zk 6.5.3 & session serialization: didActivate invoked many times

asked 2015-04-08 11:24:24 +0800

cvarona
554 ● 1 ● 6

Hi,

I have quite a few zul forms powered by generic forward composers. I've been trying to make these forms fully serializable in order to achieve high availability. Quite to my surprise every composer's didActivate method gets invoked not just once, but many times. Exactly one for every listener defined as public void onXXX$... in the controller. By debugging I've seen that, within this piece of AbstractComponent's code:

if (_auxinf != null && _auxinf.listeners != null)
            for (Iterator<List<EventListenerInfo>> it = CollectionsX.comodifiableIterator(_auxinf.listeners.values());
            it.hasNext();)
                for (EventListenerInfo li: it.next())
                    didActivate(li.listener);

every li.listener amounts to the controller instance itself.

I can of course very easily keep track of whether a certain didActivate invokation must be paid heed to by establishing a counter to be incremented in didPassivate and decremented in didActivate but, all the same, is it a bug or is it done on purpose (and in this case, which one)?

Regards