Creating a Module Object

¹Reuse pieces of code. This generally results in smaller programs. Sm

grams give you better performance and easier debugging capabilitie

¹ Maintain shared code with little chance of introducing errors to oth the overall program.

¹Manage large programs more effectively. Modules allow you to divide program into parts that can be managed separately. If the program enhanced, you only need to recompile those modules which have been changed.

¹

Create mixed-language programs where

you

bind together

modules writte

 

the

best language for the task required.

 

For

more

information about the concept

of

modules,ILE Conceptsrefer.

to

Using the CRTRPGMOD

Command

 

 

 

 

 

You

create a

module using the Create

RPG

Module

(CRTRPGMOD)

command.

You

can use the command interactively,

as

part of

a batch

input stre

Command Language

(CL) program.

 

 

 

 

If you are using the command interactively and need prompting, type CRTRPGMOD and press F4 (Prompt). If you need help, type CRTRPGMOD and press F1 (Help).

Table 6 lists the parameters of the CRTRPGMOD command and their system- supplied defaults. The syntax diagram of the command and a description parameters are found in Appendix C, “The Create Commands” on page 405.

Table 6 (Page 1 of 2). CRTRPGMOD Parameters and Their Default Values Grouped by Function

 

 

 

 

 

 

 

Module

Identification

 

 

 

 

 

 

 

 

 

MODULE(*CURLIB/*CTLSPEC)

Determines created module name and library

 

 

 

 

 

 

SRCFILE(*LIBL/QRPGLESRC)

Identifies source file and library

 

 

 

 

 

 

SRCMBR(*MODULE)

Identifies file member containing source specifications

 

 

 

 

 

 

 

TEXT(*SRCMBRTXT)

Provides

brief description of

module

 

 

 

 

 

 

Module

Creation

 

 

 

 

 

 

 

 

 

GENLVL(10)

Conditions module creation to error severity (0-20)

 

 

 

 

 

OPTION(*DEBUGIO)

*DEBUGIO/*NODEBUGIO, determines if breakpoints are gener-

 

 

ated for input and output specifications

 

 

 

 

 

OPTION(*GEN)

*GEN/*NOGEN, determines if module is created

 

 

 

 

 

OPTION(*NOSRCSTMT)

Specifies how the compiler generates statement numbers for

 

 

debugging

 

 

 

 

 

 

 

 

DBGVIEW(*STMT)

Specifies type of debug view, if any, to be included in

 

 

 

 

 

OPTIMIZE(*NONE)

Determines level of optimization, if any

 

 

 

 

 

REPLACE(*YES)

Determines if module should replace existing module

 

 

 

 

 

AUT(*LIBCRTAUT)

Specifies type of authority for created module

 

 

 

 

 

TGTRLS(*CURRENT)

Specifies the release level the object is to be run on

 

 

 

 

 

BNDDIR(*NONE)

Specifies the binding directory to be used for symbol reso

 

 

 

 

 

 

 

ENBPFRCOL(*PEP)

Specifies

whether performance

collection is enabled

 

 

 

 

 

 

74 ILE RPG for AS/400 Programmer's Guide

Page 97 Page 99
Page 98
Image 98
IBM AS/400 manual Command, Using the Crtrpgmod, You Create a Module using the Create
Page 97 Page 99

AS/400 specifications

The IBM AS/400, now known as the IBM iSeries, is a midrange computer system that has been a cornerstone of enterprise computing since its introduction in 1988. Designed to provide a robust platform for business applications, the AS/400 is celebrated for its reliability, scalability, and integrated database capabilities.

One of the key features of the AS/400 is its Integrated Operating Environment, which blends hardware and software resources seamlessly. This integration allows businesses to execute diverse workloads, ranging from traditional applications to modern web-based services, all on a single platform. The operating system, OS/400 (now IBM i), offers a rich set of APIs and tools for developers, simplifying application development and management.

Another standout characteristic of the AS/400 is its built-in database, DB2 for i. This powerful relational database management system allows for efficient data handling and provides advanced features such as support for SQL, XML, and JSON, making it easier for businesses to manage their data and integrate it with other systems. The database's tight integration with the operating system enables high performance and security.

In terms of scalability, the AS/400 can accommodate small businesses as well as large enterprises, with the ability to support hundreds of users simultaneously. Its architecture allows for easy upgrades in hardware, meaning that organizations can scale their systems without replacing the entire infrastructure.

Security is another critical attribute of the AS/400. With a sophisticated security model, it offers built-in user authentication, access control, encryption, and auditing capabilities to protect data and applications from unauthorized access.

The AS/400 also supports multiple programming languages, including RPG, COBOL, Java, and PHP, giving organizations the flexibility to choose the development tools that best fit their needs. This diversity helps maintain legacy applications while also developing new ones that leverage modern technologies.

Moreover, the platform supports both traditional green-screen interfaces and modern graphical user interfaces, allowing organizations to transition smoothly into contemporary user experience paradigms.

Overall, the IBM AS/400 stands out as a resilient, flexible, and secure computing platform that enables organizations to effectively manage their business operations, streamline processes, and adapt to changing market demands. Its unique combination of integrated features and capabilities ensures that it remains relevant in today's fast-paced technology landscape.
Top Page Image Contents