On 11.3.14 3:30 , Jukka Zitting wrote:
Hi,
On Tue, Mar 11, 2014 at 6:12 AM, Michael Dürig <[email protected]> wrote:
One way we could address this in an backward compatible way is to slightly
extend the semantics of the absPath parameter and allow for a list of path
instead of a single one.
Couldn't the client achieve the same effect by registering multiple
copies of the listener, one for each path?
Yes it could and in fact that was the initially proposed solution. I
came up with this approach to make the client's life easier, but have my
own reservations re. this.
Michael
A utility class like the one shown below should do the trick.
BR,
Jukka Zitting
----
public class MultiListener implements EventListener {
private final ObservationManager manager;
private final EventListener listener;
private final List<EventListener> proxies = new ArrayList<EventListener>();
public void register(
int eventTypes, Collection<String> paths, boolean isDeep,
String[] uuid, String[] nodeTypeNames, boolean noLocal)
throws RepositoryException {
for (String path : paths) {
EventListener proxy = new EventListener() {
@Override
public void onEvent(EventIterator events) {
listener.onEvent(events);
}
};
manager.addEventListener(
proxy, eventTypes, path,
isDeep, uuid, nodeTypeNames, noLocal);
proxies.add(proxy);
}
}
public void unregister() throws RepositoryException {
for (EventListener proxy : proxies) {
manager.removeEventListener(proxy);
}
}
}
