// TODO Should not be needed since we would rely on the underlying storage capabilities
/**
* Creates a new Values element.
* @param model the Model to create the Values in
* @param data the Table providing the actual data
* @return a new Values
*/
public static IValues createValues(SpinProcessor model, SparqlResultSet data, bool untyped)
{
IResource blank = untyped ? model.CreateResource() : model.CreateResource(SP.ClassValues);
IValues values = (IValues)blank.As(typeof(ValuesImpl));
List <IResource> vars = new List <IResource>();
foreach (String varName in data.Variables)
{
vars.Add(Resource.Get(RDFUtil.CreateLiteralNode(varName), model));
}
IResource varList = model.CreateList(vars.GetEnumerator());
values.AddProperty(SP.PropertyVarNames, varList);
IEnumerator <SparqlResult> bindings = data.Results.GetEnumerator();
if (bindings.MoveNext())
{
List <IResource> lists = new List <IResource>();
while (bindings.MoveNext())
{
List <IResource> nodes = new List <IResource>();
SparqlResult binding = bindings.Current;
foreach (String varName in data.Variables)
{
INode value = binding.Value(varName);
if (value == null)
{
nodes.Add(Resource.Get(SP.ClassPropertyUndef, model));
}
else
{
nodes.Add(Resource.Get(value, model));
}
}
lists.Add(model.CreateList(nodes.GetEnumerator()));
}
values.AddProperty(SP.PropertyBindings, model.CreateList(lists.GetEnumerator()));
}
return(values);
}
