Designing and Programming CICS Applications

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By John Horswill, Members of the CICS Development Team at IBM Hursley

Publisher: O'Reilly Media

Released: July 2000

Pages: 414

CICS is an application server that delivers industrial-strength, online transaction management for critical enterprise applications. Proven in the market for over 30 years with many of the world's leading businesses, CICS enables today's customers to modernize and extend their applications to take advantage of the opportunities provided by e-business while maximizing the benefits of their existing investments.

Designing and Programming CICS Applications will benefit a diverse audience. It introduces new users of IBM's mainframe (OS/390) to CICS features. It shows experienced users how to integrate existing mainframe systems with newer technologies, including the Web, CORBA, Java, CICS clients, and Visual Basic; as well as how to link MQSeries and CICS.

Each part of Designing and Programming CICS Applications addresses the design requirements for specific components and gives a step-by-step approach to developing a simple application. The book reviews the basic concepts of a business application and the way CICS meets these requirements. It then covers a wide range of application development technologies, including VisualAge for Java, WebSphere Studio, and Visual Basic. Users learn not only how to design and write their programs but also how to deploy their applications.

Designing and Programming CICS Applications shows how to:

Develop and modify existing COBOL applications
Become familiar with the CICS Java environment and write a simple Java wrapper for a COBOL application
Develop a web front end using servlets, JSP and JavaBeans.
Link the web front end to an existing COBOL application using CORBA
Write a Visual Basic application to develop a customer GUI
Link an existing COBOL application using a CICS Client ECI call
Develop a Java application using Swing as an MQSeries Client
Use the MQSeries-CICS bridge to access an existing COBOL application

Whether for working with thousands of terminals or for a client/server environment with workstations and LANs exploiting modern technology such as graphical interfaces or multimedia, Designing and Programming CICS Applications delivers the power to create, modernize and extend CICS applications.

Introduction to CICS
1. Chapter 1 Introduction
  1. The Essentials of a Business Application
  2. Business Applications as Creators of Value
  3. Using CICS for Business Applications
2. Chapter 2 Designing Business Applications
  1. The Heart of a Business Application
  2. How CICS Can Help the Application Designer
  3. Developing the Components of a Business Application
  4. What’s Next…
3. Chapter 3 Introducing the Sample Application
  1. The Business Case
  2. The Design of the Sample Application
  3. What’s Next…
The COBOL Business Logic Component
1. Chapter 4 Designing the Business Logic
  1. Understanding What COBOL Components Need to Do
  2. Incorporating CICS Design Guidelines
  3. Handling Data
  4. Designing the Individual Functions
  5. Mapping the Functions to CICS Programs
  6. Looking at the Business Logic Programs
  7. Summary
2. Chapter 5 Programming the COBOL Business Logic
  1. Writing CICS Programs in COBOL
  2. Handling Files
  3. Saving Data: Using a Scratchpad Facility
  4. Controlling Programs
  5. Abending a Transaction
  6. Queuing Facilities: Temporary Storage and Transient Data
  7. Handling Errors
  8. What’s Next…
The CICS Java Component
1. Chapter 6 Designing the CICS Java Component
  1. Background to Java and CORBA in a CICS Environment
  2. Understanding What This Component Needs to Do
  3. Describing a Customer Account Object with IDL
  4. Design of the CICS Java Component
  5. Implementing CICS Java Components
  6. What’s Next…
2. Chapter 7 Programming the CICS Java Component
  1. Tools
  2. Setting Up Your Development Environment
  3. Creating and Compiling the IDL Definition
  4. Writing the Server Implementation Class
  5. Exporting and Binding the Server Application to the CICS Region
  6. Creating the CORBA Client
  7. What’s Next…
The Web Component
1. Chapter 8 Designing the Web Component
  1. Understanding What the Component Needs To Do
  2. Designing the Web Interface
  3. Designing the Web Server Components
  4. Designing the CORBA Client Implementation
  5. What’s Next…
2. Chapter 9 Programming the Web Component
  1. Tools
  2. Building the Web Site
  3. Programming the Web Server Components
  4. What’s Next…
The 3270 Interface
1. Chapter 10 Designing the Presentation Logic
  1. Understanding What the Presentation Logic Component Needs to Do
  2. Interface Design Principles
  3. Incorporating CICS Design Guidelines
  4. Designing the Functions
2. Chapter 11 Programming the 3270 Presentation Logic Component
  1. Defining Screens with Basic Mapping Support (BMS)
  2. Symbolic Description Maps
  3. Sending a Map to a Terminal
  4. Local Printing (NACT03): Requests for Printing
  5. What’s Next…
The Visual Basic Component
1. Chapter 12 Designing the Visual Basic Component
  1. Understanding What the Component Needs to Do
  2. Designing the Graphical User Interface
  3. Designing the Print Function
  4. Designing the Online Help
  5. Designing the Data Validation
  6. Designing Access to and Control of the CICS Application
  7. Designing Error Handling
2. Chapter 13 Programming the Visual Basic Program
  1. Writing the Graphical User Interface
  2. Implementing the Print Function
  3. Implementing the Online Help
  4. Implementing the Data Validation Code
  5. Accessing Applications on the CICS Server
  6. Communicating with CICS
  7. What’s Next….
CICS and MQSeries
1. Chapter 14 Designing an Application to Use the MQSeries-CICS Bridge
  1. Background to MQSeries
  2. The MQSeries-CICS Bridge
  3. Designing the Graphical User Interface
  4. Designing the Java Application
  5. Configuring MQSeries
  6. Running CICS DPL Programs
  7. Why Design It This Way?
  8. What’s Next…
2. Chapter 15 Programming the MQSeries-CICS Bridge
  1. Building the Java GUI
  2. Coding the Java Application
  3. Setting Up MQSeries and CICS
  4. What’s Next…
Debugging
1. Chapter 16 Debugging in CICS
  1. CICS-Supplied Transactions
  2. EDF: Execution Diagnostic Facility
  3. Summary
Appendices
1. Appendix Configuring Your CICS for OS/390 Environment
  1. Getting Ready
  2. Using the CD-ROM
  3. Configuring the COBOL Component
  4. Configuring the CICS Java Component
  5. Using the PDF Files for the CICS Main Library
2. Appendix List of CD-ROM Files
  1. Files Used by the COBOL Application

Glossary
Appendix Suggestions for Further Reading
Colophon

Title:

Designing and Programming CICS Applications

By:

John Horswill, Members of the CICS Development Team at IBM Hursley

Publisher:

O'Reilly Media

Formats:

Print
Ebook
Safari Books Online

Print:

July 2000

Ebook:

July 2011

Pages:

414

Print ISBN:

978-1-56592-676-9

| ISBN 10:

1-56592-676-5

Ebook ISBN:

978-1-4493-1192-6

| ISBN 10:

1-4493-1192-X

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Our look is the result of reader comments, our own experimentation, and feedback from distribution channels. Distinctive covers complement our distinctive approach to technical topics, breathing personality and life into potentially dry subjects. The animal on the cover of Designing and Programming CICS Applications is a gyr falcon. The gyr falcon has been characterized as a "heavily built bird." Hailing from Northern Canada, it inhabits the open tundra areas, but can be seen as far south as the United States/Canadian border. The gyr falcon's plumage varies from white to gray, depending on its region. This bird of prey's diet consists mainly of small rodents and other birds.

The black gyr falcon is popular in Europe, and over generations has been crossed with the peregrine hawk to produce the gyr/peregrine. The male, which is smaller than the female, is known as an excellent game hawk, while the female is noted for her precise hunting abilities. Maureen Dempsey was the production editor and copyeditor for Designing and Programming CICS Applications. Norma Emory was the proofreader. Sarah Jane Shangraw and Madeleine Newell provided quality control. Brenda Miller wrote the index.

Hanna Dyer designed the cover of this book, based on a series design by Edie Freedman. The cover image is a 19th-century engraving from the Dover Pictorial Archive. Emma Colby produced the cover layout with QuarkXPress 4.1 using Adobe's ITC Garamond font.

Alicia Cech and David Futato designed the interior layout based on a series design by Nancy Priest. Mike Sierra implemented the design in FrameMaker 5.5.6. The text and heading fonts are ITC Garamond Light and Garamond Book. The illustrations that appear in the book were produced by Robert Romano and Rhon Porter using Macromedia FreeHand 8 and Adobe Photoshop 5. This colophon was written by Maureen Dempsey.

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Designing and Programming CICS Applications Review

By Axel Schwarzer

from Undisclosed

Comments about O'Reilly Media Designing and Programming CICS Applications:

If you are new to Java(Script) and that kind of programming this book won't help. It is limited to descriptions like "do a click here and one there and you're done": the backgrounds became not clearer to me. Instead of explaining pull down lists which change with every release the book would have benefitted from diagrams which show the relationship between the java parts.

Some parts were superfluous: handing over a clear error message with description to the user doesn't need to be mentioned at all, it's quite normal and doesn't need to be stressed more than once.

Although I knew that IBM was involved writing this book I was astonished about the frequency their products were mentioned. If it is essential for my programming success to use Version x.y.z.a.b.c because x.y.z.a.b.d won't work then I will continue searching for other solutions.

I found two or three minor typos i some illustrations. If you are new to the theme it is difficult to distinguish between the illustration and the text: which is the right one?

8/28/2000

4.0

Designing and Programming CICS Applications Review

By Jim Gillard

from Undisclosed

Comments about O'Reilly Media Designing and Programming CICS Applications:

The book offers a reasonably good introduction to CICS programming on the mainframe. There are better and more complete guides.

The JAVA and VB WEB interfaces appear to be functional and can probably be used as templates for coding server side interfaces. There is a good section on setting up the Web Server components.

What I missed, and have been unable to find anywhere, was a presentation of using native CICS WEB or DOCUMENT calls. I guess I'm forced to examine the support packs which have limited explanations of what they are doing. Another missing piece is an example of modifying generated HTML from BMS maps to tailor the GUI generated into a more acceptable format. I've looked at the samples from the IBM seminars and they are too simplistic for most applications.

So, if you have an existing CICS app on which you want to quickly put on a GUI interface (customized), this book won't help and I don't know where you can find one.

Displaying reviews 1-2

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Introduction to CICS

Chapter 1 Introduction

Chapter 2 Designing Business Applications

Chapter 3 Introducing the Sample Application

The COBOL Business Logic Component

Chapter 4 Designing the Business Logic

Chapter 5 Programming the COBOL Business Logic

The CICS Java Component

Chapter 6 Designing the CICS Java Component

Chapter 7 Programming the CICS Java Component

The Web Component

Chapter 8 Designing the Web Component

Chapter 9 Programming the Web Component

The 3270 Interface

Chapter 10 Designing the Presentation Logic

Chapter 11 Programming the 3270 Presentation Logic Component

The Visual Basic Component

Chapter 12 Designing the Visual Basic Component

Chapter 13 Programming the Visual Basic Program

CICS and MQSeries

Chapter 14 Designing an Application to Use the MQSeries-CICS Bridge

Chapter 15 Programming the MQSeries-CICS Bridge

Debugging

Chapter 16 Debugging in CICS

Appendices

Appendix Configuring Your CICS for OS/390 Environment

Appendix List of CD-ROM Files

Glossary

Appendix Suggestions for Further Reading

Colophon

John Horswill

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