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

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

Author: Chris Rayns

Publisher: IBM Redbooks

Published: 2013-07-15

Total Pages: 406

ISBN-13: 0738438332

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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.

Application Development for IBM CICS Web Services

Application Development for IBM CICS Web Services PDF

Author: O'Grady James

Publisher: IBM Redbooks

Published: 2015-01-27

Total Pages: 552

ISBN-13: 0738440310

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This IBM® Redbooks® publication focuses on developing Web service applications in IBM CICS®. It takes the broad view of developing and modernizing CICS applications for XML, Web services, SOAP, and SOA support, and lays out a reference architecture for developing these kinds of applications. We start by discussing Web services in general, then review how CICS implements Web services. We offer an overview of different development approaches: bottom-up, top-down, and meet-in-the-middle. We then look at how you would go about exposing a CICS application as a Web service provider, again looking at the different approaches. The book then steps through the process of creating a CICS Web service requester. We follow this by looking at CICS application aggregation (including 3270 applications) with IBM Rational® Application Developer for IBM System z® and how to implement CICS Web Services using CICS Cloud technology. The first part is concluded with hints and tips to help you when implementing this technology. Part two of this publication provides performance figures for a basic Web service. We investigate some common variables and examine their effects on the performance of CICS as both a requester and provider of Web services.

The Complete Guide to CICS Transaction Gateway Volume 1 Configuration and Administration

The Complete Guide to CICS Transaction Gateway Volume 1 Configuration and Administration PDF

Author: Rufus Credle

Publisher: IBM Redbooks

Published: 2014-08-08

Total Pages: 396

ISBN-13: 0738439738

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In this IBM® Redbooks® publication, you will gain an appreciation of the IBM CICS® Transaction Gateway (CICS TG) product suite, based on key criteria, such as capabilities, scalability, platform, CICS server support, application language support, and licensing model. Matching the requirements to available infrastructure and hardware choices requires an appreciation of the choices available. In this book, you will gain an understanding of those choices, and will be capable of choosing the appropriate CICS connection protocol, APIs for the applications, and security options. You will understand the services available to the application developer when using a chosen protocol. You will then learn about how to implement CICS TG solutions, taking advantage of the latest capabilities, such as IPIC connectivity, high availability, and Dynamic Server Selection. Specific scenarios illustrate the usage of CICS TG for IBM z/OS®, and CICS TG for Multiplatforms, with CICS Transaction Server for z/OS and IBM WebSphere® Application Server, including connections in CICS, configuring simple end-to-end connectivity (all platforms) with verification for remote and local mode applications, and adding security, XA support, and high availability.

Modernizing Applications with WebSphere eXtended Transaction Runtime

Modernizing Applications with WebSphere eXtended Transaction Runtime PDF

Author: John Kurian

Publisher: IBM Redbooks

Published: 2012-11-28

Total Pages: 130

ISBN-13: 0738450707

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IBM® WebSphere eXtended Transaction Runtime V2.1 is an addition to the IBM Transaction Processing capabilities. This product provides a fast, scalable, and reliable transaction processing experience. Many customers have invested much time and effort in the development of business logic in CICS® style COBOL and C applications and are looking to unlock the value of those applications and extend them by using Java EE. This paper helps you explore this product and provides information that helps you host your CICS style COBOL and C applications on a WebSphere platform. This paper also provides you with a detailed step-by-step approach for modernizing your existing Tuxedo-based applications through a migration to WXTR. This paper is intended for developers and architects who want to extend and reuse their CICS style COBOL and C applications.

IBM CICS and Liberty: What You Need to Know

IBM CICS and Liberty: What You Need to Know PDF

Author: Hernan Cunico

Publisher: IBM Redbooks

Published: 2017-03-15

Total Pages: 252

ISBN-13: 0738441368

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This IBM® Redbooks® publication, intended for architects, application developers, and system programmers, describes how to design and implement Java web-based applications in an IBM CICS® Liberty JVM server. This book is based on IBM CICS Transaction Server V5.3 (CICS TS) using the embedded IBM WebSphere® Application Server Liberty V8.5.5 technology. Liberty is an asset to your organization, whether you intend to extend existing enterprise services hosted in CICS, or develop new web-based applications supporting new lines of business. Fundamentally, Liberty is a composable, dynamic profile of IBM WebSphere Application Server that enables you to provision Java EE technology on a feature-by-feature basis. Liberty can be provisioned with as little as the HTTP transport and a servlet web container, or with the entire Java EE 6 Web Profile feature set depending on your application requirements. This publication includes a Technology Essentials section for architects and application developers to help understand the underlying technology, an Up-and-Running section for system programmers implementing the Liberty JVM server for the first time, and a set of real-life application development scenarios.

Designing and Programming CICS Applications

Designing and Programming CICS Applications PDF

Author: John Horswill

Publisher: "O'Reilly Media, Inc."

Published: 2000-07-31

Total Pages: 416

ISBN-13: 1449313620

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Designing and Programming CICS Applications targets 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. Users learn not only how to design and write their programs, but also how to deploy their applications.

J2EE Connector Architecture and Enterprise Application Integration

J2EE Connector Architecture and Enterprise Application Integration PDF

Author: Rahul Sharma

Publisher: Addison-Wesley Professional

Published: 2001

Total Pages: 422

ISBN-13: 9780201775808

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This handbook on J2EE (Java 2 Enterprise Edition) platform connector architecture shows how to maximise J2EE applications within the application integration space. It includes a detailed look at connection pooling, transactions and managing security.

CICS and SOA: Architecture and Integration Choices

CICS and SOA: Architecture and Integration Choices PDF

Author: Chris Rayns

Publisher: IBM Redbooks

Published: 2012-03-26

Total Pages: 322

ISBN-13: 0738436739

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The service-oriented architecture (SOA) style of integration involves breaking an application down into common, repeatable services that can be used by other applications (both internal and external) in an organization, independent of the computing platforms on which the business and its partners rely. In recent years CICS® has added a variety of support for SOA and now provides near seamless connectivity with other IT environments. This IBM® Redbooks® publication helps IT architects to select, plan, and design solutions that integrate CICS applications as service providers and requesters. First, we provide an introduction to CICS service enablement and introduce the architectural choices and technologies on which a CICS SOA solution can be based. We continue with an in-depth analysis of how to meet functional and non-functional requirements in the areas of application interface, security, transactional scope, high availability, and scalability. Finally, we document three integration scenarios to illustrate how these technologies have been used by customers to build robust CICS integration solutions.

New Ways of Running Batch Applications on z/OS: Volume 1 CICS Transaction Server

New Ways of Running Batch Applications on z/OS: Volume 1 CICS Transaction Server PDF

Author: Daniel Millwood

Publisher: IBM Redbooks

Published: 2013-10-31

Total Pages: 72

ISBN-13: 0738437948

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Mainframe computers play a central role in the daily operations of many of the world's largest corporations. Batch processing is still a fundamental, mission-critical component of the workloads that run on the mainframe. A large portion of the workload on IBM® z/OS® systems is processed in batch mode. This IBM Redbooks® publication is the first volume in a series of four in which we specifically address new technologies introduced by IBM to facilitate the use of hybrid batch applications that combine the best aspects of Java and procedural programming languages such as COBOL. This volume specifically focuses on the latest support in CICS to run batch tasks. The audience for this book includes IT architects and application developers, with a focus on batch processing on the z/OS platform in a CICS environment.