/// <summary>
/// Creates a SqlExpression which represents a constant typed value.
/// </summary>
/// <param name="val">SqlConstant instance</param>
/// <returns>A SqlExpression which represents a date value</returns>
public static OmExpression Constant(OmConstant val)
{
OmExpression expr = new OmExpression();
expr.ValueCode = ExprValCode.SqlConst;
expr.ConstantValue = val;
expr.Type = OmExpressionType.Constant;
return(expr);
}
/// <summary>
/// Creates a SqlExpression which represents a numeric value.
/// </summary>
/// <param name="val">Value of the expression</param>
/// <returns>A SqlExpression which represents a numeric value</returns>
public static OmExpression Number(double val)
{
return(Constant(OmConstant.Number(val)));
}
/// <summary>
/// Creates a SqlExpression which represents a date value.
/// </summary>
/// <param name="val">Value of the expression</param>
/// <returns>A SqlExpression which represents a date value</returns>
public static OmExpression Date(DateTime val)
{
return(Constant(OmConstant.Date(val)));
}
/// <summary>
/// Creates a SqlExpression which represents a textual value.
/// </summary>
/// <param name="val">Value of the expression</param>
/// <returns>A SqlExpression which represents a textual value</returns>
public static OmExpression String(string val)
{
return(Constant(OmConstant.String(val)));
}