* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public void setDataType(DATATYPE newDataType) {
DATATYPE oldDataType = dataType;
dataType = newDataType == null ? DATA_TYPE_EDEFAULT : newDataType;
boolean oldDataTypeESet = dataTypeESet;
dataTypeESet = true;
if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.SET, _40Package.DEFINE_FUNCTION_TYPE__DATA_TYPE, oldDataType, dataType, !oldDataTypeESet));