Java listener on dialog close

Question

I have a Java app that displays a list from a database. Inside the class is the following code to open a new dialog for data entry:

@Action
public void addNewEntry() {
    JFrame mainFrame = ADLog2App.getApplication().getMainFrame();
    addNewDialog = new AddNewView(mainFrame, true);
    addNewDialog.setLocationRelativeTo(mainFrame);
    addNewDialog.addContainerListener(null);
    ADLog2App.getApplication().show(addNewDialog);
}

How do you add a listener to the main class to detect when the addNewDialog window is closed, so that I can call a refresh method and refresh the list from the database.

Solution 1

If AddNewView is a Window such as a Dialog or JDialog, you could use the Window.addWindowListener(...). That is, in your main class, you do

addNewDialog.addWindowListener(someWindowListener);

where someWindowListener is some WindowListener (for instance a WindowAdapter) which overrides / implemetnns windowClosed.

A more complete example, using an anonymous class, could look like

addNewDialog.addWindowListener(new WindowAdapter() {
    @Override
    public void windowClosed(WindowEvent e) {
        refreshMainView();
    }
});

---

Relevant links:

• Official Tutorial: How to Write Window Listeners

Solution 2

you have to add WindowListener and override windowClosing Event, if event occured then just returs some flag, example here

Comments

[Andrew Thompson]

Great links. In regard to the ones to the JavaDocs. Until such times as bug report 7090875 (an RFE) is resolved, any chance of you throwing a '7' into any search for the doc for a class (or otherwise linking to the version 7 docs)?

[aioobe]

Yeah. Perhaps it's time to start referring to v7... Hadn't struck my mind. I'll do it from now on. Thanks.

[Andrew Thompson]

Thanks back. The sooner that people start linking to the v. 7 docs, the sooner Google will return those links over the v. 6 links. Of course, if the RFE is implemented, it will all become moot.

[corochann]

Just to add note that windowClosed is called when dispose() method are used, and windowClosing is called when user press 'X' button on top-right of the JDialog.