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