public void SparqlMultisetLeftJoin()
{
//Create a load of Nodes to use in the tests
Graph g = new Graph();
g.NamespaceMap.AddNamespace(String.Empty, new Uri("http://example.org"));
IUriNode s1 = g.CreateUriNode(":s1");
IUriNode s2 = g.CreateUriNode(":s2");
IUriNode p1 = g.CreateUriNode(":p1");
IUriNode p2 = g.CreateUriNode(":p2");
IUriNode rdfsLabel = g.CreateUriNode("rdfs:label");
ILiteralNode o1 = g.CreateLiteralNode("Some Text");
ILiteralNode o2 = g.CreateLiteralNode("1", new Uri(XmlSpecsHelper.XmlSchemaDataTypeInteger));
//Create an ID and Null Multiset
IdentityMultiset id = new IdentityMultiset();
NullMultiset nullset = new NullMultiset();
//Create and Populate a Multiset
Multiset m = new Multiset();
Set s = new Set();
s.Add("s", s1);
s.Add("p", p1);
s.Add("o", o1);
m.Add(s);
s = new Set();
s.Add("s", s2);
s.Add("p", p2);
s.Add("o", o2);
m.Add(s);
//Create and Populate another Multiset
Multiset n = new Multiset();
s = new Set();
s.Add("s", s1);
s.Add("label", o1);
n.Add(s);
//Create and Populate another Multiset
Multiset d = new Multiset();
s = new Set();
s.Add("s1", s1);
s.Add("p1", p1);
s.Add("o1", o1);
d.Add(s);
s = new Set();
s.Add("s1", s2);
s.Add("p1", p2);
s.Add("o1", o2);
d.Add(s);
//Show the Sets
Console.WriteLine("LHS");
foreach (Set set in m.Sets)
{
Console.WriteLine(set.ToString());
}
Console.WriteLine();
Console.WriteLine("RHS");
foreach (Set set in n.Sets)
{
Console.WriteLine(set.ToString());
}
Console.WriteLine();
Console.WriteLine("D");
foreach (Set set in d.Sets)
{
Console.WriteLine(set.ToString());
}
Console.WriteLine();
//Try a Join to Identity
Console.WriteLine("Join ID-LHS");
BaseMultiset join = id.Join(m);
foreach (Set set in join.Sets)
{
Console.WriteLine(set.ToString());
}
Console.WriteLine();
//Try a Join to Identity
Console.WriteLine("Join LHS-ID");
join = m.Join(id);
foreach (Set set in join.Sets)
{
Console.WriteLine(set.ToString());
}
Console.WriteLine();
//Try a Join to Null
Console.WriteLine("Join NULL-LHS");
join = nullset.Join(m);
foreach (Set set in join.Sets)
{
Console.WriteLine(set.ToString());
}
Console.WriteLine();
//Try a Join to Null
Console.WriteLine("Join LHS-NULL");
join = m.Join(nullset);
foreach (Set set in join.Sets)
{
Console.WriteLine(set.ToString());
}
Console.WriteLine();
//Try a LeftJoin
Console.WriteLine("LeftJoin NULL-LHS");
BaseMultiset leftjoin = nullset.LeftJoin(m, new BooleanExpressionTerm(true));
foreach (Set set in leftjoin.Sets)
{
Console.WriteLine(set.ToString());
}
Console.WriteLine();
//Try a LeftJoin
Console.WriteLine("LeftJoin LHS-NULL");
leftjoin = m.LeftJoin(nullset, new BooleanExpressionTerm(true));
foreach (Set set in leftjoin.Sets)
{
Console.WriteLine(set.ToString());
}
Console.WriteLine();
//Try a Join
Console.WriteLine("Join LHS-RHS");
join = m.Join(n);
foreach (Set set in join.Sets)
{
Console.WriteLine(set.ToString());
}
Console.WriteLine();
//Try a LeftOuterJoin
Console.WriteLine("LeftJoin LHS-RHS");
leftjoin = m.LeftJoin(n, new BooleanExpressionTerm(true));
foreach (Set set in leftjoin.Sets)
{
Console.WriteLine(set.ToString());
}
Console.WriteLine();
//Try a Produce
Console.WriteLine("Product LHS-RHS");
BaseMultiset product = m.Product(n);
foreach (Set set in product.Sets)
{
Console.WriteLine(set.ToString());
}
Console.WriteLine();
//Try a Join to Self
Console.WriteLine("Product LHS-D");
product = m.Product(d);
foreach (Set set in product.Sets)
{
Console.WriteLine(set.ToString());
}
Console.WriteLine();
//Try a Union
Console.WriteLine("Union LHS-RHS");
BaseMultiset union = m.Union(n);
foreach (Set set in union.Sets)
{
Console.WriteLine(set.ToString());
}
Console.WriteLine();
}