Setting and Removing Breakpoints

is

shown

with the source positioned at the line where the breakpoint

line

is

highlighted. At

this point, you can evaluate fields, set more

run

any

of the debug

commands.

You should know the following characteristics about breakpoints before

¹When a breakpoint is set on a statement, the beforebreakpointthat occurs statement is processed.

¹When a statement with a conditional breakpoint is reached, the cond expression associated with the breakpointbeforeis theevaluatedstatement is

processed. If the expression is true, the breakpoint takes effec program stops on that line.

¹ If

the line

on which

you

want

to

set

a breakpoint is not a runnab

the

breakpoint

will be

set

on

the

next

runnable statement.

¹ If a breakpoint is bypassed that breakpoint is not processed.

¹Breakpoint functions are specified through debug commands. These fun include:

– Adding breakpoints to program objects

– Removing breakpoints from program objects

– Displaying breakpoint information

–Resuming the running of a program object after a breakpoint has reached

 

– You can either have

a

job or thread breakpoint on a specified

 

the

same

time,

but

not

both.

 

 

 

 

If

you

change

the

view

of

the

module

after

setting breakpoints,

the

numbers

of

the

breakpoints

are mapped to

the

new view by the source

If

you

are

debugging

a

module

or program

created with a statement

can

set

or

remove breakpoints

using statement numbers obtained from

the

listing.

For

more

information

on

using statement numbers, see “Setting and

Removing

Job

Breakpoints

Using

Statement

Numbers”

on page 185.

 

Setting and Removing

Unconditional

Job

Breakpoints

You

can set

or

remove an unconditional Job breakpoint by using:

¹F6 (Add/Clear breakpoint) or F13 (Work with module breakpoints) from th

Display Module Source display

¹

The

BREAK

debug

command to set a job breakpoint

¹

The

CLEAR

debug

command to remove a jobbreakpoint

¹The Work with Module Breakpoints display.

The simplest way to set and remove an

unconditional job breakpoint is t

(Add/Clear breakpoint). The function key

acts

as

a

toggle and

so

it wi

breakpoint from the line your cursor is

on,

if

a

breakpoint

is

alread

To remove an unconditional job breakpoint using F13 (Work with module bre points), press F13 (Work with module breakpoints) from the Display Module

178 ILE RPG for AS/400 Programmer's Guide

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Page 202
Image 202
IBM AS/400 manual Breakpoints, Setting and Removing, With the source positioned at the line where the breakpoint
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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.
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