JavaFX : tableview won't populate from database (ucanaccess) - javafx

Question

My application contains a tabpane, each tab is a nested fxml with controller included.
Each fxml file have a tableview that retrieve data from a microsoft access database.
Some of the tables that only have string columns work and get populated but another one(Demandes) that have a integer column and a localdate column wont populate.and i don't know what's causing the problem.
here the nested controller of "Demandes" tab:
public class DemandesController{
#FXML
private TableView<Demande> demandesTable;
#FXML
private TableColumn<Demande, Integer> numColumn;
#FXML
private TableColumn<Demande, String> societeColumn;
#FXML
private TableColumn<Demande, LocalDate> dateDemandeColumn;
#FXML
private TableColumn<Demande, LocalDate> dateSignatureColumn;
#FXML
private TableColumn<Demande, String> villeColumn;
private ObservableList<Demande> demandes = FXCollections.observableArrayList();
private MainApp mainApp;
String BD_URL = mainApp.getBdUrl();
public DemandesController(){
}
public ObservableList<Demande> getBulletins(){
return demandes;
}
#FXML
private void initialize() {
getDemandesData();
numColumn.setCellValueFactory(cellData -> cellData.getValue().numDemandeProperty().asObject());
societeColumn.setCellValueFactory(cellData -> cellData.getValue().societeProperty());
dateDemandeColumn.setCellValueFactory(cellData -> cellData.getValue().dateDemandeProperty());
dateSignatureColumn.setCellValueFactory(cellData -> cellData.getValue().dateSignatureProperty());
villeColumn.setCellValueFactory(cellData -> cellData.getValue().villeProperty());
}
public void setMainApp(MainApp mainApp){
this.mainApp = mainApp;
demandesTable.setItems(getBulletins());
}
public void getDemandesData(){
Task task = new Task<Void>() {
#Override
protected Void call() throws Exception {
try (Connection con = DriverManager.getConnection(BD_URL)) {
Statement stmt = con.createStatement();
ResultSet res = stmt.executeQuery("SELECT * FROM [Demandes-tab]");
while (res.next()) {
int numDemande = res.getInt(1);
String societe = res.getString(2);
LocalDate dateDemande = res.getDate(3)
.toInstant().atZone(ZoneId.systemDefault()).toLocalDate();
LocalDate dateSignature = res.getDate(4)
.toInstant().atZone(ZoneId.systemDefault()).toLocalDate();
String ville = res.getString(5);
demandes.add(new Demande(numDemande,societe,dateDemande,
dateSignature,ville));
}
}return null;
}
};
new Thread(task).start();
} }
and the parent controller that initialise the nested fxmls and controllers :
public class TabsController{
private MainApp mainApp;
#FXML private AnchorPane Bulletins;
#FXML private BulletinsController BulletinsController;
#FXML private AnchorPane Demandes;
#FXML private DemandesController DemandesController;
#FXML private AnchorPane Personneltest;
#FXML private PersonnelController PersonneltestController;
#FXML private AnchorPane Personnel;
#FXML private PersonnelController PersonnelController;
#FXML private AnchorPane Produit;
#FXML private ProduitController ProduitController;
#FXML private AnchorPane Societes;
#FXML private SocietesController SocietesController;
#FXML
private void initialize() {
}
public void setMainApp(MainApp mainApp) {
this.mainApp = mainApp;
BulletinsController.setMainApp(mainApp);
PersonneltestController.setMainApp(mainApp);
DemandesController.setMainApp(mainApp);
} }
also this was added in the right place :
<Tab text="Demandes">
<content>
<fx:include fx:id="Demandes" source="Demandes.fxml" />
</content>
</Tab>
if someone can tell me why the tableview won't populate that will be a big help. thank you.
ps: oh also i removed the database url just to see if it matters and nothing changed. does that mean that it doesn't connect to the database at all?