Re: Introducing PlayDB (The Model, The Language, The DBMS)

From: Juergen Kindler <jkindler_at_freenet.de>
Date: Sun, 02 Nov 2003 19:49:34 +0100
Message-ID: <3FA551BE.1010008@freenet.de>

Bernard Peek wrote:

> In message <ba87a3cf.0310091820.50180857_at_posting.google.com>, Seun Osewa
> <seunosewa_at_inaira.com> writes
>

>> What if an object could be a member of any arbitrary set of classes?
>> What if this mapping of object to class was totally dynamic?

>
>
> I asked about such a system a while ago, the concepts you are looking
> for are multiple-inheritance and dynamic reclassification. I was pointed
> in the direction of Mumps.
>

Sadly enough, Mumps does not support inheritance and also nothing you call dynamic reclassification. Mumps is a strictly PROCEDURAL language. I've used it for some years (> 5 to be specific).

There are no classes in Mumps. There is even no schema. All there is (OK - most notable) is a persistent B* tree that allows for index entries that are strings, a strong support of string function and some ways to dynamically interpret strings/variables as code.

Objects and Mumps are two different worlds ...

Just my 2 cents

   Jürgen Received on Sun Nov 02 2003 - 12:49:34 CST