Thanks I'll check those things out.

Ron Power
Programmer
Information Services
City Of St. John's, NL
P.O. Box 908
St. John's, NL
A1C 5M2
709-576-8132
rpower@xxxxxxxxxx
http://www.stjohns.ca/
___________________________________________________________________________
Success is going from failure to failure without a loss of enthusiasm. - 
Sir Winston Churchill




Tamas Perlaky <tamas@xxxxxxxxx> 
Sent by: java400-l-bounces@xxxxxxxxxxxx
2006/06/21 04:43 PM
Please respond to
Java Programming on and around the iSeries / AS400 
<java400-l@xxxxxxxxxxxx>


To
Java Programming on and around the iSeries / AS400 
<java400-l@xxxxxxxxxxxx>
cc

Subject
Re: Thread question






Hi Ron,

What you're doing sounds reasonable enough, provided you're not doing 
this within an EJB container.  If it's just a plain web app. you 
should be fine.  You might want to check out the java.util.Timer 
class to handle the scheduling and thread management for you; it will 
also make it easy to have your task run at a specific time each day. 
Also, you'll want to make sure that the servlet this is coordinated 
from knows to disable the timer (or interrupt your thread for a 
graceful stop, if you're not using Timer) when your web app is 
removed (i.e. in the servlet's destroy method).

Per Walden's recommendation that you do this task outside of the web 
app... I'd probably do it as a standalone java app. myself (called 
from the job scheduler) but I don't think there's anything 
necessarily wrong with your approach either.  The hybrid approach 
using GetURI is an neat idea and worth considering, but I'm not sure 
you really gain that much for the extra effort.

t.

On 21-Jun-06, at 2:34 PM, RPower@xxxxxxxxxx wrote:

I have a need for a web application that I'm writing to do a daily 
check
for expiry dates, and if any meet criteria, to email people 
notifying them
of the expiration coming up.
I'm currently creating a thread, then making it sleep for 24 hours 
and run
again.  Is this efficient to do?  Should I be wary of anything by 
doing
this?  Or is there a better way to do it?

Ron Power
Programmer
Information Services
City Of St. John's, NL
P.O. Box 908
St. John's, NL
A1C 5M2
709-576-8132
rpower@xxxxxxxxxx
http://www.stjohns.ca/
______________________________________________________________________ 
_____
Success is going from failure to failure without a loss of 
enthusiasm. -
Sir Winston Churchill





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