how do I veto a setSelected() on JCheckBox


Hello all, I am confused as to how to do this?
I would like the change to veto a setSelected
when the event happens but not sure how to go about this.
If I am in the actionPerformed of a JCheckBox, I guess
at that point it is to late to veto right? I would liek to check
some business logic before allowing the check to take place
by using contstrained properties.

I was thinking I would have define my own checkbox like

MyVetoableCheckBox extends JCheckBox
{
void public setSelected(booleand b) { setVetableSelected(b); }

void public setVetableSelected(boolean b) throws
ProvertyVetoException
{

if( some business logic tells me not to allow the check )
{
Boolean oldValue = isSelected ? Boolean.TRUE : Boolean.FALSE;
Boolean newValue = selected ? Boolean.TRUE : Boolean.FALSE;
fireVetoableChange("selected", oldValue, newValue);
}
else
{
super.setSelected(b);
}
}

am I even approaching this right?

.

Relevant Pages

  • Re: how do I veto a setSelected() on JCheckBox
    ... I would like the change to veto a setSelected ... MyVetoableCheckBox extends JCheckBox ... Boolean oldValue = isSelected? ... Boolean newValue = selected? ...
    (comp.lang.java.gui)
  • Re: how do I veto a setSelected() on JCheckBox
    ... Default model for JCheckBox is JToggleButton.ToggleButtonModel ... I would like the change to veto a setSelected ... Boolean oldValue = isSelected? ... Boolean newValue = selected? ...
    (comp.lang.java.gui)