Comments on: How can we check for a particular monmsg in rpgle free format

By: tomliotta

tomliotta — Fri, 31 Dec 2010 12:37:29 +0000

the API error data structure is populated at command execution…

The same will happen with QCMDEXC. And neither of them need to be prototyped — the CALL op-code allows the (E) extender, and it’s the (E) extender that provides the PSDS exception data. Of course, QCMDEXC can also be prototyped if desired.

However, QCAPCMD does have other advantages over QCMDEXC. But it’s not as easy to use and there are many cases where QCMDEXC is all that’s needed.

Tom

By: splat

splat — Thu, 30 Dec 2010 15:20:51 +0000

Am I correct in assuming CmdExecution is a prototype for QCMDEXC? I would recommend using QCAPCMD if you need to execute commands in an RPG/ILE program - the API error data structure is populated at command execution and messages can be retrieved from same.

By: vatchy

vatchy — Wed, 29 Dec 2010 20:13:50 +0000

Maybe I wasn’t too clear. When you code this: “Callp(e)” you are telling the program to NOT stop if there is an error message but to put the error message in the program status data structure. Immediately after the “Callp(e)” you check the program status data structure positions 40-46 for an error message and then do whatever processing you need for that particular message.

By: tomliotta

tomliotta — Wed, 29 Dec 2010 11:50:52 +0000

In that case QTEMP is not present in our library list by default.

I understand that it’s not in your library list. What I wonder is why an RPG program needs QTEMP in the library list. A library doesn’t have to be in a library list in order to use the library. You can use QTEMP whether it’s in the list or not, just like any other library.

Also, Vatchy already said that the error message identifier is in positions 40-46 of the program status data structure.

Tom

By: viveksharma

viveksharma — Wed, 29 Dec 2010 07:08:07 +0000

I am accessing my as/400 program from web application through a stored procedure. In that case QTEMP is not present in our library list by default. So I was trying to add it in my RPG ILE free format code. Could anyone please help me on how how can we handle various MonMsg in our RPG ILE free format code? It would be of great help if i am given some sample code to refer.

By: tomliotta

tomliotta — Tue, 28 Dec 2010 20:38:25 +0000

you shouldn’t have to add QTEMP to your library list – it should already be there.

That depends on how the site sets up their library lists. Personally, I prefer having QTEMP at the top of user library lists.

However, I also agree that it shouldn’t be necessary to add QTEMP. Not because it might already be in the list, but because an explicit addition of QTEMP implies that QTEMP will be used. And if QTEMP is going to be used, then it can be used through explicit qualification.

If, for example, you want to want to open a file named MYFILE in library QTEMP, then open “QTEMP/MYFILE”. Don’t rely on the library list. Just tell it to use QTEMP directly.

Tom

By: vatchy

vatchy — Tue, 28 Dec 2010 12:41:58 +0000

Well, you shouldn’t have to add QTEMP to your library list – it should already be there. However, you can check the program status data structure for the error message received; it will show you the error message in positions 40-46.