The Javatrade; 2 Enterprise Edition (J2EE) platform connector architecture is the key component in Java's support for enterprise application integration (EAI) and for linking enterprise information systems (EISs) with Web services. Because many services are now provided through the Web, it is essential that business enterprises have an efficient EAI solution. J2EEtrade; Connector Architecture and Enterprise Application Integration is the definitive guide to showing enterprise organizations how to incorporate existing enterprise infrastructure and applications, taking them into the Web-enabled economy of the future.Written for application component developers who are building Connector architecture applications, J2EEtrade; Connector Architecture and Enterprise Application Integration explains how to connect applications not only to one another but also to a multitude of EISs and legacy systems. This book is also of interest to independent software developers (ISVs) and others who develop resource adapters for specific EISs. Readers will learn how to link underlying infrastructure products with J2EE application server and platform technologies. 0201775808B11052001

Rahul Sharma is the lead architect of the J2EE Connector architecture and a Senior Staff Engineer at the Java Software division of Sun Microsystems, Inc. Presently, he is the lead architect of the JAX-RPC (Java APIs for XML based RPC) 1.0. Rahul has been with Sun for the last five years. Rahul holds a computer engineering degree from the Delhi University, India, and an MBA from the Haas School of Business, UC Berkeley.

Beth Stearns is the principal partner of ComputerEase Publishing, a computer consulting firm she founded in 1982. Among her publications are Java Native Interface in The Java Tutorial Continued (Addison-Wesley), “The EJB Programming Guide” for Inprise Corporation, and “ Understanding EDT, ” a guide to Digital Equipment Corporation's text editor.

Tony Ng is a Staff Engineer with Sun Microsystems. He is currently the project lead of the J2EE SDK and Reference Implementation. He has designed and implemented a number of Java technologies, including the J2EE Connector Architecture, the Java Transaction Service, and the J2EE Blueprints. Tony has a B.S. degree in Computer Science from the University of Illinois, Urbana-Champaign, and a S.M. degree in Electrical Engineering and Computer Science from Massachusetts Institute of Technology.

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This book provides an in-depth coverage of the Java 2, Enterprise Edition (J2EE) platform Connector architecture. The Connector architecture is an integral part of the J2EE platform, and, as a key component in the platform's support for application integration, it ensures that J2EE applications can connect to and use a multitude of EISs and legacy systems. The Connector architecture, because it defines a standard set of contracts for handling connections, transactions, and security, makes it easier for vendors to develop products that can hook into the J2EE platform. Vendors follow the guidelines of these Connector contracts to develop special software modules, called resource adapters, that enable this linkage between their underlying products and the J2EE platform.This book is written for application component developers who are building applications that run on the J2EE platform. It is also of interest to independent software vendors (ISVs) and others who develop resource adapters for specific EISs, such as legacy and database systems. Conventions Used in This BookThis book uses certain graphical conventions.The graphical conventions used here are based on the Unified Modeling Language (UML) standard. UML is a modeling language for object-oriented development. In general, object-oriented modeling decomposes systems into collaborating objects. The resulting model captures the underlying semantics of a problem. UML defines different models for representing systems, and graphical diagrams to depict these models, including a class model, a state model, a use case model, an interaction model, an implementation model, and a deployment model.We only use a subset of the UML diagrams in this book. The diagrams of most interest to readers are the class diagrams, which depict static structure, and sequence, object, and collaboration diagrams, which depict dynamic object interactions.Note that we use the terms application server, server, and J2EE application server interchangeably. Unless otherwise noted, these three terms all refer to a J2EE application server.For those interested in more information about UML, we refer you to the following sources: UML Distilled,Second Edition, Fowler, Scott, 2000, Addison-Wesley Instant UML,Muller, 1997, Wrox Press Ltd. Other Sources of InformationYou should refer to other publications related to J2EE and to the J2EE Web site, http://java.sun.com/j2ee/. The following books, both online and in print, are of particular interest to those developing J2EE Connectors and other application components. Java 2 Platform, Enterprise Edition Connector Specification,2000, Sun Microsystems, Inc. Available at http://java.sun.com/j2ee/docs.html. Java Message Service API,2000, Sun Microsystems, Inc. Available at http://java.sun.com/j2ee/docs.html. Java 2 Standard Edition Platform (J2SE),2000, Sun Microsystems, Inc. Available at http://java.sun.com/products. Java Authentication and Authorization Service (JAAS) 1.0 Specification,2000, Sun Microsystems, Inc. Available at http://java.sun.com/products/jaas. Java 2 Platform, Enterprise Edition, Platform and Component Specifications,Shannon, Hapner, Matena, Davidson, Pelegri-Llopart, Cable, Enterprise Team, 2000, Addison-Wesley. Enterprise JavaBeans 2.0 Specification,Copyright 2001, Sun Microsystems, Inc. Ava