recommended design for 'static const' member access

From: qazmlp (qazmlp1209_at_rediffmail.com)
Date: 01/31/04 

Date: 31 Jan 2004 03:36:15 -0800

What do you recommend among the following two designs, considering
all the standard design aspects ?

1)
class base
{
  public:
    virtual ~base() { }
    virtual long int getId() = 0;
  private:
    static const long int BASE_ID = 10000 ;
};

long int base::getId()
{
  return BASE_ID ;
}

class derived11 : public base
{
  public:
    virtual ~derived11()
    {
    }
    virtual long int getId()
    {
      return base::getId() + ID ;
    }

  private:
    static const long int ID = 11 ;
};

class derived12 : public base
{
  public:
    virtual ~derived12()
    {
    }
    virtual long int getId()
    {
      return base::getId() + ID ;
    }

  private:
    static const long int ID = 12 ;
};

2)
class base
{
  public:
    virtual long int getId() = 0;
  protected:
    static const long int BASE_ID = 10000 ;
};

class derived11 : public base
{
  public:
    virtual long int getId()
    {
      return BASE_ID + ID ;
    }

  private:
    static const long int ID = 11 ;
};

class derived12 : public base
{
  public:
    virtual long int getId()
    {
      return BASE_ID + ID ;
    }

  private:
    static const long int ID = 12 ;
};

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