public void SparqlDateTimeEquality(String x, String y, bool equals)
{
IGraph g = new Graph();
INode dateTime1 = g.CreateLiteralNode(x, UriFactory.Create(XmlSpecsHelper.XmlSchemaDataTypeDateTime));
INode dateTime2 = g.CreateLiteralNode(y, UriFactory.Create(XmlSpecsHelper.XmlSchemaDataTypeDateTime));
if (equals)
{
Assert.IsTrue(SparqlSpecsHelper.DateTimeEquality(dateTime1, dateTime2));
Assert.IsTrue(SparqlSpecsHelper.DateTimeEquality(dateTime2, dateTime1));
Assert.IsTrue(SparqlSpecsHelper.Equality(dateTime1, dateTime2));
Assert.IsTrue(SparqlSpecsHelper.Equality(dateTime2, dateTime1));
Assert.IsFalse(SparqlSpecsHelper.Inequality(dateTime1, dateTime2));
Assert.IsFalse(SparqlSpecsHelper.Inequality(dateTime2, dateTime1));
}
else
{
Assert.IsFalse(SparqlSpecsHelper.DateTimeEquality(dateTime1, dateTime2));
Assert.IsFalse(SparqlSpecsHelper.DateTimeEquality(dateTime2, dateTime1));
Assert.IsFalse(SparqlSpecsHelper.Equality(dateTime1, dateTime2));
Assert.IsFalse(SparqlSpecsHelper.Equality(dateTime2, dateTime1));
Assert.IsTrue(SparqlSpecsHelper.Inequality(dateTime1, dateTime2));
Assert.IsTrue(SparqlSpecsHelper.Inequality(dateTime2, dateTime1));
}
}
/// <summary>
/// Evaluates the expression.
/// </summary>
/// <param name="context">Evaluation Context.</param>
/// <param name="bindingID">Binding ID.</param>
/// <returns></returns>
public override IValuedNode Evaluate(SparqlEvaluationContext context, int bindingID)
{
IValuedNode x = _leftExpr.Evaluate(context, bindingID);
IValuedNode y = _rightExpr.Evaluate(context, bindingID);
return(new BooleanNode(null, SparqlSpecsHelper.Inequality(x, y)));
}
/// <summary>
/// Computes the Effective Boolean Value of this Expression as evaluated for a given Binding
/// </summary>
/// <param name="context">Evaluation Context</param>
/// <param name="bindingID">Binding ID</param>
/// <returns></returns>
public override bool EffectiveBooleanValue(SparqlEvaluationContext context, int bindingID)
{
INode x = this._leftExpr.Value(context, bindingID);
INode y = this._rightExpr.Value(context, bindingID);
return(SparqlSpecsHelper.Inequality(x, y));
}
