RE: Looking for Good Java & XML for RPG Info

The reason I would be using RPG is simply because that is what our business 
wants for certain applications.  We have existing  business functionality in 
RPG that needs to send/get data with java applications.  The java part does XML 
so we were wanting the RPG to use XML to use with the java.


-----Original Message-----
From: java400-l-bounces@xxxxxxxxxxxx
[mailto:java400-l-bounces@xxxxxxxxxxxx]On Behalf Of Aaron Bartell
Sent: Friday, March 25, 2005 10:17 AM
To: Java Programming on and around the iSeries / AS400
Subject: Re: Looking for Good Java & XML for RPG Info


If you are experienced in Java programming don't even consider using RPG 
to parse or compose your xml (although it is very easy to compose with 
CGIDEV2).  There are a plethora of tools out there that in Java for 
doing XML, Web Services, etc. Parse all of your xml with Java and make 
calls to your RPG programs using either PCML (very limiting) or SQL 
stored procedures.

For a recent project I used Apache Axis to send a SOAP web service 
request to a .NET web service and it took me only a couple hours to 
download the tool from jakarta.apache.org and generate my Java classes 
based on the WSDL the .NET programmer provided to me. This same task in 
RPG would have taken much longer being that there are no SOAP processors 
available in the RPG realm (at least until Scott Klement writes an 
interface to one :-)

With that said here is my site where I wrote an interface to IBM"s XML 
parser. http://mowyourlawn.com/  Scott Klement has also put together an 
interface to the expat parser which can be found on his site: 
http://scottklement.com

Just note that if you go the route of RPG to do your XML processing you 
will always be about 2 to 3 years behind in technology until someone 
ports the technology to RPG.

Those are my thoughts on the matter :-)
Aaron Bartell

Mallasee, Curt wrote:

>I currently know how to use java in RPG, however I have never had the 
>opportunity to use XML in RPG yet.  I have a case where I am wanting RPG to 
>use both Java and XML, possibly having RPG create XML documents to pass to 
>Java, and receiving other XML documents from java to have RPG parse.
>
>Does anyone have any good links to documentation on where to begin to learn 
>this? I learn best by simple, straight-to-the-point examples.  I also know IBM 
>has a XML service program available for RPG, but I don't have a clue how to 
>use it. I haven't found any material out there that makes sense to a beginner 
>in this area (but I don't want it to be over simplified where it can't be 
>applied in a real world business environment). I know the basic concept of 
>XML, I just don't know how to program with it, especially in RPG. I am 
>experienced in java programming.
>
>Thanks for any direction anyone with exposure to this can provide.
>
>  
>
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