Re: Mixing OO and DB

Bob Badour wrote:

> S Perryman wrote:

>> There is no "principle" . You appear to have been sucked in like the 
>> rest.
>> Re: http://groups.google.com/group/comp.object/msg/a2f843524b98522b

> Interesting. Now allegedly, there is no principle in the Liskov
> Substitution Principle.

The "LSP" is merely "marketing speak" concocted by other people.

> Is that like "there is no there there" ?

In a way, yes. :-)

Specifically : what "principle" is actually in effect here ??

That if some type T2 happens to be substitutable for T1 for one particular context, that T2 should be a Liskov/Wing subtype of T1 ??

Hardly "value-added" (wrt to the Liskov/Wing definitions) is it.

Regards,
Steven Perryman Received on Thu Feb 21 2008 - 11:04:57 CST