Re: How to notify JBoss J2EE application in a trigger or rule???
Markus Schaber
Joost Kraaijeveld wrote:
> I want a PostgreSQL trigger or rule that notifies a JBoss deployed J2EE
> application of a certain event.
>
> I was hoping that pljava would work, but for some -yet unknown to me-
> reason, it does not work on my Debian AMD64 with Sun 1.5.0-7 JVM.
>
> Does anyone have an (working???) example or a pointer to an example of
> how to do this?
Hmm, did you try the GCJ-based pljava variant?
And, as an workaround, have an extra bean sitting in the JBoss that
LISTENs, and the trigger in SQL simply NOTIFYing it?
HTH,
Markus
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Markus Schaber | Logical Tracking&Tracing International AG
Dipl. Inf. | Software Development GIS
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TIP 6: explain analyze is your friend
Markus Schaber
Joost Kraaijeveld wrote:
>>> Does anyone have an (working???) example or a pointer to an example of
>>> how to do this?
>> Hmm, did you try the GCJ-based pljava variant?
> No, I did not. As far as I know, I *must* use the Sun JVM for JBoss, and
> I don't know if and how I can mix the GJC and Sun Java environment. Is
> that possible with (almost) no hassle and readme's?
I guess that you want to use CORBA or Java Remote Interface between
PostgreSQL and JBoss, and those should abstract between differend JVMs.
>> And, as an workaround, have an extra bean sitting in the JBoss that
>> LISTENs, and the trigger in SQL simply NOTIFYing it?
> Can you elaborate on that? What do you mean with LISTEN and NOTIFY?
http://www.postgresql.org/docs/8.1/interactive/sql-listen.html
http://www.postgresql.org/docs/8.1/interactive/sql-notify.html