/// <summary>Devuelve los caracteres especificos para la operación solicitada</summary>
protected string dbOpeToString(dbOpe oper)
{
switch (oper)
{
case dbOpe.Addition:
return("+");
case dbOpe.Substraction:
return("-");
case dbOpe.Multiplication:
return("*");
case dbOpe.Division:
return("/");
case dbOpe.Modulo:
return("%");
case dbOpe.Case:
return("WHEN");
case dbOpe.Else:
return("ELSE");
case dbOpe.Comma:
return(",");
case dbOpe.As:
return("AS");
}
return("");
}
public Particle(dbOpe oper, Expression expr)
{
Operation = oper;
SetValue(expr);
}
/// <summary>Operador general</summary>
private Expression Operate(dbOpe oper, Expression expr)
{
return(Op(new Particle(oper, expr)));
}
public Particle(dbOpe oper, string val)
{
Operation = oper;
Value = val;
}