Target Audience

The course is aimed at developers not familiar with Casegen on-line program development. This course covers all aspects of On-Line Programming with Casegen. The course teaches the design, writing and testing of COBOL or PL/1 Casegen programs. Many exercises are performed by the developer, tailored to the client's Casegen operating environment, to ensure that the statements taught are fully understood and practical experience is gained. As part of this course, INTERTEST or XPEDITER is also taught if applicable to the installation.

Pre-requisites

This course is suitable for analysts and programmers with COBOL or PL/1 knowledge, together with some basic understanding of CICS or IMS. If possible, we recommend that Casegen Batch training, GC02, is completed first, as well as training in DB2 or DL/1, if applicable.

Course Objectives

Whilst covering the basics of On-Line Casegen programming and how it is used, this course also aims to give an insight into structuring Casegen programs, data access and the data group, validation, screen definitions, Casegen list programs and custom code. On completion of this course the student will be able to:

•     Develop structured Casegen On-Line Programs
•     Develop screen based programs
•     Understand and use the different validation methods within Casegen - field level validation, cross-field edits and segment edits
•     Generate Database access
•     Customise the generated data access
•     Understand and develop list programs
•     Understand and use the various custom code points within a Casegen program
•     Understand and manipulate Casegen generated variables

Course Environment

Development will be performed using:

•     Casegen

Course Details

CASEGEN OVERVIEW

Introduction To Casegen Builder

Casegen Builder Development Structure

Casegen Builder Program Structure

Navigation Around Casegen Builder

Steps Required To Build An On-Line Program

How To Access Casegen Builder

Summary

PROGRAM CREATION

Open Program

Changing ProjectS

New Program

Using A Template Program

Copying A Program

SCREEN DESIGN

Open Program

Main Menu

Designer Menu - Text Entry

Data Field Entry

Fields Menu

Errmsg1

Designer Menu - Cursor Positioning

Designer Menu - Screen Layout Adjusting

Designer Menu - Field Adjusting

Designer Menu - Field Attributes

Lists Menu - Field Attributes

Output Field Attributes

Input Field Attributes

Outin Field Attributes

Action Field Attributes

Field Name

Variable Name

Required

Intensity

Upper Case Conversion

Blank When Zero

Picture

Protected

Map Out

Casegen Specification

Field Sub

Input/Alpha Field Sub

Output/Alpha Field Sub

Input/Numeric Field Sub

Output/Numeric Field Sub

Translate

Mask

Range

Values

Designer Menu - Colour Control

Full Screen Editing

PROCESSING DEFINITION

Program Structure

Misc Menu - Working Storage

Misc Menu - Inter-Program Communication

Misc Menu - Misc Parameters

Misc Menu - Misc Parameters More

Transfer Control

DATABASE ACCESS

DB2 Data Access Types

Automatic Data Access

Manual Data Access

Data Access Call Types

Data Access Customisation

Ignore Codes

Data Access Result Testing

Customising Affected Columns

Into Clause Customisation

Where Clause Customisation

DB2 - Fields

DB2 - Columns

DB2 - Aliases

DB2 - Comparison

DB2 - Functions

DB2 - Time/Date

DB2 - Keywords

NATIVE CODE

Native Code Editor

Skeletons

External Copybook Specification

Guidelines

Methods Of Including Custom Code

Custom Code Points

Nested Copy

User Section

Automatic Code

CONSISTENCY VALIDATION

Types Of Consistency Checks

Xfvalid - Cross Field Validation

Dbvalid - Database Validation

Source - Cobol Ii Source Code

PFKEY HANDLING

PFKEY Selection

Invoke Program Transfer

Display Error Message

Customised Pfkey Handling

External Copybook Inclusion

LIST SCREEN PROCESSING

Program Structure Additions

Characteristics Of A List Screen

List Screen Restrictions

Group List Definition

Extra Parameters

Parameters

Required Screen Fields For Paging

Automatic Line Numbering

Action Field Extract Array/Target Parameter

Transfer Work Area Fields

List Data Access

CASEGEN VARIABLES

Program-Control

Link-Program-Suffix

Pfkey-Indicator

Attribute Setting

CASEGEN UTILITIES

File Editor

Transfers To Other Applications

PROGRAM GENERATION

Cobol II Generation

BMS Source Generation

PROGRAM TESTING

Xpediter/CICS

Invoking Xpediter/CICS

Testing With Xpediter/CICS

Program Control

Single Stepping

Display/Update Of Variables

Forcing An Abend

Further Information

Course Format

Practical sessions make up a large part of the course, allowing delegates to demonstrate and reinforce the lectures given. During these sessions the delegate will gain experience of writing and testing different types of Casegen On-Line programs using the various program structures available. Examples are used extensively, ranging from simple code snippets to full applications with complete ‘real world’ functionality. These are supplied at the start of the course and it is encouraged that the delegates execute and ‘experiment’ with these under the instructor’s guidance as they are introduced. These examples are available to take away, along with the delegate’s own work. The comprehensive Student Guide supplied is fully indexed serving as a useful reference tool long after the course has finished. Delegates will also be able to access a free help-line with technical questions relating to topics covered on the course.