RE: [CFCDev] Objects

[Mehdi, Agha]

Title: Message

My bad in designing Vendor as a subClass of Person. You're right that can not be treated as the subClass. I thought when you say subType, you mean a class composited into another class and subClass is the one, which extends another Class. Please correct me if I'm wrong. As far as the Communication Class is concerned for phone numbers and such stuff, I think it'd be better to ceate a seperate class to implement methods on that independant of Person Class methods, right?

 

Thanks for the help

 

Agha

-----Original Message-----
From: Brian Kotek [mailto:[EMAIL PROTECTED]
Sent: Wednesday, March 03, 2004 11:23 AM
To: [EMAIL PROTECTED]
Subject: RE: [CFCDev] Objects

First, is a Vendor truly a subtype of Person? This doesn't seem right. To me, a Vendor is usually a company, not a person.

 

Also, when you say Address is a "subType", do you mean that Address extends Employee? If so, this is not correct. Address should be composited into Employee.

 

The choice to break things like phone numbers and email into separate classes is up to you, depending on the behavior you need. If you are just getting the phone number, you probably don't need a separate class. If you need to validate the number, grab only the area code, handle country codes, etc., then a separate phoneNumber object might make sense.

 

regards,

 

Brian

 

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mehdi, Agha
Sent: Wednesday, March 03, 2004 1:27 PM
To: '[EMAIL PROTECTED]'
Subject: [CFCDev] Objects

Hi,

I am designing an Object Model for one of my applications and this is my first time doing that. I have a Person Class as the base class and Employee, Customer, Vendor Classes extend that class. I also have an Address Class that works as a subType of each of the subClasses. The Person Class also holds communication information like homePhone, cellPhone, workPhone, fax, email etc. I was wondering if it would be worth doing to create a separate class for communication attributes to work as a subType for Person Class. Does it seem to be a good way or just another step?

Any thoughts will be appreciated

Agha

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