[Zope] ZCatalog dynamic indexing

[Chris McDonough]

Michel Pelletier has a new project called "Zemantic" in the Sourceforge
Collective which has this capability (of indexing objects using
triples).  It is not yet released but is available via CVS.


On Sun, 2004-11-28 at 18:09, Dieter Maurer wrote:
> Garito wrote at 2004-11-27 16:05 +0100:
> > ...
> >I would know the security access for ALabel like:
> >
> >ObjectA
> >    porpertyA
> >       Label1:1:Everyone
> >       Label2:1:Administrator
> >       Label2:1:Users
> >
> >I would like to retrieve ObjectA if I ask for Label1 for Users
> >
> >You know what I mean?
> 
> No.
> 
> I might have understood had you asked for "Label1" or "Users"
> or (maybe: "Label2 for Users") but "Label1 for Users" simply
> does not fit with your example ;-)
> 
> Independent of language, your examples should be consistent...
> 
> 
> I will try to give you some hints.
> 
> As you have a lines property, almost surely a KeywordIndex (maybe
> more) is what you are looking for.
> 
> You have several options:
> 
>   *  A single KeywordIndex for "propertyA"
> 
>      -  indexing the triples
> 
>         this means, you must specify always triples.
> 
> 	With a "Managable KeywordIndex" you can use
> 	pattern matching to replace missing parts by
> 	wildcards.
> 
>      -  indexing "label", "order", "access" separately
> 
>         This would allow you to ask for the parts separately.
> 
> 	To work well, it would require that the names
> 	used in the different categories are different.
> 
>   *  several (Keyword) indexes for "propteryA", e.g. one
>      index each for "label", "order" and "access".