Examples of org.apache.clerezza.rdf.utils.RdfList

org.apache.clerezza.rdf.utils.RdfList
An implementation of an java.util.List backed by an RDF collection (rdf:List). The list allows modification that are reflected to the underlying TripleCollection. It reads the data from the TripleCollection when it is first needed, so changes to the TripleCollection affecting the rdf:List may or may not have an effect on the values returned by instances of this class. For that reason only one instance of this class should be used for accessing an rdf:List of sublists thereof when the lists are being modified, having multiple lists exclusively for read operations (such as for immutable TripleCollections) is not problematic. @author rbn, mir

  }


  private List<Resource> getPropertyList(GraphNode r) {
    Iterator<GraphNode> propertyLists = r.getObjectNodes(CRIS.propertyList);
    if (propertyLists.hasNext()) {
      List<Resource> rdfList = new RdfList(propertyLists.next());
      return rdfList;
    }
    throw new RuntimeException("There is no propertyList on this definition.");
  }

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      BNode virtualProperty = new BNode();
      definitionGraph.add(new TripleImpl(virtualProperty, RDF.type, CRIS.JoinVirtualProperty));
      BNode listBNode = new BNode();
      definitionGraph.add(new TripleImpl(virtualProperty, CRIS.propertyList, listBNode));
      List rdfList = new RdfList(listBNode, definitionGraph);
      for (VirtualProperty uri : joinVirtualProperty.properties) {
        rdfList.add(asResource(uri));
      }
      return virtualProperty;
    } else if (vp instanceof PathVirtualProperty) {
      PathVirtualProperty pathVirtualProperty = (PathVirtualProperty) vp;
      if (pathVirtualProperty.properties.isEmpty()) {
        throw new RuntimeException("vp " + vp + " conatins an empty list");
      }
      BNode virtualProperty = new BNode();
      definitionGraph.add(new TripleImpl(virtualProperty, RDF.type, CRIS.PathVirtualProperty));
      BNode listBNode = new BNode();
      definitionGraph.add(new TripleImpl(virtualProperty, CRIS.propertyList, listBNode));
      List rdfList = new RdfList(listBNode, definitionGraph);
      for (UriRef uri : pathVirtualProperty.properties) {
        rdfList.add(uri);
      }
      return virtualProperty;
    }


    throw new RuntimeException("Could not create resource.");

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            BNode virtualProperty = new BNode();
            definitionGraph.add(new TripleImpl(virtualProperty, RDF.type, CRIS.JoinVirtualProperty));
            BNode listBNode = new BNode();
            definitionGraph.add(new TripleImpl(virtualProperty, CRIS.propertyList, listBNode));
            List rdfList = new RdfList(listBNode, definitionGraph);
            for (VirtualProperty uri : joinVirtualProperty.properties) {
                rdfList.add(asResource(uri));
            }
            return virtualProperty;
        } else if (vp instanceof PathVirtualProperty) {
            PathVirtualProperty pathVirtualProperty = (PathVirtualProperty) vp;
            if (pathVirtualProperty.properties.isEmpty()) {
                throw new RuntimeException("vp " + vp + " conatins an empty list");
            }
            BNode virtualProperty = new BNode();
            definitionGraph.add(new TripleImpl(virtualProperty, RDF.type, CRIS.PathVirtualProperty));
            BNode listBNode = new BNode();
            definitionGraph.add(new TripleImpl(virtualProperty, CRIS.propertyList, listBNode));
            List rdfList = new RdfList(listBNode, definitionGraph);
            for (UriRef uri : pathVirtualProperty.properties) {
                rdfList.add(uri);
            }
            return virtualProperty;
        }


        throw new RuntimeException("Could not create resource.");

View Full Code Here

    }


    private List<Resource> getPropertyList(GraphNode r) {
        Iterator<GraphNode> propertyLists = r.getObjectNodes(CRIS.propertyList);
        if (propertyLists.hasNext()) {
            List<Resource> rdfList = new RdfList(propertyLists.next());
            return rdfList;
        }
        throw new RuntimeException("There is no propertyList on this definition.");
    }

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