Fun with Akonadi Dataengine

[David Baron]

Latest from playground SVN.

I re-downloaded and compared with the older code. The only real difference 
besides the volume of diagnostic printout is that the ContactCollection-# list 
is made at a completion event rather than immediately on 
connectSource(ContactCollections).

Such could alleviate some of the panel delay I encountered when doing this 
directly in init(). However, this is a small amount of data at this point. The 
delay was more from the log-jam on kde/plasma startup. For example, with the 
older dataengine, it took almost 90 seconds before I got the contacts to start 
dataUpdate-ing. Later on, run from the plasmoidviewer, this same thing 
completes in several seconds.

With the new code, I will not have any useful return from query until I have 
the equivalent in dataUpdate. This is why it did not work. I should recode it 
so it would work either way.