Rick.Chevalier@xxxxxxxxxxxxxxx skrev den 05-05-2008 17:44:
I am looking for opinions/reasons, with supporting information, on the use of JAVA instead of RPG to write business logic on the iSeries. The impetus for this request is that our architecture group is suggesting we write any new business logic in JAVA for portability reasons. Keeping our current application code in RPG, just the new stuff. That's what I have been able to ascertain to this point. I know it's not much. The general corporate direction is to move to an SOA architecture with an enterprise service bus (?) handling the service calls between applications.

In know a lot of people out there either use or have experimented with using JAVA on the iSeries. What are your thoughts about doing this?
In my very personal opinion this would probably be hard to create and maintain unless you make a clean cut between what is done in java and what is done in RPG/Whatever. Moving big amonuts of data across between the two worlds may be extremely painful in both the short and long run.

Also, it is much easier to call RPG from Java than call Java from RPG (as API's) so you should be careful not ending up having stuff in the wrong location.

When that is said, it is doable :)

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