From: | Peter Mount <peter(at)retep(dot)org(dot)uk> |
---|---|
To: | Jeff MacDonald <jeff(at)hub(dot)org>, Jeff MacDonald <jeff(at)hub(dot)org>, pgsql-interfaces(at)postgresql(dot)org |
Subject: | Re: [INTERFACES] Java |
Date: | 1999-09-07 21:07:30 |
Message-ID: | 9909072216510M.00229@tabatha |
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Thread: | |
Lists: | pgsql-interfaces |
On Tue, 07 Sep 1999, Jeff MacDonald wrote:
> This question was sent to me, and i'm wondering if it's viable
> or if anyone else has any interest in it ?
>
> ++++++++++++++++
>
> Have you any plans to make possible writing simple functions/stored
> procedures in Java to extend PostgreSQL ?
>
> ++++++++++++++++
>
> Now my question related to this, if i understand correctly
> this would mean we would need the java runtime thingy in Postgres
> and would seriously wreck our speed . Right ?
I remember writing something some months ago (check the archives) of a possible
way around this.
IIRC, I seem to remember thinking along the lines of a single JVM thats run by
the Postmaster, and when a backend calls a stored procedure thats in Java, the
first call creates a new Thread/ThreadGroup in the JVM, and any call from that
backend goes to that thread using a simple set of Interface's.
When the backend closes, the ThreadGroup is killed off.
I think that's what I originally posted, but it would take someone with a lot
of time and JNI experience to pull it off.
Peter
--
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