Vetoing a change by DefaultCellEditor in JTable

[Brian J. Sayatovic]

I'm using a DefaultCellEditor with a JTextField to capture a String
that is ultimately passed to setValueAt in my TableModel. In that
method, I have logic which could throw an exception if the String's
contents proves to be invalid (i.e. one use is where the String is a
regular expression that might be syntactically invalid).

How can I handle this? Right now, the code throws an Exception which
I'd like to catch, display a dialog, and then return the user to
editing without ever committing the value. Is this easily doable?

Regards,
Brian.

 

[Tor Iver Wilhelmsen]

How can I handle this? Right now, the code throws an Exception which
I'd like to catch, display a dialog, and then return the user to
editing without ever committing the value. Is this easily doable?

Override the TableModel's stopCellEditing() to catch the exception and
return false, otherwise return true.