simple search api (was Re: mimetype standardisation by testsets)
Mikkel Kamstrup Erlandsen
mikkel.kamstrup at gmail.com
Thu Nov 30 14:58:01 EET 2006
2006/11/30, Jamie McCracken <jamiemcc at blueyonder.co.uk>:
> Mikkel Kamstrup Erlandsen wrote:
> > 2006/11/28, Jamie McCracken <jamiemcc at blueyonder.co.uk
> > <mailto:jamiemcc at blueyonder.co.uk>>:
> > As for live queries, I dont like dynamic interfaces and in tracker
> > will simply take a live_query_id as a param and use dbus signal
> > filtering to listen for changes to that specific ID
> > You mean that the client app will have to do dbus match rules, no? I see
> > that this would work, but it also feels counter intuitive, and all
> > experience tells me that this should be avoided in an api.
> > Why not use temporary dbus objects instead? That will also wrap easier
> > in a toolkit client object. Then you have the search engine live
> > method org.freedesktop.search.live.PrepareQuery(args) : returns a dbus
> > path to the query object
> yes that will do - I was worried the existing interface would be
> extended dynamically but yeah using a separate interface will avoid that
> > The query object has the interface org.freedesktop.search.Query
> > something like:
> > method org.freedesktop.search.Query.Execute (args)
> > method org.freedesktop.search.Query.HitCount (args)
> > method org.freedesktop.search.Query.Close (args)
> > signal org.freedesktop.search.Query.HitAdd (args)
> > signal org.freedesktop.search.Query.HitRemove (args)
> > signal org.freedesktop.search.Query.HitModify (args)
> > This is a really rough draft, but I hope the point is clear enough...
> yeah thats fine. (not sure you need a HitModify though?)
> HitAdd - only fired when a new file is created that matches the query
> HitRemove - only fired when a file is deleted that matches the query
> For a file Move - it generates a remove and an add signal.
The HitModify was a bit arbitarary... I was thinking that the metadata for
the hit could change. Resizing and image, changing mimetype, snippet text
changes... This could still be solved by add/remove signals though...
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