RE: Calling a RPG pgm. -- JAVA400-L



The problem you have is that you are not setting on the LR indicator and because
of this your RPG program stays active.   If the program is active the file will
be lock as you needed for  output.
This is a good technique if you are going to be calling the program many times,
but in your case the program is open for output.   Output program are open by
RPG programs setting a lock because of obvious reasons.

You can fix this problem by:
1. setting the *INLR to on before doing your return or
2. control the open and closing the file inside your program if you want to save
the "opening time" of your program.

I hope this helps....





vijayakumar purushothaman <p_vijayakumar@hotmail.com> on 06/05/2000 01:04:14 AM

Please respond to JAVA400-L@midrange.com

To:   JAVA400-L@midrange.com
cc:    (bcc: Robert Arce/Whittman-Hart LP)
Subject:  RE: Calling a RPG pgm.



Dear Martin,
              As you said am not opening the pf in java and also i couldn't
see any kind of lock status for my PF in WRKOBJLCK. And in WRKACTJOB job
status was JVAW. Here with i am attaching my pgms kindly go thru them and
try to give me the solution.

Thanks in Advance,
Vijay.

This is the BOOKPF - physical file.

************* Beginning of data ************
   A          R BOOKREC
   A            EMPNO          5  0
**************** End of data ***************


This is the BOOK2 - RPG program.

************** Beginning of data ************************************
    FBOOKPF  O   E                    DISK
    C           *ENTRY    PLIST
    C                     PARM           VAR1    50
    C                     ADD  12        VAR1
    C                     Z-ADDVAR1      EMPNO
    C                     WRITEBOOKREC
    C                     RETRN
***************** End of data ***************************************

This is the Hbook2 - java program calls RPG program.

********************************************************************

import java.math.BigDecimal;
import com.ibm.as400.access.*;

public class Hbook2 { public static void main(String[] args)
{
Hbook2 Hbook2 = new Hbook2();
System.exit(0);
}
public Hbook2()
     {
          AS400 as400 = new AS400("localhost");
          ProgramParameter[] pList = new ProgramParameter[1];

          System.out.println("Constructing Parameters....");

     // the parameter is input and output packed 5/0
     BigDecimal decimalValue = new BigDecimal(5.0);
     pList[0] = new ProgramParameter(new
AS400PackedDecimal(5,0).toBytes(decimalValue), 5);

     // Create the path to the program
QSYSObjectPathName programName = new
QSYSObjectPathName("/QSYS.LIB/VIJAY.LIB/BOOK2.PGM");

     // Create the program call object
     ProgramCall inv0011 = new ProgramCall(as400, programName.getPath(), pList);

     System.out.println("Call made for Program Book2....");
     // Execute the program
     try {
          if (inv0011.run() == false)
               { // Handle any errors of the program call failed
                    AS400Message[] msgList = inv0011.getMessageList();
                         for (int i=0; i<msgList.length; i++)
                         {
                              System.out.println(msgList[i].getText());
                         } return;
               }
               } catch (ObjectDoesNotExistException dnf)
                    { System.out.println("Program not found"); return; }
                catch (Exception error)
                    { System.out.println("Exception: " + error); return; }

     // convert parameter back to Java
     BigDecimal packedReturn = (BigDecimal)new AS400PackedDecimal(5,0).toObject(
pList[0].getOutputData());

     // list out the returned values
System.out.println("pList[0]: " + packedReturn.toString());
     }
}


>From: Steve Martin <smartin@carefreeofcolorado.com>
>Reply-To: JAVA400-L@midrange.com
>To: JAVA400-L@midrange.com
>Subject: RE: Calling a RPG pgm.
>Date: Fri, 2 Jun 2000 06:06:07 -0600
>
>Do you have the PF open in your Java Pgm? There may be a *LOCK state that
>the RPG Pgm is waiting for... what does your job look like when you look at
>WRKACTJOB?
>
> > -----Original Message-----
> > From: vijayakumar purushothaman [SMTP:p_vijayakumar@hotmail.com]
> > Sent: Thursday, June 01, 2000 10:56 PM
> > To:   JAVA400-L@midrange.com
> > Subject:   Calling a RPG pgm.
> >
> > Hi Folks,
> >             I am calling a rpg pgm thru java and also my rpg deals with
>a
> > physical file. When i run the java pgm it starts to hang indefinitely.
>If
> > i
> > remove the pf then it works fine. I don't know the reason, any one can
> > help.
> >
> > Thanks in Advance,
> > Vijay.
> > ________________________________________________________________________
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