[Kde-pim] Akonadi Nepomuk Email Searching

[Andras Mantia]

Hi,

Vishesh Handa wrote:

> Hey Laurent
> 
> Over the last couple of weeks, I've slowly started learning more about
> Akonadi, and I've started using it. The good/bad news is that I have
> started experiencing all the issues people complain about, so hopefully I
> can fix them.
> 
> I tried to search for an email using kmail, and it worked out fine.
> However, I notice that kmail remembers some of the searches that were
> performed. I know it uses the QueryServiceClient for this, I however
> cannot find the relevant code. Could you perhaps point me towards it?
> 
> The way the QueryServiceClient is used is bad, cause we (Nepomuk) land up
> re-running the query each time an email is indexed. That makes virtuoso
> consume more cpu.


I'm not that familiar with the searches, but by looking at the code:
- when a search performed a virtual collection is created with the search 
query
- this is done using Akonadi::SearchCreateJob 
(kdepimlibs/akonadi/searchcreatejon.cpp)
- the above triggers the virtual collection creation in the Akonadi server. 
See akonadi/server/src/handler/searchpersistent.cpp
- when a search is performed inside Akonadi, it goes through the 
akonadi/server/src/handler/search.cpp. That uses a class called 
NepomukSearch that uses the QueryServiceClient you mentioned.

What I don't know is how/when the virtual collection's content is updated.

I hope this gives you some clue where to look for the code your searching 
for.

Andras
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