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IBM CICS and the JVM server: Developing and Deploying Java Applications

An IBM Redbooks publication


Published on 24 June 2013, updated 15 July 2013

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ISBN-10: 0738438332
ISBN-13: 9780738438337
IBM Form #: SG24-8038-00

Authors: Chris Rayns, George Bogner, Tony Fitzgerald, Elisabetta Flamini, Jun Hua Gao, Ivan D Hargreaves, Phil Wakelin, Hongtao Wen and Bei Chun Zhou

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    This IBM® Redbooks® publication provides information about the new Java virtual machine (JVM) server technology in IBM CICS® Transaction Server for z/OS® V4.2. We begin by outlining the many advantages of its multi-threaded operation over the pooled JVM function of earlier releases. The Open Services Gateway initiative (OSGi) is described and we highlight the benefits OSGi brings to both development and deployment.

    Details are then provided about how to configure and use the new JVM server environment. Examples are included of the deployment process, which takes a Java application from the workstation Eclipse integrated development environment (IDE) with the IBM CICS Explorer® software development kit (SDK) plug-in, through the various stages up to execution in a stand-alone CICS region and an IBM CICSPlex® environment.

    The book continues with a comparison between traditional CICS programming, and CICS programming from Java. As a result, the main functional areas of the Java class library for CICS (JCICS) application programming interface (API) are extensively reviewed.

    Further chapters are provided to demonstrate interaction with structured data such as copybooks, and how to access relational databases by using Java Database Connectivity (JDBC) and Structured Query Language for Java (SQLJ).

    Finally, we devote a chapter to the migration of applications from the pooled JVM model to the new JVM server run time.

    Table of Contents

    Part 1. Introduction and Java virtual machine server enablement

    Chapter 1. Introduction

    Chapter 2. Open Services Gateway initiative overview

    Chapter 3. Setting up a Java virtual machine server

    Chapter 4. Deploying from CICS Explorer SDK

    Chapter 5. Diagnostics

    Part 2. Application development

    Chapter 6. Developing a simple Java application

    Chapter 7. The Java CICS application programming interface

    Chapter 8. Interacting with structured data

    Chapter 9. Accessing DB2 by using JDBC and SQLJ

    Chapter 10. Migration

    Appendix A. Installing the CICS Explorer software development kit

    Appendix B. Java EE Connector Architecture tools


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