Re: PCML use

["Schmidt, Mihael" <Mihael.Schmidt@xxxxxxxxxxx>]

You can call exported procedures via PCML or XPCML (see com.ibm.as400.access.ServiceProgramCall).

The "problem" with the restriction of 7 parameter is not really a restriction as you can work with (data) structures very nicely in PCML and I have yet to write a procedure which has to pass/get more that 7 parameters.

Date handling: Is not that much of a problem either. Just convert the date/timestamp to a unix timestamp which can be passed easily as an integer and is easily consumed by your java problem in the Date constructor as a parameter.

     D unixEpochTimestamp...
     D                 C                   z'1970-01-01-00.00.00.000000'

     P date_convertDateToMillis...
     P                 B                   export
     D                 PI            20I 0
     D   pDate                         D   const
      /free
       return %diff(%timestamp(pDate) : unixEpochTimestamp : *SECONDS) * 1000;
      /end-free
     P                 E   


     P date_convertMillisToDate...
     P                 B                   export
     D                 PI              D
     D   millis                      20I 0 const
      *
     D datum           S               D
      /free
       datum = %date(unixEpochTimestamp + %seconds(%uns(millis / 1000)));
       return datum;
      /end-free
     P                 E     

Note: It is not a real Unix timestamp as it originally counts in seconds not milliseconds as in this example but as java likes milliseconds it is gonna get it (see java.util.Date).

Regards

Mihael


-----Original Message-----
From: web400-bounces@xxxxxxxxxxxx [mailto:web400-bounces@xxxxxxxxxxxx] On Behalf Of James Perkins
Sent: Tuesday, April 20, 2010 6:35 PM
To: Web Enabling the AS400 / iSeries
Subject: Re: [WEB400] PCML use

I've started using PCML more because I hate defining the stored
procedure. I do agree that SQL stored procedures are more flexible and
platform-independent, but since at this point I only create programs
that will be calling IBM i programs it hasn't affected me. I think you
can even call service programs with PCML, so that's a bonus.

I do wish however that PCML had better date support. The data handling
is one nice thing about SQL stored procedures.

--
James R. Perkins



On Tue, Apr 20, 2010 at 06:16,  <TAllen@xxxxxxxxxxxx> wrote:
> Just for my edification, what is/are the use case(s) for PCML vs. SQL
> stored procedures?  I've never seen the need to use PCML and don't know why
> I ever would use it.  SQL stored procedures seem to be more flexible and
> platform-independent.
>
> Thanks,
> Todd Allen
> EDPS
> Electronic Data Processing Services
> tallen@xxxxxxxxxxxx
>
>
>
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