| From: | Greg Stark <gsstark(at)mit(dot)edu> |
|---|---|
| To: | iceDice <nmilasinovic(at)gmail(dot)com> |
| Cc: | pgsql-jdbc(at)postgresql(dot)org |
| Subject: | Re: PostgreSQL_db_change_notification |
| Date: | 2009-07-06 18:27:55 |
| Message-ID: | 407d949e0907061127n4aa61994sce02724004c27e76@mail.gmail.com |
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| Lists: | pgsql-jdbc |
On Mon, Jul 6, 2009 at 6:57 PM, iceDice<nmilasinovic(at)gmail(dot)com> wrote:
>
> Does PostgreSQL supports some database change notification mechanism?
> I have Java Swing application and PostgreSQL database for storing data.
> The problem is that my database can change at any moment and instead of
> querying
> the database every 5 seconds, I would like the database to some how send my
> application
> a notification of a change when it happens.
The Postgresy way to do this is to have triggers on the tables you
want to watch which use the NOTIFY command. Then have your client
issue a LISTEN.
I'm not sure how this works with JDBC though...
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