Examples of RdfList

com.hp.hpl.jena.rdf.model.RDFList

Provides a convenience encapsulation for lists formed from chains of RDF statements arranged to form a head/tail cons-cell structure. The properties that form the links between cells, and from cells to values, are specified by a vocabulary interface, so this abstraction is designed to cope equally well with DAML lists, RDF lists, and user-defined lists.

A well-formed list has cells that are made up of three statements: one denoting the rdf:type of the list cell, one denoting the link to the value of the list at that point, and one pointing to the list tail. If a list cell is not well-formed, list operations may fail in unpredictable ways. However, to explicitly check that the list is well-formed at all times is expensive. Therefore the list operates in two modes: in strict mode, the well-formedness of the list is checked at the start of each list operation, and an {@link InvalidListException} is thrown if the list is notwell- formed. This ensures that list operations are safe, but will slow down processing. In non-strict mode, this checking is switched off, but can be invoked explicitly by clients by calling {@link #isValid}. By default, RDF lists are processed in non-strict mode.
edu.mit.simile.fresnel.util.RDFList
Convenience class for rdf:List resources. @author ryanlee
edu.stanford.smi.protegex.owl.model.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

Examples of com.hp.hpl.jena.rdf.model.RDFList

        model.createResource(TestList.NS + "b"),
        model.createResource(TestList.NS + "c"),
        model.createResource(TestList.NS + "d"),
        model.createResource(TestList.NS + "e"), };


    final RDFList l1 = getListRoot(model);


    // check the indexes are correct
    for (int i = 0; i < toGet.length; i++)
    {
      Assert.assertTrue("list should contain element " + i,
          l1.contains(toGet[i]));
      Assert.assertEquals("list element " + i + " is not correct", i,
          l1.indexOf(toGet[i]));
    }
  }

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Examples of com.hp.hpl.jena.rdf.model.RDFList


  public void testIndex2()
  {


    final Resource nil = model.getResource(RDF.nil.getURI());
    RDFList list = nil.as(RDFList.class);


    final Resource r = model.createResource(TestList.NS + "a");


    // cons each a's onto the front of the list
    for (int i = 0; i < 10; i++)
    {
      list = list.cons(r);
    }


    // now index them back again
    for (int j = 0; j < 10; j++)
    {
      Assert.assertEquals("index of j'th item should be j", j,
          list.indexOf(r, j));
    }


  }

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Examples of com.hp.hpl.jena.rdf.model.RDFList

  }


  public void testListEquals()
  {
    final Resource nil = model.getResource(RDF.nil.getURI());
    final RDFList nilList = nil.as(RDFList.class);


    // create a list of foos
    final Resource[] r0 = new Resource[] {
        model.createResource(TestList.NS + "a"), // canonical
        model.createResource(TestList.NS + "b"),
        model.createResource(TestList.NS + "c"),
        model.createResource(TestList.NS + "d"),
        model.createResource(TestList.NS + "e") };
    final Resource[] r1 = new Resource[] {
        model.createResource(TestList.NS + "a"), // same
        model.createResource(TestList.NS + "b"),
        model.createResource(TestList.NS + "c"),
        model.createResource(TestList.NS + "d"),
        model.createResource(TestList.NS + "e") };
    final Resource[] r2 = new Resource[] {
        model.createResource(TestList.NS + "a"), // one shorter
        model.createResource(TestList.NS + "b"),
        model.createResource(TestList.NS + "c"),
        model.createResource(TestList.NS + "d") };
    final Resource[] r3 = new Resource[] {
        model.createResource(TestList.NS + "a"), // elements
        // swapped
        model.createResource(TestList.NS + "b"),
        model.createResource(TestList.NS + "d"),
        model.createResource(TestList.NS + "c"),
        model.createResource(TestList.NS + "e") };
    final Resource[] r4 = new Resource[] {
        model.createResource(TestList.NS + "a"), // different
        // name
        model.createResource(TestList.NS + "b"),
        model.createResource(TestList.NS + "c"),
        model.createResource(TestList.NS + "D"),
        model.createResource(TestList.NS + "e") };


    final Object[][] testSpec = new Object[][] { { r0, r1, Boolean.TRUE },
        { r0, r2, Boolean.FALSE }, { r0, r3, Boolean.FALSE },
        { r0, r4, Boolean.FALSE }, { r1, r2, Boolean.FALSE },
        { r1, r3, Boolean.FALSE }, { r1, r4, Boolean.FALSE },
        { r2, r3, Boolean.FALSE }, { r2, r4, Boolean.FALSE }, };


    for (int i = 0; i < testSpec.length; i++)
    {
      final RDFList l0 = nilList.append(Arrays.asList(
          (Resource[]) testSpec[i][0]).iterator());
      final RDFList l1 = nilList.append(Arrays.asList(
          (Resource[]) testSpec[i][1]).iterator());
      final boolean expected = ((Boolean) testSpec[i][2]).booleanValue();


      Assert.assertEquals("sameListAs testSpec[" + i + "] incorrect",
          expected, l0.sameListAs(l1));
      Assert.assertEquals("sameListAs testSpec[" + i
          + "] (swapped) incorrect", expected, l1.sameListAs(l0));
    }
  }

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Examples of com.hp.hpl.jena.rdf.model.RDFList

        model.createResource(TestList.NS + "b"),
        model.createResource(TestList.NS + "c"),
        model.createResource(TestList.NS + "d"),
        model.createResource(TestList.NS + "e"), };


    final RDFList l1 = getListRoot(model);


    // test normal gets
    for (int i = 0; i < toGet.length; i++)
    {
      Assert.assertEquals("list element " + i + " is not correct",
          toGet[i], l1.get(i));
    }


    // now test we get an exception for going beyong the end of the list
    boolean gotEx = false;
    try
    {
      l1.get(toGet.length + 1);
    }
    catch (final ListIndexException e)
    {
      gotEx = true;
    }

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Examples of com.hp.hpl.jena.rdf.model.RDFList


  public void testMap1()
  {
    model.read(getFileName("ontology/list5.rdf"));


    final RDFList root = getListRoot(model);
    TestList.iteratorTest(root.mapWith(new Map1<RDFNode, String>() {
      @Override
      public String map1( final RDFNode x )
      {
        return ((Resource) x).getLocalName();
      }

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Examples of com.hp.hpl.jena.rdf.model.RDFList


  public void testReduce()
  {
    model.read(getFileName("ontology/list5.rdf"));


    final RDFList root = getListRoot(model);


    final RDFList.ReduceFn f = new RDFList.ReduceFn() {
      @Override
      public Object reduce( final RDFNode n, final Object acc )
      {
        return ((String) acc) + ((Resource) n).getLocalName();
      }
    };


    Assert.assertEquals(
        "Result of reduce should be concatentation of local names",
        "abcde", root.reduce(f, ""));
  }

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Examples of com.hp.hpl.jena.rdf.model.RDFList


  public void testRemove()
  {


    final Resource nil = model.getResource(RDF.nil.getURI());
    RDFList list0 = nil.as(RDFList.class);
    RDFList list1 = nil.as(RDFList.class);


    final Resource r0 = model.createResource(TestList.NS + "x");
    final Resource r1 = model.createResource(TestList.NS + "y");
    final Resource r2 = model.createResource(TestList.NS + "z");


    for (int i = 0; i < 10; i++)
    {
      list0 = list0.cons(r0);
      list1 = list1.cons(r1);
    }


    // delete the elements of list0 one at a time
    while (!list0.isEmpty())
    {
      list0 = list0.removeHead();
      checkValid("removeTest0", list0, true);
    }


    // delete all of list1 in one go
    list1.removeList();


    // model should now be empty
    Assert.assertEquals("Model should be empty after deleting two lists",
        0, model.size());


    // selective remove
    RDFList list2 = (nil.as(RDFList.class)).cons(r2).cons(r1).cons(r0);


    Assert.assertTrue("list should contain x ", list2.contains(r0));
    Assert.assertTrue("list should contain y ", list2.contains(r1));
    Assert.assertTrue("list should contain z ", list2.contains(r2));


    list2 = list2.remove(r1);
    Assert.assertTrue("list should contain x ", list2.contains(r0));
    Assert.assertTrue("list should contain y ", !list2.contains(r1));
    Assert.assertTrue("list should contain z ", list2.contains(r2));


    list2 = list2.remove(r0);
    Assert.assertTrue("list should contain x ", !list2.contains(r0));
    Assert.assertTrue("list should contain y ", !list2.contains(r1));
    Assert.assertTrue("list should contain z ", list2.contains(r2));


    list2 = list2.remove(r2);
    Assert.assertTrue("list should contain x ", !list2.contains(r0));
    Assert.assertTrue("list should contain y ", !list2.contains(r1));
    Assert.assertTrue("list should contain z ", !list2.contains(r2));
    Assert.assertTrue("list should be empty", list2.isEmpty());
  }

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Examples of com.hp.hpl.jena.rdf.model.RDFList


    final Literal[] toSet = new Literal[] { model.createLiteral("a"),
        model.createLiteral("b"), model.createLiteral("c"),
        model.createLiteral("d"), model.createLiteral("e"), };


    final RDFList l1 = getListRoot(model);


    // change all the values
    for (int i = 0; i < toSet.length; i++)
    {
      l1.replace(i, toSet[i]);
    }


    // then check them
    for (int i = 0; i < toSet.length; i++)
    {
      Assert.assertEquals("list element " + i + " is not correct",
          toSet[i], l1.get(i));
    }


    // now test we get an exception for going beyong the end of the list
    boolean gotEx = false;
    try
    {
      l1.replace(toSet.length + 1, toSet[0]);
    }
    catch (final ListIndexException e)
    {
      gotEx = true;
    }

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Examples of com.hp.hpl.jena.rdf.model.RDFList

    model.add(list, RDF.type, RDF.List);
    model.add(list, RDF.first, "fred");
    model.add(list, RDF.rest, nil);


    model.add(root, p, list);
    final RDFList l1 = getListRoot(model);
    checkValid("sethead1", l1, true);


    Assert.assertEquals("List head should be 'fred'", "fred",
        ((Literal) l1.getHead()).getString());


    l1.setHead(model.createTypedLiteral(42));
    checkValid("sethead2", l1, true);
    Assert.assertEquals("List head should be '42'", 42,
        ((Literal) l1.getHead()).getInt());


  }

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Examples of edu.mit.simile.fresnel.util.RDFList

      if (facetI.hasNext()) {
        Statement facetStmt = (Statement) facetI.next();
        Value facetsNode = facetStmt.getObject();
        if (facetI.hasNext()) throw new UnresolvableException("More than one :facets value available");
        if (facetsNode instanceof Resource && RDFList.isRDFList(source, (Resource) facetsNode)) {
          RDFList facetRDFList = new RDFList(source, (Resource) facetsNode);
          if (facetRDFList.isValid()) {
            for (Iterator listI = facetRDFList.iterator(); listI.hasNext(); ) {
              Resource facetNode = (Resource) listI.next();
              Facet facet = new Facet(facetNode);
              out.addFacet(facet);
            }
          } else {
            throw new ParsingException(facetsNode.toString() + "is not a valid rdf:List");
          }
        }
      }
      facetI.close();


            RepositoryResult<Statement> hidesI = conn.getStatements(focus, Facets.hides, (Value) null, false);
      if (hidesI.hasNext()) {
        Statement facetStmt = hidesI.next();
        Value facetsNode = facetStmt.getObject();
        if (hidesI.hasNext()) throw new UnresolvableException("More than one :hides value available");
        if (facetsNode instanceof Resource && RDFList.isRDFList(source, (Resource) facetsNode)) {
          RDFList facetRDFList = new RDFList(source, (Resource) facetsNode);
          if (facetRDFList.isValid()) {
            for (Iterator listI = facetRDFList.iterator(); listI.hasNext(); ) {
              Resource facetNode = (Resource) listI.next();
              Facet facet = new Facet(facetNode);
              out.addHide(facet);
            }
          } else {

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