Re: Calling an ile rpg service program procedure that returns a value from a java class -- RPG400-L

Subject: Re: Calling an ile rpg service program procedure that returns a value from a java class
From: Luca Giammattei <luca.giammattei@xxxxxxxxx>
Date: Fri, 15 May 2026 14:08:25 +0200
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Il 15/05/2026 11:23, cesco via RPG400-L ha scritto:

Ciao Luca,
It's been a lot since I've coded some calls into RPG via jt400 (too clunky), but apparently you cannot return chars, check docs.
https://www.ibm.com/docs/api/v1/content/ssw_ibm_i_74/rzahh/javadoc/com/ibm/as400/access/ServiceProgramCall.html#setReturnValueFormat(int)
If you really want to go that way you need to lift the return into a parameter (explicitely or via RTNCODE maybe) or just a wrapper.

Maybe an idea is to use simple database access to expose such data, i.e. stored procedure that you can reuse than universally (JDBC from java, ODBC etc.).

ciao

Thx Cesco, really too clunky, almost useless (I mean the service program call class)

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Re: Calling an ile rpg service program procedure that returns a value from a java class , cesco

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