Java – AddUser – RestJFrame

public class RestJFrame extends JFrame implements ActionListener, PropertyChangeListener{
    ...
    private RegisterJDialog registerJDialog = null;
    ...
    public void propertyChange(PropertyChangeEvent evt) {
        if(evt.getSource().equals(loginJDialog)&&evt.getPropertyName().equals("AuthorizationOk")){
            productTableModel.setToken((String)evt.getNewValue());
            refresh();
        }else if(evt.getSource().equals(loginJDialog)&&evt.getPropertyName().equals("Register")){
            registerJDialog.setVisible(true);
        }else if(evt.getSource().equals(registerJDialog)&&evt.getPropertyName().equals("AuthorizationOk")){
            productTableModel.setToken((String)evt.getNewValue());
            refresh();
        }else if(evt.getSource().equals(registerJDialog)&&evt.getPropertyName().equals("Login")){
            loginJDialog.setVisible(true);
        }
    }
    ...
    private void initialize() {
        ...
        registerJDialog = new RegisterJDialog(this);
        registerJDialog.addPropertyChangeListener(this);
        ...
    }
    ...
}