Re: Calling ILE from Java

Aaron B. wrote:
So how does that architecture work for an Internet app where there are going
to be thousands of users? I guess that is where I was going with the idea
of doing threads on the RPG side.

Threading doesn't apply under that architecture. The J2EE application server is running in one job, and the RPG program is in another, and they communicate over a socket. It's similar to the CGI interface running under a named activation group. It wouldn't make sense to add RPG code for serialized access. Job startup costs occur only once, when the connection is first established.

Contrast that architecture with the one where an HTTP Server thread calls an RPG procedure and all the code is running within a single process. I ran into this when I wrote an HTTP server plug-in. In that case you might need to add code to the RPG module to serialize access, because multiple HTTP server threads are calling the same RPG procedure concurrently.

Nathan.