Re: Passing Messages

On Donnerstag, 22. April 2004 22:23, SMore@xxxxxxxxxxxxxx wrote:
> This sounds like the "right" way to do it.

Steve, 

you should have in mind, that doing it this way would start multiple JVMs, one 
for each user Job using JNI to call a java method from RPG. This might be 
good for ibm (selling hardware), but not good for performance.

Dieter Bender 

>
> I am a java/linux programmer, so anything about RPG sounds complex.
>
> Would there be a "Hello World" example for RPG/JNI ?
>
> Once I get that, I think I can better understand the "ILE RPG Programmer's
> Guide"
>
>
> -Thanks
> Steve More
> Web Application Developer
> Empire Corporate FCU
>
>
> -----Original Message-----
> From: Daniel Feather [mailto:DFeather@xxxxxxxxxxxxx]
> Sent: Thursday, April 22, 2004 2:52 PM
> To: Java Programming on and around the iSeries / AS400
> Subject: RE: Passing Messages
>
>
> You could use JNI and write a simple RPG wrapper program to call your
> java program, and have the java method you call return a string, and
> then return that string in one of the parameters of the RPG program.
> Then have your CL call that RPG program and read that parameter for the
> result. That's actually not as complex as it sounds. Information about
> calling java methods from RPG can be found in the ILE RPG Programmer's
> Guide.
>
> Something to consider.
>
> Dan Feather
> Silhouette/PinPoint R&D Programmer
> Jack Henry & Associates, Inc.
> dfeather@xxxxxxxxxxxxx
>
> -----Original Message-----
> From: java400-l-bounces+dfeather=jackhenry.com@xxxxxxxxxxxx
> [mailto:java400-l-bounces+dfeather=jackhenry.com@xxxxxxxxxxxx] On Behalf
> Of SMore@xxxxxxxxxxxxxx
> Sent: Thursday, April 22, 2004 1:28 PM
> To: java400-l@xxxxxxxxxxxx
> Subject: Passing Messages
>
> What is a good way to pass a message from a java program to CL ?
>
> You can pass parameters in when calling RUNJVA, but how can you get a
> parameter out ?
>
> Here is what I have tried to do:
>       1. In CL create a data-area in qtemp
>       2. Call RUNJVA, this java program would write to the newly
> created
> data-area in qtemp
>       3. CL would read a message from this data-area
>       4. When CL ends the data-area in qtemp dis-appears
>
>       The problem here is that the java program in step 2 can not read
> the
> data-area created in step 1.
>
> I guess I'll try and use a db2 table instead of a data-area if no-one
> has a
> better idea.
>
> Thanks
> -Steve More
>
>
>
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-- 
mfG

Dieter Bender


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