Re: [Gzz] org/fenfire/util/RDFList.java

[Tuomas Lukka]

On Mon, Jul 14, 2003 at 01:58:01PM +0200, Benja Fallenstein wrote:
> Tuomas Lukka wrote:
> >On Sun, Jul 13, 2003 at 08:56:15PM +0200, Benja Fallenstein wrote:
> >
> >>Dear Matti,
> >>
> >>just saw your RDFList class in CVS because of Janne's mail. You probably 
> >>haven't seen that is a standard list vocabulary for RDF already:
> >>
> >>   http://www.w3.org/TR/2003/WD-rdf-schema-20030123/#ch_collectionvocab
> >>
> >>If you need lists, please change your code to use that. Thank you!
> >
> >
> >Also, before you start using lists, please discuss it here, as there are 
> >several important versioning issues which we need to think about.
> 
> You're thinking of bags. Read the documentation above.

Well, the versioning of lists is very intricate, and also depends
very much on the internal representation.

For linked lists, two sets of incompatible changes can get you
a loop, if not dealt with properly (see the gzz/Documentation/VersioningMerge).

For the RDF _1, _2, ... types of lists, it's worse: an insertion
maps to O(n) tuple changes.

> Or state what versioning issues you're talking about. The last time you 
> were talking about versioning issues, you were talking about bags.

?

        Tuomas