Cześć,

Stworzyłem mój TableModel i chcę odświeżyć JTable po dodaniu nowego wiersza. Co należy dodać do słuchacza, aby „odświeżyć” JTable?

public class MyTableModel implements TableModel  {
    private Set<TableModelListener> listeners = new HashSet<TableModelListener>();

    //List<Staff> staffs = Factory.getInstance().getStaffDAO().getAllStaff();
    private List<Staff> staffs;

    public MyTableModel(List<Staff> staffs){
        this.staffs = staffs;
    }

    @Override
    public int getRowCount() {
        return staffs.size();
    }

    @Override
    public int getColumnCount() {
        return 5;  
    }

    @Override
    public String getColumnName(int columnIndex) {
        switch (columnIndex){
            case 0:
                return "First Name";
            case 1:
                return "Second Name";
            case 2:
                return "Date";
            case 3:
                return "Position";
            case 4:
                return "Salary";
        }
        return "";  
    }

    @Override
    public Class<?> getColumnClass(int columnIndex) {
        return Object.class;  
    }

    @Override
    public boolean isCellEditable(int rowIndex, int columnIndex) {
        return true;  
    }

    @Override
    public Object getValueAt(int rowIndex, int columnIndex) {
        Staff staff = staffs.get(rowIndex);
        switch (columnIndex){
            case 0:
                return staff.getName();
            case 1:
                return staff.getSurname();
            case 2:
                return staff.getDate();
            case 3:
                return staff.getPosition();
            case 4:
                return staff.getSalary();
        }
        return "";  
    }

    @Override
    public void setValueAt(Object aValue, int rowIndex, int columnIndex) {
    }

    @Override
    public void addTableModelListener(TableModelListener l) {
    }

    @Override
    public void removeTableModelListener(TableModelListener l) {
    }
}

Oto mój słuchacz mojego przycisku Dodaj wiersz:

 @Override
    public void actionPerformed(ActionEvent e) {
        Staff staff = new Staff();
        staff.setName(JOptionPane.showInputDialog("Enter First Name"));
        staff.setSurname(JOptionPane.showInputDialog("Enter Second Name"));
        staff.setDate(JOptionPane.showInputDialog("Enter Date"));
        staff.setPosition(JOptionPane.showInputDialog("Enter Position"));
        staff.setSalary(JOptionPane.showInputDialog("Enter Salary"));
        try {
            Factory.getInstance().getStaffDAO().addStaff(staff);
        } catch (SQLException e1) {
            e1.printStackTrace();  
        }
!!!Here should be some code that will be firing my table after adding new row!!!
}

Próbowałem użyć metody firetabledatachanged () z AbstractTableModel w moim actionPerformed (), ale z unluck, pojawia się ClassCastException.

AKTUALIZACJA 1

WorkPlaceGui.java

public class WorkPlaceGui extends JFrame implements ActionListener {

    AbstractTableModel model;
    JTable jTable;
    JScrollPane jScrollPane;

    public WorkPlaceGui()throws SQLException{


        List<Staff> staffs = Factory.getInstance().getStaffDAO().getAllStaff();
        for(int i = 0; i < 0; i++) {
                staffs.add(new Staff("First Name " + staffs.get(i).getName(), "Second Name " + staffs.get(i).getSurname(), "Date " + staffs.get(i).getDate(), "Position " + staffs.get(i).getPosition(), "Salary " + staffs.get(i).getSalary()));
        }

        model = new MyTableModel(staffs);
        jTable = new JTable(model);
        JButton jBtnAdd = new JButton("Добавить");
        JButton jBtnDel = new JButton("Удалить");
        JButton jBtnUpd = new JButton("Обновить");
        JButton jBtnAdmin = new JButton("Админка");
        JPanel panelNorth = new JPanel();
        JPanel panelCenter = new JPanel();
        JPanel panelSouth = new JPanel();
        jTable.setPreferredScrollableViewportSize(new Dimension(350, 150));
        jScrollPane = new JScrollPane(jTable);


        panelNorth.setLayout(new FlowLayout());
        panelNorth.add(jBtnAdd);
        panelNorth.add(jBtnDel);
        panelNorth.add(jBtnUpd);
        panelNorth.add(jBtnAdmin);
        panelCenter.add(jScrollPane);

        setLayout(new BorderLayout());
        add(panelNorth, BorderLayout.NORTH);
        add(panelCenter, BorderLayout.CENTER);

        jBtnAdd.addActionListener(this);

        setPreferredSize(new Dimension(550, 300));
        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        setTitle("Staff data base");
        pack();
        setVisible(true);
        setLocationRelativeTo(null);
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        Staff staff = new Staff();
        staff.setName(JOptionPane.showInputDialog("Enter First Name"));
        staff.setSurname(JOptionPane.showInputDialog("Enter Second Name"));
        staff.setDate(JOptionPane.showInputDialog("Enter Date"));
        staff.setPosition(JOptionPane.showInputDialog("Enter Position"));
        staff.setSalary(JOptionPane.showInputDialog("Enter Salary"));
        try {
            Factory.getInstance().getStaffDAO().addStaff(staff);
        } catch (SQLException e1) {
            e1.printStackTrace();
        }
        model.fireTableDataChanged();
    }
}

MyTableModel.java

public class MyTableModel extends AbstractTableModel {

    private List<Staff> staffs;

    public MyTableModel(List<Staff> staffs){
        this.staffs = staffs;
    }

    @Override
    public int getRowCount() {
        return staffs.size();
    }

    @Override
    public int getColumnCount() {
        return 5;
    }

    @Override
    public Object getValueAt(int rowIndex, int columnIndex) {
        Staff staff = staffs.get(rowIndex);
        switch (columnIndex){
            case 0:
                return staff.getName();
            case 1:
                return staff.getSurname();
            case 2:
                return staff.getDate();
            case 3:
                return staff.getPosition();
            case 4:
                return staff.getSalary();
        }
        return "";
    }
}