[Nepomuk] How to remove PIMO::Things

[Sebastian Trüg]

I suppose the simplest solution would be a way to "mark" a thing as
second-level thing, ie. a thing that cannot exist without grounding
occurrence.
We essentially have the same problem with sub-resources as discussed in
this review request: https://git.reviewboard.kde.org/r/101994/

Cheers,
Sebastian

On 08/05/2011 12:18 AM, Christian Mollekopf wrote:
> Hey,
> 
> To bring an old topic up, does anyone have an idea how to get rid of
> PIMO:Things if I don't have control over the grounding occurrence?
> In my case that is a feeder generated resource (who would have
> guessed..), so a combined InformationElement/DataObject.
> For tagging purposes I generate a PIMO:Thing, and use only the Thing for
> tags and alike (all manual user work).
> 
> But since the grounding occurrence can vanish at any time, nepomuk is
> left with a dangling Thing.
> 
> I don't think we can make a cleanup service, since I might as well want
> to keep the thing without a grounding occurrence (if valid at all).
> But maybe I could mark the created thing as subresource of the IE, so it
> gets deleted with it?
> This would of course have to work over deleteDataByApplication, so if
> another app uses the thing without setting it as subresource, the thing
> remains
> (otherwise we defeat the whole purpose of the thing).
> 
> Ideas or plans?
> 
> Cheers,
> 
> Christian
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