/// <summary>
/// Makes triple from expression arguments
/// </summary>
/// <param name="m">method call arguments</param>
/// <returns></returns>
private Triple MakeTripleFromArguments(MethodCallExpression m)
{
return(SPARQL.Triple((string)((ConstantExpression)m.Arguments[1]).Value,
new List <string>()
{
string.Concat((string)((ConstantExpression)m.Arguments[2]).Value, " ", ((ConstantExpression)m.Arguments[3]).Value.ToString())
}));
}
/// <summary>
/// Evaluates Group expression
/// </summary>
/// <param name="m">method call expression</param>
/// <returns>SPARQL Where clause item</returns>
private IWhereItem VisitGroup(MethodCallExpression m)
{
var group = new Group(
SPARQL.Triple((string)((ConstantExpression)m.Arguments[1]).Value,
new List <string>()
{
string.Concat((string)((ConstantExpression)m.Arguments[2]).Value, " ", (string)((ConstantExpression)m.Arguments[3]).Value)
})
);
return(group);
}
/// <summary>
/// Evaluates Either expression
/// </summary>
/// <param name="m">method call expression</param>
/// <returns>SPARQL Where clause item</returns>
private IWhereItem VisitEither(MethodCallExpression m)
{
var union = new Union(
new Group(
SPARQL.Triple((string)((ConstantExpression)m.Arguments[1]).Value,
new List <string>()
{
string.Concat((string)((ConstantExpression)m.Arguments[2]).Value, " ", (string)((ConstantExpression)m.Arguments[3]).Value)
})
),
null
);
return(union);
}