Re: XMLSERVICE with .Net

On 2012-08-04, at 1:00 PM, web400-request@xxxxxxxxxxxx wrote:

I still don't understand. What is the difference between calling "xmlservice.pgm" from "xmlcgi.pgm" vs. calling it from "qzdasoinit.pgm"?

If you haven't benchmarked the CGI interface vs. the QZDASOINIT interface, then you're just spreading harmful FUD about CGI performance, no?

OK - maybe we should start over again because you have the wrong end of the stick Nathan.

There are two ways of accessing XMLSERVICE.

The first is as a rest-style web service. You pass an XML packet that describes the program you want to call, parms etc. (You can also use commands, PASE stuff, etc. but I'm sticking to programs for simplicity). Note it is _any_ program as described by the XML packet.

The second way is to make an SQL type connection (ODBC, JDBC, whatever) and call the XMLSERVICE's stored procedure directly. Again an XML packet is used to describe what you want it to do. It is essentially the same XML packet as in the REST service interface.

Here's why Brian is correct in saying that the rest service is slower than the stored procedure. There's no FUD here and no statement at all about CGI performance. Heck Brian's company builds tools for developing CGI apps - he's not likely to spread FUD is he. The reason that the rest service has to be slower is that once it has received the request in order to process it, it calls the _exact_same_ stored procedure. So the time spent in the CGI job has to be overhead. Not much - but it is inevitable.

Hope this makes it clearer for you.


Jon Paris

www.partner400.com
www.SystemiDeveloper.com