JSpinner Value change Events

The answer is to configure the formatter used in the JFormattedTextField which is a child of the spinner’s editor:

    formatter.setCommitsOnValidEdit(true);

Unfortunately, getting one’s hand on it is as long and dirty as the introductory sentence:

    final JSpinner spinner = new JSpinner();
    JComponent comp = spinner.getEditor();
    JFormattedTextField field = (JFormattedTextField) comp.getComponent(0);
    DefaultFormatter formatter = (DefaultFormatter) field.getFormatter();
    formatter.setCommitsOnValidEdit(true);
    spinner.addChangeListener(new ChangeListener() {

        @Override
        public void stateChanged(ChangeEvent e) {
            LOG.info("value changed: " + spinner.getValue());
        }
    });

A slightly (but not by much) cleaner way might be to subclass NumberEditor and expose a method which allows the config