/// <summary>Visit a literal.</summary>
/// <param name="literal">Literal to be visited.</param>
protected override void VisitLiteral(Literal literal)
{
if (literal.Value == null)
{
VisitNullLiteral(literal.ValueType);
}
else
{
string valueString;
switch (literal.ValueType.FullName)
{
default:
if (literal.Value is EntityId)
{
valueString = String.Format("<{0}>", literal.Value);
}
else
{
valueString = String.Format("\"{0}\"", literal.Value);
}
break;
case "System.Byte":
case "System.SByte":
case "System.Int16":
case "System.UInt16":
case "System.Int32":
case "System.UInt32":
case "System.Int64":
case "System.UInt64":
valueString = literal.Value.ToString();
break;
case "System.Char":
case "System.String":
valueString = String.Format("\"{0}\"^^xsd:string", literal.Value);
break;
case "System.Single":
case "System.Double":
case "System.Decimal":
valueString = String.Format(CultureInfo.InvariantCulture, "{0}", literal.Value);
break;
case "System.DateTime":
valueString = String.Format(CultureInfo.InvariantCulture, "\"{0}\"^^xsd:dateTime", literal.Value);
break;
case "System.Uri":
valueString = String.Format("<{0}>", literal.Value);
break;
}
_commandText.Append(valueString);
}
}
/// <summary>Visit a literal.</summary> /// <param name="literal">Literal to be visited.</param> protected abstract void VisitLiteral(Literal literal);