On 06/13/2014 01:18 AM, Paul Libbrecht wrote:
> Hello Vincent and all,
>
> I've been successfully making my first (java-based) component (I can call it
> from other places) using hints from there and the components' tutorial.
>
> However, I have failed to get that component to listen to events.
> While another, groovy-based, listener is notified, my onEvent is not called.
>
> getEvents is returning objects that I would desire
> public List<Event> getEvents() {
> return Arrays.<Event>asList(
> new AttachmentUpdatedEvent(),
> new AttachmentDeletedEvent());
> }
>
> (I would prefer an abstract type used here, but I need concrete objects)
>
> What else can wrong in my listener?
> Shouldn't there be listener registration at components? (e.g. in the
> initialize method)
>
yes, for registration you need to add the class to the META-INF/components.txt
like explained somewhere:
http://extensions.xwiki.org/xwiki/bin/view/Extension/Component+Module#HComponentRegistration
(and in the Notifications Tutorial, too, I now see after careful reading ...)
some things to try if it still does not work:
- check if there are no error messages in the log file on startup
- maybe try "extend AbstractEventListener" instead of "implement EventListener"
(that should *not* fix any problems, but maybe it gives an explicit error
message instead of failing)
clemens
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