本文整理汇总了Java中org.apache.jena.sparql.util.graph.GraphUtils类的典型用法代码示例。如果您正苦于以下问题：Java GraphUtils类的具体用法？Java GraphUtils怎么用？Java GraphUtils使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
GraphUtils类属于org.apache.jena.sparql.util.graph包，在下文中一共展示了GraphUtils类的3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Java代码示例。
示例1: extractGraphTags2
import org.apache.jena.sparql.util.graph.GraphUtils; //导入依赖的package包/类
public static Collection<?> extractGraphTags2(org.apache.jena.graph.Graph graph) {
// TODO: All nodes does not include predicates
Set<Node> result = Streams.stream(GraphUtils.allNodes(graph))
.filter(n -> n.isURI() || n.isLiteral())
.collect(Collectors.toSet());
return result;
}
开发者ID:SmartDataAnalytics，项目名称:SubgraphIsomorphismIndex，代码行数:9，代码来源:SubgraphIsomorphismIndexJena.java
示例2: open
import org.apache.jena.sparql.util.graph.GraphUtils; //导入依赖的package包/类
@Override
public Model open(Assembler a, Resource root, Mode mode)
{
String url = GraphUtils.getStringValue(root, ResourceFactory.createProperty(JENA_NS + "url")) ;
try {
// FIXME: Read more properties. Cache config?
LinkedDataFragmentGraph graph = new LinkedDataFragmentGraph(url);
return ModelFactory.createModelForGraph(graph);
} catch (Exception e) {
e.printStackTrace();
throw new AssemblerException(root, "Error reading LDF url: "+url+" / "+e.toString());
}
}
示例3: main
import org.apache.jena.sparql.util.graph.GraphUtils; //导入依赖的package包/类
public static void main(String... argv)
{
String assemblerFile = "Store/tdb-assembler.ttl" ;
// Find a particular description in the file where there are several:
Model spec = RDFDataMgr.loadModel(assemblerFile) ;
// Find the right starting point for the description in some way.
Resource root = null ;
if ( false )
// If you know the Resource URI:
root = spec.createResource("http://example/myChoiceOfURI" );
else
{
// Alternatively, look for the a single resource of the right type.
try {
// Find the required description - the file can contain descriptions of many different types.
root = GraphUtils.findRootByType(spec, VocabTDB.tDatasetTDB) ;
if ( root == null )
throw new JenaException("Failed to find a suitable root") ;
} catch (TypeNotUniqueException ex)
{ throw new JenaException("Multiple types for: "+DatasetAssemblerVocab.tDataset) ; }
}
Dataset ds = (Dataset)Assembler.general.open(root) ;
}