Advanced Java Networking (2nd Edition)

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9780130844668: Advanced Java Networking (2nd Edition)

Reveals how to optimize networked applications with such architectural elements as multithreading, serialization, and I/O. Softcover. CD-ROM included. DLC: Java (Computer program language).

"synopsis" may belong to another edition of this title.

Review:

Advanced Java Networking, Second Edition--an excellent introduction to sockets, RMI, IDL/CORBA, JDBC, and other APIs--surveys all the ways to create state-of-the-art server-side solutions with Java. If you're a developer or architect, this book can help you build scalable Internet solutions.

Advanced Java is notable in at least two ways. First and foremost, it presents each Java networking API with real intelligence and enthusiasm. The authors of the second edition (who have revised the book thoroughly) prove they have considerable teaching experience by including plenty of interesting examples. The same application (for a simple appointment-scheduling program) is used throughout the text. You learn how to use sockets, RMI, IDL/CORBA, and even servlets and JSPs to build different versions of the same application. This comparative approach gives you a sense of the strengths of each API. (A final chapter here outlines when to use each API, depending on your design needs.)

Besides hands-on coding examples, several chapters present a high-level introduction to new Java APIs like JINI, naming services, and JNDI, plus EJBs and network management with JMAP. Generally, this book strikes a good balance between explaining the underlying technology behind each Java API, and providing basic sample code to help get you started. While you certainly don't need to use every networking API for every project, this title introduces them all so that you can choose the best approach. The new edition of Advanced Java Networking packages an excellent mix of sample code and technological expertise--of value in choosing the best options for networking on today's Java platform. --Richard Dragan

Topics covered:

  • Object-oriented design in Java
  • Java I/O routines
  • Threads
  • Object serialization
  • Performance
  • TCP/IP and networking basics
  • Programming Java sockets for TCP and UDP
  • JDBC for databases
  • Java Remote Method Invocation (RMI)
  • Callbacks
  • Overview of CORBA
  • Java IDL
  • HTTP basics

  • CGI vs. servlets
  • Java Server Pages (JSPs)
  • JavaBeans for clients and servers
  • Enterprise JavaBeans (EJBs) basics
  • Microsoft COM/DCOM components
  • Application servers (performance, database-connection pooling, and scalability issues)
  • JINI basics
  • JMX/JMAP for network management
  • JNDI and directory services
  • Java security issues (including encryption, authentication, and secure sockets)
  • Comparison of strengths
  • Limitations of Java networking APIs
  • From the Inside Flap:

    Introduction

    By now you've seen all the hype, read all the books, and discovered all the wonders of Java. But most of us still use C++ or C to create our hard-core applications, saving Java for our Web pages or leaving it to HTML jocks to fiddle with. Doing so denies us the opportunity to use a programming language that makes interfacing with a computer infinitely easier, with less frustration and faster results.

    Java is much more than "Dancing Dukes" or a programming language for Web pages. It is a strong alternative to the masochistic programming of the past, in which countless months were spent debugging compared to the mere days it took to code the initial concept. Java allows us to spend more time in the conceptual phase of software design, thinking up new and creative ways to bring the vast knowledge of the Internet and its many users to our desktop.

    Today, our information, and its steady flow, is garnered from the Internet and the millions of fellow computer users around the world. Up until now, you've no doubt designed programs to interface with that knowledge using C or C++. Java will change all of that. In addition to its ability to create adorable and functional user interfaces quickly and easily is Java's ability to easily connect to the Internet. Java is, after all,the Internet Language.What This Book Is All About

    Advanced Java Networking is designed to present you with a myriad of alternatives to connect your applications to the Internet. It is neither a programming reference nor a marketing brochure. We'll leave that to the geeks and marketeers to battle out. Instead, we wanted to explore each alternative without marketing bias or engineering snobbery.

    One part of the engineering community will tell you that sockets are the only true way to communicate information over a network. Another segment will say that Java-only applications relying on Remote Method Invocation (RMI) will solve all your communication problems. Then, of course, there is the Common Object Request Broker Architecture (CORBA) camp. We'll discuss these alternatives, and we will also explore aspects of server-side programming in which we use a Web server as a mechanism to generate dynamic Web pages that can be connected to databases (and just about anything else). We present an honest account of each alternative and guidelines for choosing what's best for your business or programming needs. In addition to the hundreds of lines of sample code we supply to help you start from scratch with Java communication, we place an additional emphasis on migration of your existing desktop-centric applications to an Internet-ready world.Who Should Read This Book

    This book is not for beginning programmers nor is it an introductory Java text. We assume that you have a strong object-oriented programming background, preferably in Java. You should have a strong grasp of such Java fundamentals as how to create a class, how to compile and execute programs on your native system, and how to deploy Java applications. Furthermore, you should understand a good deal of the terminology of the object-oriented world.How to Read This Book

    We've conceived this book in parts, with each part further divided in chapters. Each part addresses one aspect of Internet programming, be it Java Fundamentals; Core Networking such as RMI, CORBA, or Java Database Connectivity (JDBC); Advanced Networking like Beans and Web Servers; general Java Networking information, including a special chapter on Internet security that addresses simple Applet Security restrictions; or more complex subjects such as Directory Services and JNDI. We have also included a short chapter that is an introduction to TCP/IP and how the Internet works. I have found this invaluable as the very first thing that we cover in the Internet Programming course I teach.

    Finally, we want to show you that Java programming is much more than an animation floating by a Web page or interactive Internet content. Java is a language that can hold its own in the world of desktop applications and the examples in the book typically are written as applications rather than as applets. We make no effort to contain our enthusiasm for Java and certainly don't apologize for our delight in working with it. We hope that you will come to love this language as much as we have.Fixes and Updates

    We would also like to take a moment to apologize in advance for any errors. This book has been a total blast to write, and we might have gotten caught up in our own excitement here and there. In any event, we hope you have fun reading about and exploring the Java networked world!

    The CD-ROM that accompanies this book (see "About the CD-ROM," at the back of the book for details regarding the CD-ROM) contains several of the applications that we have developed in this book. Additionally, a special Web page has been created as a front-end to navigating the CD-ROM and for linking to related Web sites. To access that Web page, please load the file named index.html, found in the root directory of the CD-ROM, into your browser.

    To err is human, and the authors of this book are as human as can be. Despite testing every example thoroughly, both from an installation and compilation perspective, problems can occur. If we find a problem with any of the programming examples in this book, we will post a fix as soon as possible on our Web site:

    prenhall/~java_sun

    This online Web supplement can also be linked to from the Web page included on the CD-ROM included with this book.Thanks a Million!

    About the time that Prashant Sridharan wrote the first edition of this book, I started teaching an undergraduate course titled (innocently enough) Internet Programming (CS-328). My personal goals for the course were that it would be Java based and that it would cover TCP/IP, sockets programming, the use of databases, and distributed object programming. In 1997, there were textbooks on networking and textbooks on Java, but there were no textbooks on networking using Java. I found Prashant's book in the trade book section of our local bookstore. Topically, it was almost a perfect fit for the course outline that I had developed. CS-328 began in the fall of 1997, with Prashant's book as its text. The course has been immensely popular and has been offered to a full house of juniors and seniors every semester since.

    Writing the second edition of this book has been a balancing act that has been frustrating at times; rewarding in the support of colleagues, friends, and family; and-to see one's efforts in print-quite satisfying. I had never had the slightest desire to tackle the task of authoring a book, especially a technology-based book. As an adjunct faculty member in the Computer Science Department in the T. J. Watson School of Engineering and Applied Science at Binghamton University (State University of New York) for the last 25 years, I have taught many different programming courses and used texts by many authors, from many sources. I found that, after using the same textbook for several semesters, I would have collected a list of corrections and suggestions for improvements and updates in order to keep the course material current.

    After four semesters (two years—a long time in the life of Java) with the first edition, I decided that the material in the book was getting a little stale. After all, Java had progressed to JDK 1.1.7 and the examples in the book were still JDK 1.0. Many of the predictions made about the course that Java would take had not materialized. The book cried out for a second edition. Like any good instructor, I phoned the publisher and eventually was put in touch with Mark Taub. I asked Mark when the second edition would be out and was told that he wished that he could tell me: Prashant no longer worked for Sun and had taken a new job at Microsoft (now there's a defection for you) and didn't have the time required for a second edition. Mark then did something I never expected and asked innocently, "You seem to know what the book needs and you've been using it for quite a while, would you be interested in tackling the second edition?"

    After much soul searching and discussion with my wife and my associates in academia, Les Lander, Margaret Iwobi, and Eileene Head, I called Mark back. I told Mark that despite my doubts, my associates thought that it would be a good opportunity for growth (and what else did I have to do with my time?). Conveniently, they seemed to forget that I work fulltime as an Advisory Programmer at Lockheed Martin Federal Systems, Owego, New York, where I am also the site Webmaster.

    It has been a busy 10 months since my first contact with Mark. I've really had fun doing this and am really grateful to Mark and Prentice Hall for giving me the opportunity to investigate and write about Java Networking (one of my favorite topics). I'm grateful, too, for the help Anne Trowbridge of Prentice Hall gave me with the CD-ROM that accompanies the book.

    There are a number of people that I must credit for their help with getting this book to market. First and foremost is my wife, Bobbie, to whom I have been married for 32 years. She has patiently supported me through more projects than I care to count.

    I owe special thanks to associates at Lockheed Martin: first to my manager MaryLou Marcotte for letting me divvy up last year's vacation in the strange way that I did to complete the writing. MaryLou, It's hard adjusting to a normal schedule again.

    Scott Rush, our site electronic security guru helped me with the chapter on Java security.

    My very special thanks go to Noah Ternullo. Noah is both a work associate and one our graduate students at the university. CS-328 is an undergraduate course; however, because it is an Internet-based course, it attracts a lot of graduate students. Graduate students wanting to take CS-328 must register for Independent Study, successfully complete the course, and do an additional research project in a mutually agreed upon topic in Java networking. They present their project (along with a paper) to the class at the end of the semester. At the time Noah was a graduate student in my class, Sun had just announced JINI, and he decided that that was what he wanted to research. The night that Noah did the class presentation, he and a friend dragged three PCs into the classroom from their cars and set everything up. One machine was running Linux; another, NT; and the third, W95. The presentation was not only a great demonstration of Java portability, but a really good demonstration of JINI. I was so impressed that I invited Noah to write the chapter on JINI. I hope that his contribution to this text will help him fulfill his dreams for entering a doctoral program.

    Special thanks also go to my course assistant for CS-328, Edwin Chiu. Edwin has been with me through five semesters and has now earned his bachelor's degree and is currently applying to graduate schools. Edwin tackled the conversion of the Internet Appointment Calendar from Joe to the Visibroker Orb.

    Additional thanks go to Peter DeAngelis of Lockheed Martin for coming to our aid when it looked like Visibroker had gotten the best of us and to Elaine Murray for her review of the general information part of the CORBA chapter.

    Last, but not least I owe a real debt to the production team from BooksCraft: Don MacLaren, Bill Hartman, and Sara Black. Without Don gently reminding me of production schedules we wouldn't be at this point.

    Finally, let us not forget Prashant Sridharan. I owe Prashant the greatest thanks both for writing an excellent first edition and then for changing jobs so that I could write the second edition. Much of what Prashant wrote in the first edition is still included, still applicable.

    We, Prashant and I, both had a lot of fun bringing this book to you. We hope that you'll find it as useful as we found it fun.

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