code: @Override
  	public boolean eIsSet(int featureID) {
  		switch (featureID) {
  			case AfplibPackage.FONT_DESCRIPTOR_SPECIFICATION__FT_WT_CLASS:
  				return FT_WT_CLASS_EDEFAULT == null ? ftWtClass != null : !FT_WT_CLASS_EDEFAULT.equals(ftWtClass);
  			case AfplibPackage.FONT_DESCRIPTOR_SPECIFICATION__FT_WD_CLASS:
  				return FT_WD_CLASS_EDEFAULT == null ? ftWdClass != null : !FT_WD_CLASS_EDEFAULT.equals(ftWdClass);
  			case AfplibPackage.FONT_DESCRIPTOR_SPECIFICATION__FT_HEIGHT:
  				return FT_HEIGHT_EDEFAULT == null ? ftHeight != null : !FT_HEIGHT_EDEFAULT.equals(ftHeight);
  			case AfplibPackage.FONT_DESCRIPTOR_SPECIFICATION__FT_WIDTH:
  				return FT_WIDTH_EDEFAULT == null ? ftWidth != null : !FT_WIDTH_EDEFAULT.equals(ftWidth);
  			case AfplibPackage.FONT_DESCRIPTOR_SPECIFICATION__FT_DS_FLAGS:
  				return FT_DS_FLAGS_EDEFAULT == null ? ftDsFlags != null : !FT_DS_FLAGS_EDEFAULT.equals(ftDsFlags);
  			case AfplibPackage.FONT_DESCRIPTOR_SPECIFICATION__FT_US_FLAGS:
  				return FT_US_FLAGS_EDEFAULT == null ? ftUsFlags != null : !FT_US_FLAGS_EDEFAULT.equals(ftUsFlags);
  		}
  		return super.eIsSet(featureID);
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated