Update row with more data - JTable with Abstracttablemodel

Question

Hello!
I got some problems with my program, im using jtable with abstracttablemodel.
First I include content into the jtable by pressing ”New Content”, then it will pop up a dialog which I fill with information as you can see in the picture.
http://img42.imageshack.us/img42/6969/jtable.jpg
But when its done, I want to borrow it and update that row with more information as you can see if its loaned, if it is their shall be a checkbox, name and phone there. I don’t really know how to do this. Suppose I should do a similar metodh as when I’m adding and removing content. The question is how do I do that? I’ve been looking at some tips and hints on google. It seems to me that should use “fireTableRowsUpdated” but not really sure if its right and how to. When I’m borrowing the specific row I guess I need to check which row is clicked before borrowing and then fill in the information and update the table.The borrow button will also pop up a dialog with 3 fields to fill. Here is the code I wrote for adding and removing. I’ve tried with the update but its not right which I’m going to use when borrowing objects from the database. Please help!
Code from the abstracttablemodel
private ArrayList<Objects> obj = new ArrayList<Objects>();
     public void add(Objects o) {
          obj.add(o);
          fireTableRowsInserted(obj.size()-1, obj.size()-1);
     public void remove(int o) {
          int index = obj.indexOf(o);
          obj.remove(o);
          fireTableRowsDeleted(index, index);
     public void update (Objects o){
          // Not sure how to do here
          //int index = obj.indexOf(o);
          //fireTableRowsUpdated(index,index);
     }Code for the button in the main program.
if (arg.getSource() == borrow) {
// How should I do here? I need to implement the BorrowDialog, check if a row is pressed then update? How do I do that?
               BorrowDialog newLoan = new BorrowDialog(frame);
               if(table.getSelectedRow() == -1)
                    JOptionPane.showMessageDialog(frame,"Select the row before loan");
               else
                    dir.update(newLoan.getLoan());
                    table.repaint();
          }Code for BorrowDialog
public class BorrowDialog extends JDialog implements ActionListener {
        //implements JTextFields, Buttons,Labels and Panels.
     public BorrowDialog(JFrame parent) {
     //Setting buttons to panels and such
     public Objects getLoan(){
          return loan;
     public void setLoan()
                // Not sure if this is right, as I leave some fields empty, will it be empty when its updating aswell?
                // I tried with add data then it just will be a new row, when I will update a specific row
                loan = new Objects("", "" , "" , "" , "" ,"", loanField.getText(),nameField.getText(), phoneField.getText());
     public void actionPerformed(ActionEvent arg) {
          if (arg.getActionCommand().equals("Save")) {
               System.out.println("save");
               setLoan();
               dispose();
}All help is appreciated!
Edited by: iTech34 on Feb 22, 2010 3:27 AM
Edited by: iTech34 on Feb 22, 2010 3:31 AM
Edited by: iTech34 on Feb 22, 2010 3:58 AM

Answer 1

Look up for the rest of the code!
I explained everything on the first post, so please read there so you know the problem I got.
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
public class Database implements ActionListener {
     private final int WIDTH = 800;
     private final int HEIGHT = 800;
     private JTable table = new JTable();
     private JFrame frame = new JFrame("Database");
     private JButton addContent = new JButton("New content");
     private JButton borrow = new JButton("Borrow");
     private JButton returnObject = new JButton("Return");
     private JButton remove = new JButton("Remove");
     private JButton save = new JButton("Save");
     private JButton load = new JButton("Load");
     private JButton exit = new JButton("Exit");
     private Directory dir = new Directory();
     private JPanel buttonPanel = new JPanel();
     private JPanel mainPanel = new JPanel();
     public Database() {
          // BUTTONS
          buttonPanel.add(addContent);
          buttonPanel.add(remove);
          buttonPanel.add(borrow);
          buttonPanel.add(returnObject);
          buttonPanel.add(save);
          buttonPanel.add(load);
          buttonPanel.add(exit);
          // ACTION LISTENERS
          addContent.addActionListener(this);
          remove.addActionListener(this);
          borrow.addActionListener(this);
          returnObject.addActionListener(this);
          save.addActionListener(this);
          load.addActionListener(this);
          exit.addActionListener(this);
          // JTABLE
          table = new JTable(dir);
          table.setAutoCreateRowSorter(true);
          table.setRowHeight(25);
          JScrollPane JScroll = new JScrollPane(table);
          // PANELS
          mainPanel.setLayout(new BorderLayout());
          mainPanel.add("North", buttonPanel);
          mainPanel.add("Center", JScroll);
          // FRAME
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          frame.setSize(WIDTH, HEIGHT);
          frame.getContentPane().add(mainPanel);
          frame.pack();
          frame.setLocationRelativeTo(null);
          frame.setVisible(true);
     public void actionPerformed(ActionEvent arg) {
          if (arg.getSource() == addContent) {
               Dialog newDialog = new Dialog(frame);
               dir.add(newDialog.getItem());
          if (arg.getSource() == remove) {
               if (table.getSelectedRow() == -1)
                    JOptionPane.showMessageDialog(frame,"Select the row before remove");
               else
                    dir.remove(table.getSelectedRow());
          if (arg.getSource() == borrow) {
               // Not sure how to do here! I need to check which row I've clicked and take that row into BorrowDialog as argument i suppose.. please explain
               BorrowDialog newLoan = new BorrowDialog(frame);
               if(table.getSelectedRow() == -1)
                    JOptionPane.showMessageDialog(frame,"Select the row before loan");
               else
                    dir.update(newLoan.getLoan());
                    table.repaint();
          if (arg.getSource() == returnObject) {
          if (arg.getSource() == save) {
               dir.writeFile();
          if (arg.getSource() == load) {
               Objects[] tempObject = dir.readFile("info.txt");
               for (int i = 0; tempObject[i] != null; i++)
                         dir.add(tempObject);
          if (arg.getSource() == exit){
               frame.dispose();
     public static void main(String[] argv) {
          new Database();
}import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class BorrowDialog extends JDialog implements ActionListener {
     private final int WIDTH = 300;
     private final int HEIGHT = 400;
     private JButton exitDialog = new JButton("Exit");
     private JButton saveDialog = new JButton("Save");
     private JTextField loanField = new JTextField();
     private JTextField nameField = new JTextField();
     private JTextField phoneField = new JTextField();
     private JLabel loanLabel = new JLabel("Loan");
     private JLabel nameLabel = new JLabel("Name");
     private JLabel phoneLabel = new JLabel("Phone");
     private JPanel eastPanel = new JPanel();
     private JPanel southPanel = new JPanel();
     private JPanel westPanel = new JPanel();
     private GridLayout layout = new GridLayout(3, 1);
     private Objects loan;
     public BorrowDialog(JFrame parent) {
          super(parent, "Borrow", true);
          southPanel.add(saveDialog);
          southPanel.add(exitDialog);
          westPanel.add(loanLabel);
          eastPanel.add(loanField);
          westPanel.add(nameLabel);
          eastPanel.add(nameField);
          westPanel.add(phoneLabel);
          eastPanel.add(phoneField);
          westPanel.setLayout(layout);
          eastPanel.setLayout(layout);
          add("West", westPanel);
          add("Center", eastPanel);
          add("South", southPanel);
          saveDialog.addActionListener(this);
          exitDialog.addActionListener(this);
          setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
          setResizable(false);
          setSize(WIDTH, HEIGHT);
          getContentPane();
          setVisible(true);
     public Objects getLoan(){
          return loan;
     public void setLoan()
          // Can I really do like this? Will the the specific row I've chosen be overwriten entirly with blank elements in the six columns as I left empty(see below, when I send the arguments into the constructor)?
          loan = new Objects("", "" , "" , "" , "" ,"", loanField.getText(),nameField.getText(), phoneField.getText());
     public void actionPerformed(ActionEvent arg) {
          if (arg.getActionCommand().equals("Save")) {
               System.out.println("save");
               setLoan();
               dispose();
          if (arg.getSource() == exitDialog) {
               dispose();
Edited by: iTech34 on Feb 22, 2010 11:19 AM
Edited by: iTech34 on Feb 22, 2010 11:20 AM