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


  
  private List<String> _getDataRangeElementList(DataRange dataRange) {
    List<String> list = new ArrayList<String>();
    if ( dataRange != null ) {
      RDFList rdfList = dataRange.getOneOf();
      while ( rdfList != null && ! rdfList.isEmpty() ) {
        RDFNode elem = rdfList.getHead();
        Literal obj = (Literal) elem;
        String name = obj.getLexicalForm();
        list.add(name);
        rdfList = rdfList.getTail();
      }
    }
    return list;
  }

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

    Assert.assertNotNull("Root resource should not be null", root);


    final Resource listHead = root.getRequiredProperty(
        m.getProperty(TestList.NS + "p")).getResource();


    final RDFList l = listHead.as(RDFList.class);
    Assert.assertNotNull("as(RDFList) should not return null for root", l);


    return l;
  }

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


    final Resource root = model.createResource(TestList.NS + "root");
    final Property p = model.createProperty(TestList.NS, "p");


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


    final Resource[] toAdd = new Resource[] {
        model.createResource(TestList.NS + "a"),
        model.createResource(TestList.NS + "b"),
        model.createResource(TestList.NS + "c"),
        model.createResource(TestList.NS + "d"),
        model.createResource(TestList.NS + "e"), };


    // add each of these resources onto the end of the list
    for (final Resource element : toAdd)
    {
      final RDFList list0 = list.with(element);


      checkValid("addTest0", list0, true);
      Assert.assertTrue("added'ed lists should be equal",
          list.equals(nil) || list0.equals(list));


      list = list0;
    }


    // relate the root to the list

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

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


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


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


    // create a list of foos
    for (int i = 0; i < 5; i++)
    {
      list = list.cons(r);
    }


    final int listLen = list.size();


    // now append foos to the root list
    final RDFList root = getListRoot(model);
    final int rootLen = root.size();


    final RDFList appended = root.append(list);


    // original list should be unchanged
    checkValid("appendTest0", root, true);
    Assert.assertEquals("Original list should be unchanged", rootLen,
        root.size());


    checkValid("appendTest1", list, true);
    Assert.assertEquals("Original list should be unchanged", listLen,
        list.size());


    // new list should be length of combined
    checkValid("appendTest2", appended, true);
    Assert.assertEquals("Appended list not correct length", rootLen
        + listLen, appended.size());
  }

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


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


    final RDFList root = getListRoot(model);


    class MyApply implements RDFList.ApplyFn
    {
      String collect = "";


      @Override
      public void apply( final RDFNode n )
      {
        collect = collect + ((Resource) n).getLocalName();
      }
    }


    final MyApply f = new MyApply();
    root.apply(f);


    Assert.assertEquals(
        "Result of apply should be concatentation of local names",
        "abcde", f.collect);

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

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


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


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


    // create a list of foos
    for (int i = 0; i < 5; i++)
    {
      list = list.cons(r);
    }


    final int listLen = list.size();


    // now append foos to the root list
    final RDFList root = getListRoot(model);
    final int rootLen = root.size();
    root.concatenate(list);


    // original list should be unchanged
    checkValid("concatTest0", list, true);
    Assert.assertEquals("Original list should be unchanged", listLen,
        list.size());


    // but lhs list has changed
    checkValid("concatTest1", root, true);
    Assert.assertEquals("Root list should be new length",
        rootLen + listLen, root.size());
  }

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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 aList = model.createList().cons(a);
    final RDFList rsList = model.createList(rs);


    // concatenate the above resources onto the empty list
    aList.concatenate(rsList);
    checkValid("concatTest3", aList, true);


    final RDFList root = getListRoot(model);
    Assert.assertTrue("Constructed and loaded lists should be the same",
        aList.sameListAs(root));
  }

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

  {
    final Resource root = model.createResource(TestList.NS + "root");
    final Property p = model.createProperty(TestList.NS, "p");


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


    final Resource[] toAdd = new Resource[] {
        model.createResource(TestList.NS + "e"),
        model.createResource(TestList.NS + "d"),
        model.createResource(TestList.NS + "c"),
        model.createResource(TestList.NS + "b"),
        model.createResource(TestList.NS + "a"), };


    // cons each of these resources onto the front of the list
    for (final Resource element : toAdd)
    {
      final RDFList list0 = list.cons(element);


      checkValid("constest1", list0, true);
      Assert.assertTrue("cons'ed lists should not be equal",
          !list0.equals(list));


      list = list0;
    }


    // relate the root to the list

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

    for (int i = 0; i <= 5; i++)
    {
      model.removeAll();
      model.read( getFileName("ontology/list" + i + ".rdf"));


      final RDFList l0 = getListRoot(model);
      Assert.assertEquals("List size should be " + i, i, l0.size());
    }


  }

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


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


    RDFList l0 = getListRoot(model);


    final String[] names = { "a", "b", "c", "d", "e" };
    for (final String name : names)
    {
      Assert.assertEquals("head of list has incorrect URI", TestList.NS
          + name, ((Resource) l0.getHead()).getURI());
      l0 = l0.getTail();
    }
  }

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