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Re: Object Class and Data Type

From: Tom Hester <$$tom_at_metadata.com>
Date: Tue, 30 Mar 2004 07:23:18 -0800
Message-ID: <d2b19$406990ec$45033832$24651@msgid.meganewsservers.com>


Of course you are right. The purpose of class and type are entirely different. A class hierarchy is intended to relate entities based on common behavior; however, a set of data types is intended to elaborate the differences between sets of values. So, for example, it is common for a class hierarchy to have a single root; often called object or entity. But data types rarely if ever inherit from a single basic data type. Furthermore, class itself is typically defined as an object with certain behaviors. On the other hand, one never sees data type, a base type, defined as a data type!

 "Laconic2" <laconic2_at_comcast.net> wrote in message news:0fudnaF9l9x-kvXdRVn-uQ_at_comcast.com...
> Over in the OTLT thread, I saw where someone used the name "CLASS" to
> describe the code_type. It seems to me that many people use "class" and
> "type" as though they were synonyms. It seems to me that they are not.
>
> Any thoughts?
>
>
>
>
Received on Tue Mar 30 2004 - 09:23:18 CST

Original text of this message

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