You could store the data in Application context as you've stated, but provide a
mechanism for that data to be refreshed (either automatically or manually)
without restarting the server. I haven't implemented this at all, but it seems
possible. I've considered using some sort of date/time stamp, a boolean flag,
or some other means to make the data automatically refresh. Otherwise you'd
have to create some admin actions that would manually be invoked to refresh the
data.
-----Original Message-----
From: [EMAIL PROTECTED]
Sent: Tuesday, April 17, 2001 8:34 AM
To: [EMAIL PROTECTED]
Subject: RE: how to cache lists?
Alex, It is a good idea from a developers point of view. But when U say this
to an IT manager and also tell him that U have to restart the webserver when
ever new data is added, he/she will not allow U to do that. I faced the same
situation but gave up on the idea of caching the data at application level.
Thanks,
Uday.
-----Original Message-----
From: Alex Colic [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, April 17, 2001 8:15 AM
To: Struts
Subject: how to cache lists?
Hi,
Lets say you have a web app that runs over a number of web pages in a wizard
fashion. On each one of these pages you need to present the user with a
select box holding lists. e.g. locations, cities, etc. This data is read
from a database and rarely changes.
How would you cache these lists so that as each user access this site they
do not need to have this info downloaded again?
I was thinking in the init() of my ActionServlet to access the database and
get these lists then place them in the session with Application scope. I
think this would allow each user to access the data without reaccessing the
database.
Any comments or suggestions are appreciated.
Regards
Alex
