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[dotNetRDF-Develop] Issue CORE-349 has a new comment
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From: <tr...@do...> - 2013-06-16 23:54:05
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<p>A new comment has been added to the following issue.</p>
<table border="0">
<tr>
<td width="90px" valign="top"><b>Title:</b></td>
<td>Property paths using the * operator can generate incorrect results</td>
</tr>
<tr>
<td><b>Project:</b></td>
<td>Core Library (dotNetRDF.dll)</td>
</tr>
<tr>
<td><b>Created By:</b></td>
<td>ash</td>
</tr>
<tr>
<td><b>Date:</b></td>
<td>2013-06-17 12:53 AM</td>
</tr>
<tr>
<td><b>Comment:</b></td>
</tr>
<tr>
<td colspan="2"><p>
I've hit this as well. If it helps, here is a sample query and test data:</p>
<p>
public void DotNetRdfPathTest()</p>
<p>
{</p>
<p>
var myGraph = new OntologyGraph();</p>
<p>
myGraph.LoadFromFile(@"C:\Temp\DotNetRdfPathTest\dotnetrdfpathtest.ttl");</p>
<p>
var queryResults = myGraph.ExecuteQuery(</p>
<p>
"SELECT * WHERE { ?subject <<a href="http://www.w3.org/2000/01/rdf-schema#label">http://www.w3.org/2000/01/rdf-schema#label</a>> ?name . ?subject <<a href="http://www.w3.org/1999/02/22-rdf-syntax-ns#type">http://www.w3.org/1999/02/22-rdf-syntax-ns#type</a>>/<http://www.w3.org/2000/01/rdf-schema#subClassOf>* <<a href="http://example.org/unnamed#Level1_1">http://example.org/unnamed#Level1_1</a>> . ?subject a ?type . } ");</p>
<p>
var results = queryResults as SparqlResultSet;</p>
<p>
if (results == null)</p>
<p>
{</p>
<p>
throw new InvalidOperationException("Was expecting a SparqlResultSet");</p>
<p>
}</p>
<p>
</p>
<p>
foreach (var result in results)</p>
<p>
{</p>
<p>
var id = ((IUriNode)result.Value("subject")).Uri;</p>
<p>
var name = ((ILiteralNode)result.Value("name")).Value;</p>
<p>
var type = ((IUriNode)result.Value("type")).Uri;</p>
<p>
</p>
<p>
Console.WriteLine("{0} {1} {2}", id, name, type);</p>
<p>
}</p>
<p>
}</p>
<p>
-------------</p>
<p>
# baseURI: <a href="http://example.org/unnamed">http://example.org/unnamed</a></p>
<p>
</p>
<p>
@prefix : <<a href="http://example.org/unnamed#">http://example.org/unnamed#</a>> .</p>
<p>
@prefix owl: <<a href="http://www.w3.org/2002/07/owl#">http://www.w3.org/2002/07/owl#</a>> .</p>
<p>
@prefix rdf: <<a href="http://www.w3.org/1999/02/22-rdf-syntax-ns#">http://www.w3.org/1999/02/22-rdf-syntax-ns#</a>> .</p>
<p>
@prefix rdfs: <<a href="http://www.w3.org/2000/01/rdf-schema#">http://www.w3.org/2000/01/rdf-schema#</a>> .</p>
<p>
@prefix xsd: <<a href="http://www.w3.org/2001/XMLSchema#">http://www.w3.org/2001/XMLSchema#</a>> .</p>
<p>
</p>
<p>
:Level1</p>
<p>
rdf:type rdfs:Class .</p>
<p>
</p>
<p>
:Level1_1</p>
<p>
rdf:type rdfs:Class ;</p>
<p>
rdfs:subClassOf :Level1 .</p>
<p>
</p>
<p>
:Level1_2</p>
<p>
rdf:type rdfs:Class ;</p>
<p>
rdfs:subClassOf :Level1 .</p>
<p>
</p>
<p>
:level1_1_item1</p>
<p>
rdf:type :Level1_1 ;</p>
<p>
rdfs:label "level1_1 item 1" .</p>
<p>
</p>
<p>
:level1_2_item_1</p>
<p>
rdf:type :Level1_2 ;</p>
<p>
rdfs:label "level1_2 item 1" .</p>
<p>
</p>
<p>
:level1_2_item_2</p>
<p>
rdf:type :Level1_2 ;</p>
<p>
rdfs:label "level1_2 item 2" .</p>
<p>
</p>
<p>
:level_1_1_item_2</p>
<p>
rdf:type :Level1_1 ;</p>
<p>
rdfs:label "level1_1 item 2" .</p></td>
</tr>
</table>
<p>
More information on this issue can be found at
<a href="http://www.dotnetrdf.org/tracker/Issues/IssueDetail.aspx?id=349" target="_blank">http://www.dotnetrdf.org/tracker/Issues/IssueDetail.aspx?id=349</a></p>
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