- From: Jeen Broekstra <jeen.broekstra@aduna.biz>
- Date: Wed, 21 Dec 2005 12:41:14 +0100
- To: Ron Alford <ronwalf@umd.edu>
- CC: public-rdf-dawg-comments@w3.org
The WG has considered your comments carefully [1][2] and has decided[3] to change the Query Results XML Format in response to your comments. In brief, the changes correspond to the 'collapsed' syntax variation you described, that is, an unbound variable is represented by simple omission of a <binding> element. As a consequence, the restriction that binding elements in a result are in the same order as the corresponding variable elements in the header is also dropped. The changes are reflected in the current version of the editor's draft: http://www.w3.org/2001/sw/DataAccess/rf1/ Specifically, the wording in section 2.2 linking ordering of binding elements to ordering of variable elements was stricken. Addtionally, section 2.3.1 now reads: [[ Each result element corresponds to one Query Solution in a result and contains child elements (in no particular order) for each Query Variable that appears in the solution. It is used to record how the query variables bind to RDF Terms. Each binding inside a solution is written as an element binding as a child of result with the query variable name as the value of the name attribute. So for a result binding two variables x and hpage it would look like: [...] The value of a query variable binding, which is an RDF Term, is included as the content of the binding as follows: RDF URI Reference U <binding><uri>U</uri></binding> RDF Literal S <binding><literal>S</literal></binding> RDF Literal S with language L <binding><literal xml:lang="L">S</literal></binding> RDF Typed Literal S with datatype URI D <binding><literal datatype="D">S</literal></binding> Blank Node label I <binding><bnode>I</bnode></binding> If, for a particular solution, a variable is unbound, no binding element for that variable is included in the result element. ]] Please let us know whether this response addresses your comment to your satisfaction. If it does, please respond with [CLOSED] in the subject to allow the issue tracking scripts to close this issue. Regards, Jeen [1] http://lists.w3.org/Archives/Public/public-rdf-dawg/2005OctDec/0009 [2] http://lists.w3.org/Archives/Public/public-rdf-dawg/2005OctDec/0318 [3] http://www.w3.org/2005/12/20-dawg-minutes.html#action01 -- Jeen Broekstra Aduna BV Knowledge Engineer Julianaplein 14b, 3817 CS Amersfoort http://aduna.biz The Netherlands tel. +31 33 46599877
Received on Wednesday, 21 December 2005 11:42:01 UTC