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  2. WEB400
  3. May 2009

Re: Srvpgm procedure return value must be type="int" and length="4" when using *PCML.

Claus Weiss wrote:
Hi John, the java toolbox has certain restrictions for invoking service
programs. One of them is the return value data type, the other is a limit
of 7 parameters. Just be aware a data structure with many fields would
still count as one pararmeter.

I use PCML to call service program procedures from Java all the time and have found that judicious use of data structures is a very simple way of getting around the parameter count limit.

I came up with a technique that let me use externally described data structures (PF's on the iSeries, same ones the RPG code used) to make passing complex data from Java to RPG quite easy.

david


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