Hi,
I would appreciate if someone could help me with the following doubt:
Scenario:
-------------
I made a form using java swing, which has some buttons.
To all the buttons I added an ActionListener - which will implement the
actionPerformed() function.
Problem:
------------
Some of the actions performed when the user presses one button take some
minutes (not too much), however I thought of
showing JOptionPane.showMessageDialog() presenting the message "Processing
task" while the user waits for the results...
Tried solution:
-------------------
I made a class which estends Thread:
public class OperationProgressThread extends Thread
{
private static JOptionPane jOptionPane;
public OperationProgressThread ()
{
jOptionPane = new JOptionPane();
}
public void run()
{
jOptionPane.showMessageDialog( null, "Please wait...", "",
JOptionPane.INFORMATION_MESSAGE);
}
}
Then in the class where I defined the form, i create a new instance of
OperationProgressThread and invoke the start() and stop()
methods in the beginning and at the end (respectively) of the action to
perform when the button is pressed:
OperationProgressThread thread = new OperationProgressThread();
doImport.setPreferredSize(new java.awt.Dimension(80, 27));
doImport.setText("Import");
doImport.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
doImportActionPerformed(evt);
}
}
);
/**
* The doImportActionPerformed method in this class
* is called when the user presses the "Import" button.
*/
private void doImportActionPerformed(java.awt.event.ActionEvent evt)
{
thread start();
boolean bRetVal = false;
try
{
bRetVal = dbIntUser.cmdImportClick( sSelectedInterface );
System.out.println( "cmdImportClick returned " + bRetVal );
}
catch ( ComJniException cje ) { jOptionPane1.showMessageDialog( null,
cje.getMessage(), "Exception", JOptionPane.ERROR_MESSAGE); }
catch ( Exception e ) { jOptionPane1.showMessageDialog( null,
e.getMessage(), "Exception", JOptionPane.ERROR_MESSAGE); }
}
thread.stop();
}
The problem is that this window is only poped up when the results are
shown.... so I have no clue of what should I do...
Thanks in advance.
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