IBM AS/400 manual Program Creation Strategies, Strategy 1 OPM-Compatible Application, Method

OPM-Compatible Application

Chapter 3. Program Creation Strategies

There are many approaches you can take in creating programs using an guage. This section presents three common strategies for creating IL using ILE RPG or other ILE languages.

1. Create a program using CRTBNDRPG to maximize OPM compatibility.

2. Create an ILE program using CRTBNDRPG.

3. Create an ILE program using CRTRPGMOD and CRTPGM.

The first	strategy		is	recommended	as a	temporary	one.	It	is	intend
have OPM applications and who, perhaps due to lack of time,									cannot		mov
applications	to	ILE	all at once. The second strategy can					also be			a
allows you	time	to	learn	more about	ILE,	but also	allows	you	to	immed
some of its features. The third strategy is more involved,									but		off
bility.

Both the first and second strategy make use of the one-step progra process, namely, CRTBNDRPG. The third strategy uses the two-step progr ation process, namely, CRTRPGMOD followed by CRTPGM.

Strategy 1: OPM-Compatible Application

Strategy 1 results in an ILE program that interacts well with OPM prog allows you to take advantage of RPG IV enhancements, but not all of enhancements. You may want such a program temporarily while you comple migration to ILE.

Method

Use the following general approach to create such a program:

1. Convert your source to RPG IV using the CVTRPGSRC command.

Be sure to convert all /COPY members that are used by the sourc converting.

2.Create a program object using the CRTBNDRPG command, specifying DFTACTGRP(*YES).

Specifying DFTACTGRP(*YES) means that the program object

will run

only

in

default

activation

group.

(The

default

activation group

is

the

activa

all

OPM

programs

are

run.)

As

a

result,

the program object will intera

OPM programs

in

the

areas

of

override

scoping,

open

scoping,

and

RCLRS

When

you

use

this

approach

you cannot

make use of ILE static bindi

means

that

you

cannot code a bound procedure

call

in

your

source,

use the BNDDIR or ACTGRP parameters on

the CRTBNDRPG

command

when

creating

this

program.

 Copyright IBM Corp. 1994, 1999 23