Experimental Physics and
Industrial Control System

Monitor monitor =  channel.addMonitor(DBR_String.TYPE, 1,Monitor.VALUE, new MonitorListener(){
	@Override
	public void monitorChanged(MonitorEvent ev) {
		try {
			DBR_String s = (DBR_String) ev.getDBR().convert(DBR_String.TYPE);
			String string = s.getStringValue()[0];
			System.out.println("Value: "+string);
		} catch (CAStatusException e) {
			e.printStackTrace();
		}
	}});

Regards
Simon

> I am trying to work with Java Channel access (JCA 2.3.2 and CAJ
> 1.1.5b). I may have blinders on, but the only documentation I can find
> is the APS tutorial and the JCA javadoc (for JCA 2.1.2). If there is
> anything else, could someone please point me to it.
> > My specific problem:
> I have a MonitorListener, which delivers a MonitorEvent on a PV value
> change.
> The MonitorEvent gives me DBR, from which I want to get the new value as
> a String.
> > My code looks like this:
> > DBR dbr = evt.getDBR();
> DBR dbr2 = dbr.convert(DBRType.CTRL_STRING);
> String[] s = ((DBRString) dbr2).getStringValue();
> > s[0] contains the correct value for all DBR types, with the exception of
> enumerated types, where it has an empty string.
> What am I doing wrong?

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