本文整理汇总了C#中Graph.GetTriplesWithPredicate方法的典型用法代码示例。如果您正苦于以下问题：C# Graph.GetTriplesWithPredicate方法的具体用法？C# Graph.GetTriplesWithPredicate怎么用？C# Graph.GetTriplesWithPredicate使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Graph的用法示例。
在下文中一共展示了Graph.GetTriplesWithPredicate方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: ParseProfileAttribute
private bool ParseProfileAttribute(RdfACoreParserContext context, IRdfAEvent evt)
{
foreach (Uri u in this.ParseUris(context, evt["profile"]))
{
try
{
Graph g = new Graph();
#if !SILVERLIGHT
UriLoader.Load(g, u);
#else
throw new PlatformNotSupportedException("The @profile attribute is not currently supported under Silverlight/Windows Phone 7");
#endif
String prefixQuery = "PREFIX rdfa: <" + RdfAParser.RdfANamespace + "> SELECT SAMPLE(?prefix) AS ?NamespacePrefix SAMPLE(?uri) AS ?NamespaceURI WHERE { ?s rdfa:prefix ?prefix ; rdfa:uri ?uri } GROUP BY ?s HAVING (COUNT(?prefix) = 1 && COUNT(?uri) = 1)";
String termQuery = "PREFIX rdfa: <" + RdfAParser.RdfANamespace + "> SELECT SAMPLE(?term) AS ?Term SAMPLE(?uri) AS ?URI WHERE {?s rdfa:term ?term ; rdfa:uri ?uri } GROUP BY ?s HAVING (COUNT(?term) = 1 && COUNT(?uri) = 1)";
//Namespace Mappings
Object results = g.ExecuteQuery(prefixQuery);
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset.Results)
{
INode prefixNode = r["NamespacePrefix"];
INode nsNode = r["NamespaceURI"];
if (prefixNode.NodeType == NodeType.Literal && nsNode.NodeType == NodeType.Literal)
{
String prefix = ((ILiteralNode)prefixNode).Value.ToLower();
String ns = ((ILiteralNode)nsNode).Value;
context.Namespaces.AddNamespace(prefix, new Uri(ns));
}
}
}
//Term Mappings
results = g.ExecuteQuery(termQuery);
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset.Results)
{
INode termNode = r["Term"];
INode uriNode = r["URI"];
if (termNode.NodeType == NodeType.Literal && uriNode.NodeType == NodeType.Literal)
{
String term = ((ILiteralNode)termNode).Value;
String uri = ((ILiteralNode)uriNode).Value;
if (XmlSpecsHelper.IsNCName(term))
{
context.Terms.AddNamespace(term, new Uri(uri));
}
}
}
}
//Vocabulary Setting
INode vocabNode = g.GetTriplesWithPredicate(g.CreateUriNode(new Uri(RdfAParser.RdfANamespace + "vocabulary"))).Select(t => t.Object).FirstOrDefault();
if (vocabNode != null)
{
if (vocabNode.NodeType == NodeType.Literal)
{
context.DefaultVocabularyUri = new Uri(((ILiteralNode)vocabNode).Value);
}
else if (vocabNode.NodeType == NodeType.Uri)
{
context.DefaultVocabularyUri = ((IUriNode)vocabNode).Uri;
}
}
}
catch
{
return false;
}
}
return true;
}示例2: StorageStardogUpdateNamedGraphAddTriples
public void StorageStardogUpdateNamedGraphAddTriples()
{
try
{
//Options.UseBomForUtf8 = false;
StardogConnector stardog = this.GetConnection();
Graph g = new Graph();
g.LoadFromEmbeddedResource("VDS.RDF.Configuration.configuration.ttl");
g.BaseUri = new Uri("http://example.org/addGraph");
INode rdfType = g.CreateUriNode(new Uri(VDS.RDF.Parsing.RdfSpecsHelper.RdfType));
Graph types = new Graph();
types.Assert(g.GetTriplesWithPredicate(rdfType));
g.Retract(g.GetTriplesWithPredicate(rdfType));
//Save the Graph without the rdf:type triples
stardog.SaveGraph(g);
//Then add back in the rdf:type triples
stardog.UpdateGraph(g.BaseUri, types.Triples, null);
Graph h = new Graph();
stardog.LoadGraph(h, new Uri("http://example.org/addGraph"));
if (g.Triples.Count == h.Triples.Count)
{
Assert.AreEqual(g, h, "Retrieved Graph should be equal to the Saved Graph");
}
else
{
Assert.IsTrue(h.HasSubGraph(g), "Retrieved Graph should have the Saved Graph as a subgraph");
}
Assert.IsTrue(h.GetTriplesWithPredicate(rdfType).Any(), "Retrieved Graph should not contain any rdf:type Triples");
}
finally
{
//Options.UseBomForUtf8 = true;
}
}示例3: SparqlUpdateModifyWithOptional2
public void SparqlUpdateModifyWithOptional2()
{
Graph g = new Graph();
g.LoadFromFile("InferenceTest.ttl");
g.BaseUri = new Uri("http://example.org/vehicles/");
Graph def = new Graph();
def.Merge(g);
TripleStore store = new TripleStore();
store.Add(g);
store.Add(def);
Graph expected = new Graph();
expected.NamespaceMap.Import(g.NamespaceMap);
expected.Merge(g);
expected.Retract(expected.GetTriplesWithPredicate(expected.CreateUriNode("rdf:type")));
expected.Retract(expected.GetTriplesWithPredicate(expected.CreateUriNode("eg:Speed")));
String update = "PREFIX ex: <http://example.org/vehicles/> DELETE { ?s a ?type . ?s ex:Speed ?speed } INSERT { } USING <http://example.org/vehicles/> WHERE { ?s a ?type . OPTIONAL { ?s ex:Speed ?speed } }";
this.TestUpdate(store, expected, update);
}示例4: SparqlConstructWithOptional
public void SparqlConstructWithOptional()
{
Graph g = new Graph();
g.LoadFromFile("InferenceTest.ttl");
Graph expected = new Graph();
expected.Assert(g.GetTriplesWithPredicate(g.CreateUriNode("rdf:type")));
expected.Assert(g.GetTriplesWithPredicate(g.CreateUriNode("eg:Speed")));
String query = "PREFIX ex: <http://example.org/vehicles/> CONSTRUCT { ?s a ?type . ?s ex:Speed ?speed } WHERE { ?s a ?type . OPTIONAL { ?s ex:Speed ?speed } }";
this.TestConstruct(g, expected, query);
}示例5: SparqlUpdateModifyWithOptional
public void SparqlUpdateModifyWithOptional()
{
Graph g = new Graph();
g.LoadFromFile("InferenceTest.ttl");
g.BaseUri = new Uri("http://example.org/vehicles/");
Graph expected = new Graph();
expected.Assert(g.GetTriplesWithPredicate(g.CreateUriNode("rdf:type")));
expected.Assert(g.GetTriplesWithPredicate(g.CreateUriNode("eg:Speed")));
String update = "PREFIX ex: <http://example.org/vehicles/> DELETE { } INSERT { ?s a ?type . ?s ex:Speed ?speed } USING <http://example.org/vehicles/> WHERE { ?s a ?type . OPTIONAL { ?s ex:Speed ?speed } }";
this.TestUpdate(g, expected, update);
}