• Subject: Re: Some experience - as400 server side java
  • From: SJoaquim@xxxxxxx
  • Date: Mon, 7 Jun 1999 18:25:36 EDT

Hi Shahar!

Well, I think Java is for real, and it is for real on the AS/400 too.

To answer some of your questions briefly, Java can interact with C, C++ and 
RPG via the JNI, for example. You can also use direct procedure calls (DPC). 
I'm no great C/C++ programmer, but I should imagine there's no secret in 
calling Java from those languages. From RPG, for now, you have to form a CL 
command containing JAVA CLASS(myclass) and then call QCMDEXEC. You can also 
use some middleware such as the AS400's own data queues, or even MQSeries, or 
CORBA.

To interact with the database, you can use JDBC, for example. VisualAge for 
Java Enterprise Edition has some nice wizards such as the Data Access Beans 
and the Data Access Builder.

I have colleagues working on the AS/400 with WebSphere, deploying servlets 
and Java server pages. Others are building pilot CORBA apps. I'm working on 
deploying the Entrust Toolkit for Java on the box, for message 
authentication. It feels 'for real' to me :)

Best regards,

Simone
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