[#SES-716] If rdf:ID is uploaded to a a repository when exporting I get rdf:about

Issue Details [XML]

Key:	SES-716
Type:	Bug
Status:	Closed
Resolution:	Won't Fix
Priority:	Major
Assignee:	Arjohn Kampman
Reporter:	macarse
Votes:	0
Watchers:	1

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Sesame

If rdf:ID is uploaded to a a repository when exporting I get rdf:about

Created: 03/Jul/10 12:41 AM Updated: 04/Jul/10 08:49 PM

Component/s:

None

Affects Version/s:

2.3.1

Fix Version/s:

None

Environment:

Linux Debian

Description

I really don't know if this is a bug but I don't understand why it's happening.
When I upload a rdf with something like:

<rdfs:Class rdf:ID="Plaza"/>

everything goes fine.
But when I export it, I get this instead:

<rdf:Description rdf:about="http://www.parcial.com/turismo#Plaza">
<rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Class"/>
</rdf:Description>

Why do I get an rdf:about instead of rdf:ID?

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Comment by Arjohn Kampman [04/Jul/10 08:48 PM]

RDF/XML allows multiple serializations of RDF graphs. Sesame parses the incoming file and extracts its statements. For exporting, Sesame needs to transform the statements back to RDF/XML syntax again. For this, it uses the rdf:about constructs since these are the most generic (rdf:ID attributes are required to be unique across the entire file).

In conclusion: this is not a bug. The two pieces of RDF/XML are semantically identical.