How to alert user the Db is shutting down

Question

Hi all:
Is there a way through forms such as using 'DBMS Alert' that will warn the users when the DB is being shut down. I need a proc or something that will warn the users on the system when the DB is being shut down. Does anyone have any suggestions on how to do this? whether it be a on the forms side, database side, or combination of both.

Answer 1

Russ Ferriday <[email protected]> writes:
We're using idb for prototyping. It's very convenient.
We get lots of these messages
Database idb is shutting down...
Database idb shutdown complete.
and performance is dismal. Does anyone have any tips to speed things up?Russ,
If you set your db/pool/max to a value greater than 0, IDB will keep
connections open, and performance should dramatically increase. However,
when your main thread completes, the JVM may not exit, as IDB's
connection cache may not be empty. We have played with various fixes to
this problem, but are reluctant to make significant code changes for it,
as we do not expect people to use a single-JVM IDB configuration in a
production environment.
To make your application behave nicely, you must explicitly invoke
System.exit() at the end of your main routine. Note that you should do
this in the finally clause of a try...finally block so that if an
exception is thrown in your code, the JVM will still exit. Additionally,
it would be a good idea to catch Throwables and print out the stack
trace, so that if an exception makes its way up to your main method, you
will see some indication of the failure:
public static void main (String [] args)
try
// your code here
catch (Throwable t)
t.printStackTrace ();
finally
System.exit (0);
I hope that this helps.
-Patrick
Patrick Linskey [email protected]
SolarMetric Inc. http://www.solarmetric.com