RE: Perfect Match - Java and RPG and User Spaces?

PCML does not have a 7 parm limit.  It can do anything you can do from RPG 
to RPG.

I was proposing breaking up the call into the various pieces you would 
need to process the transaction.  Without knowing your app, I cannot say 
what that would be.

Finally, PCML is just a convenience tool because the underlying 
ProgramCall API is kind of difficult to use, especially in terms of 
defining your parms.  If you needed to optimize this for performance you 
could write directly to the "real" API.

Mark

java400-l-bounces@xxxxxxxxxxxx wrote on 03/19/2004 10:56:22 AM:

> <Mark>
> Wouldn't something like a *DTAQ or possibly even something "heavier" 
like 
> MQSeries be a better choice than a *USRSPC?  The *USRSPC is a great way 
to 
> pass the data efficiently, but it seems like it forces you to handle all 

> of the "queuing" aspects that would be needed to deal with high-volume 
and 
> that you get for "free" by using a queueing delivery system.
> </Mark>
> 
> I will take a look into MQSeries.  I have to distribute this to around 
20 -
> 30 iSeries machines so cost may put that idea in the grave.  I have 
actually
> already built the dynamic call functionality that I described, so I will
> probably just go that route.  It isn't much, but it is exactly what I 
need.
> 
> <Mark>
> Also, have you considered driving it more from Java?  In other words let 

> it parse the XML and make all of the decisions and just call the 
> appropriate RPG programs directly to process the transactions?
> </Mark>
> 
> I will be calling the RPG program directly and I will tell it which User
> Space to look for the data in.  I am guessing you are saying to just 
pass
> the data as a parm to the RPG program??  I have thought of this, but 
there
> are going to be many times where my data could exceed 65,535 bytes (i.e.
> large PO) and for sure I would hit up against the 7 parm max of PCML. 
The
> User Space is nice because there is only ever one version of the data in
> memory or on disk.  If I sent it the other way I am not so sure that 
would
> be the case (I will have to look into PCML a little more to verify 
this).
> 
> Thanks for your comments,
> Aaron Bartell
> 
> 
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