Tomcat 5 and DB2 for iSeries

May 12, 2004 Marc Logemann

Tomcat 5 was released several weeks ago, and already there has been a massive adoption by the industry. Tomcat 5 offers many new features, like Java Management Extension (JMX) monitoring, integrated session clustering, and improved taglib handling, and its performance and management capabilities are greatly improved. This release also reunited the Tomcat developer group, which had been split into two branches. Since my last article about DB2 for iSeries, many things have changed, so an update is important.

ACCESSING DB2 FOR ISERIES WITH DB2 UNIVERSAL DRIVER

Many people ask me about the JDBC setup with Tomcat and the JDBC

Writing Control Break Programs

May 12, 2004 Ted Holt

[The code for this article is available for download.]

Having worked on programs written by different programmers, I have noticed a lot of different techniques and programming styles. However, one thing is consistent: that most programmers do not design programs. When it comes time to write a program, they just sit down at their workstations and have at it. This approach to program development results in error-prone programs that are hard to modify. A saying I once read on a poster comes to mind: If builders built houses the way programmers write programs, the first woodpecker to …

Changing Prototypes and Dual Prototyping

May 12, 2004 Hey, Joel

You mentioned in your article “Service Programs with a Smile” that changing a procedure’s prototype could cause problems. Are you saying you should never change a prototype? I’d like to add a new parameter to a procedure, and it seems a little impractical for me to create a whole new procedure. Any suggestions?

— Jim

You are absolutely right, it would be impractical, but fortunately that won’t be necessary. What I was referring to in that article was changing a parameter in a prototype, which could cause disastrous results. Adding a new parameter, however, is a different story, as long

Sending E-Mail from RPG

May 12, 2004 Hey, David

[The code for this article is available for download.]

A few years ago you wrote an article about sending e-mail using the QzmfCrtMailMsg API. I used your code at my last job to send e-mail from RPG programs. I told my new boss I could set it up so that we could send e-mail from our RPG programs, but I don’t have the magazine with that article. Is that article available online, and is the QzmfCrtMailMsg still the way to go?

–Frank

Back in 1998, QzmfCrtMailMsg was a good option for RPG programmers, but there are …

OS/400 Alert: i5, or iHype?

May 12, 2004 Shannon O'Donnell

You’ve heard all the news in The Four Hundred about the newest operating system and hardware from IBM, and may be getting anxious, thinking that you are going to be left behind. Before you start hyperventilating, take a moment to read what I have to say about what this announcement really means to you from a practical perspective. Also in this issue we tell you about the arrest of the creator of W32.Sasser and a rather goofy OS/400 PTF from IBM.

WHAT DOES I5 MEAN TO YOU?

In case you missed it, IBM announced last week that our beloved