[SailfishDevel] graphDB (gnome - tracker) on sailfish

[Timur Kristóf]

Hey Peter,

This topic has been on my mind for some time, I just haven't had the
time to bring it up yet. I'm definitely interested.

In the past I spent a lot of time working with a CMS that used a non-
relational content repository. My experience tells me that for most use
cases, you don't actually need an RDBMS; a NoSQL solution could get the
job done in a simpler-to-use and more efficient way.

However, as yet I'm unaware of a suitable piece of software.
Here are the most notable ones I've looked into:

* MongoDB: could be an obvious candidate, but it was designed and
optimized for very different use cases, so not something I'd run on my
phone.

* Tracker: looks like a bloated monster, and under the hood it too just
uses sqlite. So it definitely isn't more effective than just using
sqlite as is. (Side note: on Harmattan, Nokia chose to store literally
everything in Tracker... which wasn't such a good idea.)

* Lucene: unfortunately the main implementation is in Java, and the
native version (clucene / lucy) is lagging behind hopelessly. (Side
note: IIRC, the Qt project uses clucene, maybe just because they didn't
find a better alternative.)

So, the ultimate solution still eludes us.
I believe a "lucene-like" approach might be right way to go, but at
least I haven't yet found a decent implementation that I would be
comfortable going with. Maybe we would have to "roll our own"
eventually.

Best regards,
Timur
On v, 2016-06-05 at 23:39 +0200, Peter Kovacs wrote:
> I changed the topic to something more apropriate.
> I took a brief look at tracker, and the goals and alround project
> sounds 
> interesting. It is a slight different direction I had in mind,
> thought. 
> But well it reminds me on how apple should have taggled their iOS 
> Datamanegment but failed to do this.
> 
> @Chris Adams: Do you refer on Problems with tracker within Projects
> on 
> Desktop or Embedded environments?
> I think if you get Issues with DBus (seems to be core feature for 
> Tracker, yay) you get lost quickly without in depth knowledge. Maybe
> you 
> refer to that?
> 
> However I think if I try to make tracker ready for Sailfish as an 
> alternate way for storing Data instead of SQL RDBMS, you need more
> then 
> just tracker.
> A Data API that connects QT / QML - way to handle Data with tracker
> is 
> vital for such a Project. And that in a way you can use the API with
> 80% 
> plus of the use cases when it comes down to store Information on your
> phone.
> The API should make this tool work seemlessly. And I agree with
> Chris 
> Adams, right away, that this is realy challenging if this should
> beat 
> the experienced SQL way.
> 
> I have some Ideas thought. And at least a broader vision on what I
> had 
> before.
> 
> I will write some sort of concept in the upcomming weeks.
> 
> Is besides Andrej anyone else interested to share Ideas, requirement
> he 
> sees in respect of MetaData/ Data storage in general?
> 
> If it is only a small circle I would discuss this off the list, and
> come 
> back to you all if the concepts is ready. Then I would see a PoC and
> at 
> latest a Warehouse version.
> currently this is based on hobby/freetime level. so I will need some
> time.
> 
> Thanks for the input so far!
> _______________________________________________
> SailfishOS.org Devel mailing list
> To unsubscribe, please send a mail to devel-unsubscribe at lists.sailfis
> hos.org