code: @Override
  	public boolean eIsSet(int featureID) {
  		switch (featureID) {
  			case AfplibPackage.ATTRIBUTE_QUALIFIER__SEQ_NUM:
  				return SEQ_NUM_EDEFAULT == null ? seqNum != null : !SEQ_NUM_EDEFAULT.equals(seqNum);
  			case AfplibPackage.ATTRIBUTE_QUALIFIER__LEV_NUM:
  				return LEV_NUM_EDEFAULT == null ? levNum != null : !LEV_NUM_EDEFAULT.equals(levNum);
  		}
  		return super.eIsSet(featureID);
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated