As simple Web access to data housed on corporate mainframes is fast becoming a core business requirement, mainframe programmers need to learn how to develop Java applications to keep pace with growing corporate needs. Focusing on concepts familiar to mainframe programmers, this book gives step-by-step guidance on how to use Java to access file and database structures common to mainframe environments. After comparing Java and mainframe languages such as COBOL and PL/I, Marco goes on to cover Java implementations for IBM's OS/390 and advanced Java programming techniques, including Java classes and EJB. A must-read for anyone who needs to provide users with access to business data via a Web interface, this book is a logical companion to System 390 JCL (0-471-28309-6), our bestselling mainframe programming book now in its fourth edition.

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.

This IBM® Redbooks® publication can help you develop content and process management applications with IBM FileNet® APIs. The IBM FileNet P8 suite of products contains a set of robust APIs that range from core platform APIs to supporting application APIs. This book focuses specifically on Content Engine and Process Engine APIs. Content Engine API topics that we discuss include creating, retrieving, updating, and deleting objects; querying and viewing documents; and batching and batch execution. We also explore more complex topics, including permissions and authorization, versioning, relationships, annotations, workflow subscriptions and event actions, metadata discovery, and dynamic security inheritance. Process Engine API topics that we discuss include launching a workflow, searching for and processing work items, and working with process status. The more complex topics we cover include, Component Integrator application space, role, workbasket, resource navigation in Process Engine REST API, ECM Widgets, and building a custom Get Next In-basket widget. To help you better understand programming with IBM FileNet APIs, we provide a sample application implemented for a fictional company. We include the data model, security model, workflows, and various applications developed for the sample. You can download them for your reference. This book is intended for IBM FileNet P8 application developers. We recommend using this book in conjunction with the online ECM help.

This IBM® Redbooks® publication provides students of information systems technology with the background knowledge and skills necessary to begin using the basic facilities of a mainframe computer. It is the first in a planned series of book designed to introduce students to mainframe concepts and help prepare them for a career in large systems computing. For optimal learning, students are assumed to have successfully completed an introductory course in computer system concepts, such as computer organization and architecture, operating systems, data management, or data communications. They should also have successfully completed courses in one or more programming languages, and be PC literate. This book can also be used as a prerequisite for courses in advanced topics or for internships and special studies. It is not intended to be a complete text covering all aspects of mainframe operation or a reference book that discusses every feature and option of the mainframe facilities. Others who will benefit from this book include experienced data processing professionals who have worked with non-mainframe platforms, or who are familiar with some aspects of the mainframe but want to become knowledgeable with other facilities and benefits of the mainframe environment.

Even as spending on digital transformation continues to skyrocket, mainframes nevertheless have major advantages for global enterprises. These systems still process huge amounts of information and allow for highly secure processing. In this practical book, author Tom Taulli shows software developers how to pursue a hybrid approach by integrating traditional mainframes and applications with modern digital systems. By the end of the book, you'll have a solid understanding of the mainframe architecture and ecosystem, including core concepts and technologies such as COBOL, JCL, DB2, VSAM, and CICS. You'll learn how to blend in newer technologies such as the cloud, AI and machine learning, and the use of microservices. This handbook is indispensable for enterprises looking to thrive in the new digital world. Learn strategies and approaches for mainframe DevOps Update and maintain existing mainframe code, and analyze and resolve common errors Apply modern approaches to the mainframe, including microservices, APIs, cloud, and AI and machine learning Work with datasets and databases and put together effective reports Understand how to work with modern cloud systems, like AWS, for pursuing data migration

Java is now used with increasing frequency to develop mission-critical applications. Using Java Management Extensions (JMX) is the key to managing those applications. As JMX is increasingly accepted into the fields of embedded systems, enterprise systems, and telephony, it is clear that all Java developers will encounter JMX before long. Java(TM) and JMX: Building Manageable Systems is the definitive guide to JMX, combining an introduction to the technology with extensive coverage that will make this book a favorite reference. Much more than just an explanation of the JMX specifications, this book can drastically reduce a reader's JMX learning curve by explaining how to develop management requirements and apply JMX to them. The book's coverage includes: A management primer for Java programmers and architects A historical perspective on the evolution of JMX and its relation to other management standards, including SNMP, CIM/WBEM, TMN, and CMIP Development of JMX Manageable Resources with Standard and Dynamic MBeans Development with Model MBeans as customizable generic instrumentation using both the JMX APIs and XML files MBeanServer, including the MBean registry and object naming scheme, the generic MBean interface, and the query mechanism JMX Monitors and Notifications MBeanServer Services including the timer, relationship, and dynamic loading, along with custom services for XML services, HTTP adapters, RMI connectors, and security exposures and permissions JMX best practices, including deployment patterns, instrumentation patterns, federation patterns, and best practices JMX integration into J2EE and the JSR077 management models in J2EE 1.4 Using JMX to manage Web services from the perspective of service providers, registry providers, and users Written with an unparalleled degree of in-the-trenches familiarity and full of practical examples and working sample code, Java(TM) and JMX is a must-have introduction, technological guide, and reference for Java architects and developers. 0672324083B12052002

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 fourth volume in a series of four. They 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 focuses on the latest enhancements in IBM IMSTM batch support. IMS has been available to clients for 45 years as IMS Transaction Manager, IMS Database Manager, or both. The audience for this book includes IT architects and application developers with a focus on batch processing on the z/OS platform.

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.

IBM® CICS® is a mixed language application server that runs on IBM Z®. Over the 50 years since CICS was introduced in 1969, enterprises have used the qualities of service (QoSs) that CICS provides to allow them to create high throughput and secure transactional applications that have powered their business. As the IT landscape has evolved, so has CICS to allow these applications to integrate with new platforms and still provide value to the rest of the business. Because of this capability, many businesses still rely on CICS to power their core applications. This IBM Redpaper publication focuses on modernizing these CICS applications, allowing them to integrate with cloud-native applications. This modernization can be achieved either by constructing application programming interfaces (APIs) that allow new cloud-native applications to connect to your existing assets, rewriting parts of your application in newer languages and hosting them back on CICS, or by using CICS capabilities to extend your applications to provide new capabilities and functions. The paper takes a traditional example application and shows you how it works. Then, the paper extends the example, rewrites portions of its functions, and enables its APIs. It also explains how CICS applications can use continuous integration (CI) and continuous delivery (CD) to deliver, test, and deploy code into CICS easily and with quality.

Presented as a practical approach suitable for new users of IBM's mainframe system, "Designing & Programming CICS Applications" is designed to give insights into the range of features provided by CICS. Written for experienced users, the book explains how to integrate existing mainframe systems with newer technologies.