Re: Databases as objects


Patrick May wrote:
"topmind" <topmind@xxxxxxxxxxxxxxxx> writes:
Neo wrote:
If you take away inheritence, you get "network structures" (AKA
tangled pasta). Dr. Codd sought to escape those by applying set
theory, and network structures thankfully fell out of favor,
until the OO crowd tried to bring them back from the dead.

Can you give an example of such as tangled pasta?

OO Visitor pattern.

The Visitor pattern provides two capabilities: 1) simulation of
double dispatch and 2) non-intrusively adding new operations to
existing classes. Both of these address limitations of languages such
as C++ and Java. The existence of this pattern does not demonstrate a
general flaw in the object oriented approach.

How about you Visitor defenders present a somewhat practical biz
example where Visitor allegedly makes maintenence easier.


Sincerely,

Patrick


-T-

.

Relevant Pages

  • Re: Databases as objects
    ... Can you give an example of such as tangled pasta? ... The Visitor pattern provides two capabilities: ... example where Visitor allegedly makes maintenence easier. ...
    (comp.object)
  • Re: Databases as objects
    ... Can you give an example of such as tangled pasta? ... The Visitor pattern provides two capabilities: ... I don't care how you kick its ass, just do it and show it. ...
    (comp.object)