I'll try it. That should work (in theory).
Peter
--
Peter Mount
Enterprise Support
Maidstone Borough Council
Any views stated are my own, and not those of Maidstone Borough Council.
-----Original Message-----
From: Martin Kresse [mailto:mkresse@slyde.in-berlin.de]
Sent: Thursday, February 10, 2000 8:28 AM
To: pgsql-interfaces@postgreSQL.org
Subject: [INTERFACES] NOTIFY/LISTEN with JDBC
Hi there,
I'm writing a database application in Java, which needs to get
notified about changes in the database. Therefore I'd like to use the
NOTIFY/LISTEN mechanism, but I can't get it working with JDBC. I
was told, to use connection.getWarnings() method to retrieve
notifications, which doesn't seem to work. I'm using PostgreSQL
6.5.1 with the JDBC-Driver 6.5 for jdk1.1, and the following code
doesn't produce any output, while a parallel running psql-shell
displays the notifications...
Connection c = DriverManager.getConnection(...); Statement s = c.createStatement(); s.execute("LISTEN
test");
while(true) { s.execute("NOTIFY test"); SQLWarning w = c.getWarnings(); if (w != null)
System.out.println(w.getMessage()); try { Thread.sleep(2000); } catch (InterruptedException ex) {}
}
Am I doing something wrong?
Thanks a lot for your help,
Martin Kresse
************
