Re: Enterprise using WO

On 22/05/2005, at 10:38 AM, Mark F. Murphy wrote:

>> Change notification among instances is something you cannot escape 
>> from. As you say you can use EOF based ones (David Neumman's) or 
>> other non EOF.
>
> I'm very skeptical of network based notifications.  I've just always 
> used the pattern that if I need fresh data from the database, I should 
> go back to the database (the original store) to get fresh data anyway. 
>  The database can scale and is built to do so.

Yes, but how do you know when to go back to the database?  That's the 
whole point of network-based notifications.  Otherwise you would have 
to check with the database every time you use the data (to see if it 
has changed).  No caching and no performance.

Or am I misunderstanding what you are saying?

Cheers,
Ashley.



--
Ashley Aitken
Perth, Western Australia
mrhatken at mac dot com
Skype Name: MrHatken (GMT + 8 Hours!)