Deadlock with DocumentListener

[dsharma]

You need to wrap your code in the DocumentListener in a SwingUtilities.invokeLater(...). This will add the code to the end of the EDT so that it executes after the Document has been completely updated.

Hi,
I was also facing the same problem when i was using documentListener and trying to change the value of text feild. But after using SwingUtilities.invokeLater it got resolved. But after changing the text the focus is getting lost. It is going into deadlock state as there is a synchonous lock that is with document and calling setText() JtextFeild is trying to get the lock so that's y it is going in deadlock state.


Can you please tell me how can i change the value of text feild using documentListener

[DarrylBurke]

When you have a question, start your own thread -- they're free. Don't resurrect an old thread and don't add an unrelated question in another poster's thread.

Removed from http://www.java-forums.org/new-java/...textfield.html

db

[DarrylBurke]

You need to respect Swing's single threaded rule. Note that many Swing methods which are, up to Java SE 6, documented as being thread-safe are in fact not thread-safe. This has been recognized and the documentation has been corrected in Java SE 7.

All Swing constructors and methods, with the possible exception of repaint(), should be called only on the EDT.

db

[dsharma]

So is there any way to change the value of text feild using document listener during document event?

[DarrylBurke]

You use a DocumentFilter, not a DocumentListener for that.

db

[dsharma]

You use a DocumentFilter, not a DocumentListener for that.

db

I have to validate the value of text field lik it will not take any more than its maximum limit that has already defined and my class is implementing the DocumentListener.

HOw can i acheive this senerio?

[DarrylBurke]

Text Component Features (The Java™ Tutorials > Creating a GUI With JFC/Swing > Using Swing Components)

db