- From: Victor Porton <porton@narod.ru>
- Date: Thu, 10 Jul 2014 18:05:40 +0300
- To: Pat Hayes <phayes@ihmc.us>
- Cc: Michael Brunnbauer <brunni@netestate.de>, SW-forum Web <semantic-web@w3.org>
10.07.2014, 17:59, "Pat Hayes" <phayes@ihmc.us>: > On Jul 10, 2014, at 8:17 AM, Victor Porton <porton@narod.ru> wrote: >> š10.07.2014, 16:05, "Michael Brunnbauer" <brunni@netestate.de>: >>> šHello Victor, >>> >>> šwhen using RDF, you cannot decree that certain entities have to be described >>> šusing blank nodes. RDF users are free to choose between URIs or blank nodes and >>> šyour app should be able to cope with both. >> šMy conclusion from this is that the RDF specification should be changed, so that an application would be able to demand that certain nodes are blank. > > As stated, this requirement does not make sense. How would one specify which node one wanted to be blank? There is no way to describe a single node in a graph one has not yet seen. It is my Ada code, which checks whether a node is blank. It should be just sure that my Ada code is capable to do this check. >> šAnd despite of that it is not already in the RDF standard, it seems that most of implementation already provide support for this: Using an RDF library I can tell which nodes are blank and which are not. > > You can look at nodes and determine which ones are blank nodes, of course. That is part of the RDF syntax. It is just what I need. -- Victor Porton - http://portonvictor.org
Received on Thursday, 10 July 2014 15:06:20 UTC