AP910P99 OCL

The provided document is an Operation Control Language (OCL) program, specifically AP910P99.ocl36.txt, used for vendor file maintenance related to 1099 forms in an IBM AS/400 or IBM i environment. Below, I’ll break down the process steps of the OCL program, identify the external programs called, and list the tables (files) used.

Process Steps of the RPG OCL Program¶

OCL is a control language used on IBM midrange systems to manage job execution, call programs, and handle file operations. The program AP910P99 appears to be part of an accounts payable (AP) system for maintaining vendor data related to 1099 forms. Here’s a step-by-step explanation of the process:

Initialization and Setup:
// SCPROCP ,,,,,,,,?9?: This likely specifies the procedure name and a parameter ?9?, which is a placeholder for a runtime value (possibly a control flag or environment indicator).
// SWITCH 00000000: Initializes job switches to 00000000, resetting any control flags used for conditional logic.
// LOCAL BLANK-*ALL: Clears all local variables to blank, ensuring a clean state for the job.
// GSY2K: Likely invokes a system-level setting or module related to Year 2000 (Y2K) compliance, possibly for date handling.
Prompt for Four-Digit Year:
The commented message // * 'WHAT YEAR ARE THESE 1099''S FOR? PLEASE ENTER THE "FOUR DIGIT YEAR"...' suggests that the program expects a four-digit year input (e.g., 2025) to process 1099 forms for a specific year.
// IF ?10R?/ * '': Checks if the input parameter ?10? (likely the year) is blank. If blank, the program may skip certain steps or terminate (the exact behavior depends on the condition handling).
Conditional Program Calls Based on Parameter ?9?:
The program checks the value of ?9? (a control flag or environment indicator, possibly G for a specific mode like "Generate").
If ?9? equals G:
- CALL PGM(AP910P) PARM('MNT' 'APVN?10?' '?9?'): Calls the RPG program AP910P with parameters:
- 'MNT': Indicates maintenance mode.
- 'APVN?10?': The file name APVN concatenated with the four-digit year (e.g., APVN2025 for year 2025).
- '?9?': Passes the control flag.
- Alternatively, CALL PGM(AP910P) PARM('MNT' '?9?VN?10?' '?9?'): Calls the same program but with a different file name format, ?9?VN?10? (e.g., GVN2025 if ?9? is G).
These calls likely perform maintenance tasks on the vendor file for the specified year, such as updating payment totals or preparing data for 1099 reporting.
Set File Name for Update:
If ?9? equals G:
- EVALUATE P13='APVN?10?': Sets the variable P13 to the file name APVN concatenated with the year (e.g., APVN2025).
- Alternatively, EVALUATE P13='?9?VN?10?': Sets P13 to a file name like GVN2025.
P13 is used to specify the file for the subsequent update operation.
User Interaction for Payment Updates:
// * '---------------------------------------------------------------': Displays a separator line (commented, possibly for debugging or documentation).
// PAUSE 'THE NEXT SCREEN ALLOWS FOR PAYMENT UPDATES IF NECESSARY': Pauses the job and displays a message to the user, indicating that the next screen allows manual updates to payment data.
// UPDDTA ?13?: Invokes the Update Data (UPDDTA) command to allow the user to interactively update records in the file specified by P13 (e.g., APVN2025). This is likely a screen-based interface where users can modify vendor payment totals for the 1099 process.
Conditional Termination:
// IF SWITCH1-1 GOTO END: Checks if switch 1 is set to 1. If true, the program jumps to the END tag, terminating execution.
This switch might be set by the AP910P program or the UPDDTA operation to indicate an error or completion condition.
Cleanup and Exit:
// TAG END: Marks the end of the program.
// SWITCH 00000000: Resets job switches to 00000000 for consistency.
// LOCAL BLANK-*ALL: Clears all local variables again, ensuring no residual data remains.

External Programs Called¶

The OCL program calls the following external program: - AP910P: An RPG program called with parameters to perform maintenance tasks on the vendor file. It is invoked conditionally based on the value of ?9? (e.g., when ?9? is G). The parameters passed are: - 'MNT': Maintenance mode. - File name (either APVN?10? or ?9?VN?10?, e.g., APVN2025 or GVN2025). - Control flag ?9?.

Tables (Files) Used¶

The program references the following files (referred to as "tables" in the context of AS/400): - APVNYYYY: A vendor file containing data before monthly and yearly totals are cleared, as noted in the programmer’s comment. The YYYY is replaced by the four-digit year input (?10?), e.g., APVN2025. - ?9?VN?10?: An alternative file name format (e.g., GVN2025 if ?9? is G). This may refer to a different version or copy of the vendor file, depending on the environment or mode. - The file name is dynamically set to the variable P13 and used in the UPDDTA command for interactive updates.

Additionally, the programmer’s note mentions: - GAPVEND: The original vendor file from which APVNYYYY is created during the period-end process (AP300). This file is not directly used in AP910P99 but provides context for the origin of APVNYYYY.

Summary¶

The AP910P99 OCL program facilitates vendor file maintenance for 1099 form processing. It: 1. Initializes the environment and prompts for a four-digit year. 2. Conditionally calls the RPG program AP910P to perform maintenance on the vendor file (APVNYYYY or ?9?VN?10?) based on a control flag (?9?). 3. Allows users to manually update payment totals in the specified file using the UPDDTA command. 4. Terminates if a specific switch is set or after completing the update process. 5. Ensures cleanup by resetting switches and variables.

External Programs: AP910P
Tables/Files: APVNYYYY (e.g., APVN2025), ?9?VN?10? (e.g., GVN2025), with GAPVEND as the source file in the period-end process.

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