How to update JTable from JMenuBar?

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Royan - 30 Mar 2008 00:50 GMT

The initial problem is to update JTable when user opens file from my
JMenuBar

I handle JMenuBar events by implementing AbstractAction
My JTable has its own implementation of TableModel (I extend
DefaultTableModel)

The JTable itself is added into the JPanel that resides within the
JFrame that actually holds,the described above JMenuBar, I know its
getting too confusing, so I'll try to visualize my words

---------------------------------

| MyJMenuBar
| -------------------------------
| MyJPanel
| ------------------------------
| |JTable
| |*************************
| |* MyTableModel is here *
| |*************************

So how to I update my JTable when user clicks File > Open on JMenuBar?

There is one hack I think about right now. In File-Open handler I can
add the following line of code

SwingUtilities.windowForComponent(MyJMenuBar.this).getMyJPanel().getJTable().setNewModel(new
MyTableModel());

Frankly I don't like this approach, because I don't think its good to
make my JMenuBar to be aware of MyTableModel, so I desperately need
somebody's help and advice.
Thanks a lot beforehand!

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David A. Redick - 30 Mar 2008 16:18 GMT

I make my 'main' JFrame an ActionListener for my 'open' MenuItem.
When the 'open' sends the ActionEvent to 'main' and then I create a
FileChooser
and let the user pick the file.

After the FileChooser returns I just call the various methods for the
table model.

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Royan - 30 Mar 2008 17:37 GMT

> The initial problem is to update JTable when user opens file from my
> JMenuBar
[quoted text clipped - 29 lines]
> somebody's help and advice.
> Thanks a lot beforehand!

Thanks David, but I think i've come up with something that answers my
question:

public void actionPerformed(final ActionEvent e) {
if (FILE_OPEN.equals(e.getActionCommand())) {
SwingUtilities.windowForComponent(MyJMenuBar.this)
.firePropertyChange("fileOpen", 0, 1);
}
}

As far as you can understand each menu item is initialized with an
instance of AbstractAction implementation with similar code. The last
step is that Controller class within main window handles fired
property change within its code.

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Chase Preuninger - 31 Mar 2008 14:43 GMT

Pass the reference along.

http://groups.google.com/group/java-software-develoupment?hl=en

Reply to this Message

Sabine Dinis Blochberger - 01 Apr 2008 09:39 GMT

> Pass the reference along.
>
> http://groupspam.google.com/group/java-spam-develoupment?hl=en

Go away, you spammer.