How to share information in Java between tabs in JTabbedPane

Question

I have one tab that displays the list of users in a JTable that I have extracted from a database and another tab that displays JTextFields that want to edit the user details then save them to the database.

One of the unique feature of a user is a userID(Integer) that am able to get from the JTable depending on which row is selected.

Now I want use that userID and fill the JTextFields with data from the database to allow editing and hence save the new values below is the UI( can't post images)

Basically is how to share the Integer variable between the two tabs

score 3 · Answer 1 · edited May 23 '17 at 11:48

3

create JFrame with JTable (in JScrollPane)
add JPopup with JMenuItems to the JTable
override ListSelectionListener.SINGLE... to avoiding multiply selections
create JDialog with JTextComponents
create JDialog only once time, reuse that for another event from JPopup,
override JDialog#setDefaultCloseOperation to HIDE_ON_CLOSE, then you'll play only with setVisible(true/false)
get data from selected row and fill required JTextComponents in the JDialog, then call JDialog#setVisible(true) wrapped in invokeLater()
put there JButtons (cancel and save) with JDBC statement UPDATE ...., put there boolean variable that representing success from JDBC,
on success to refresh XxxTableModel, then to hide JDialog
all updates (JTable, XxxTableModel)to the Swing GUI must be done on EDT

edited May 23 '17 at 11:48

Community

1
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answered Oct 24 '12 at 08:10

mKorbel

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@mKorbel could i email you my project, and help me implement your solution. my email address is frandave.free@gmail.com – Francis Oct 24 '12 at 13:50
@Java_Francis sorry not, I'm going there for my enjoy and pleasure, please to delete this comment – mKorbel Oct 24 '12 at 13:59
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@Java_Francis if you want someone doing your work for you consider hiring a consultant (and pay her/him, of course ;-) – kleopatra Oct 24 '12 at 14:52
am just stuck with that idea, but thanks anyways i came up with a new way to accomplish my task – Francis Oct 24 '12 at 17:24

score 1 · Answer 2 · answered Oct 24 '12 at 08:03

You need to have your own mechanism for communication between the tabs. For instance you can have a reference of second tab in first tab so that when row is selected in table you can call specific method in second component. If you want to decouple them you can add a listener interface which second component implements and adds itself as listener to first one and so on.

How to share information in Java between tabs in JTabbedPane

2 Answers2