/**
* Notifies this instance that there was a change in the value of a property of an object in which
* this instance is interested.
*
* @param ev a <tt>PropertyChangeEvent</tt> which specifies the object of interest, the name of
* the property and the old and new values of that property
*/
@Override
public void propertyChange(PropertyChangeEvent ev) {
Object source = ev.getSource();
if (isExpired()) {
// An expired Conference is to be treated like a null Conference
// i.e. it does not handle any PropertyChangeEvents. If possible,
// make sure that no further PropertyChangeEvents will be delivered
// to this Conference.
if (source instanceof PropertyChangeNotifier) {
((PropertyChangeNotifier) source).removePropertyChangeListener(propertyChangeListener);
}
} else if (source == speechActivity) {
speechActivityPropertyChange(ev);
} else if (source instanceof Endpoint) {
// We care about PropertyChangeEvents from Endpoint but only if the
// Endpoint in question is still participating in this Conference.
Endpoint endpoint = getEndpoint(((Endpoint) source).getID());
if (endpoint != null) endpointPropertyChange(endpoint, ev);
}
}
