Literals.UML_REFERENCING_ELEMENT__REFERENCED_ELEMENT) { return new DuplicateFilteringInternalSettingDelegateSingleEObjectResolving( (EClass) eStructuralFeature.getEType(), eStructuralFeature); } return null; }