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This book is about Enterprise JavaBeans 1.1 and 2.0 the second and third versions of the Enterprise JavaBeans
specification. Just as the Java platform has revolutionized the way we think about software development, Enterprise
JavaBeans has revolutionized the way we think about developing mission-critical enterprise software. It combines
server-side components with distributed object technologies and asynchronous messaging to greatly simplify the
task of application development. It automatically takes into account many of the requirements of business systems:
security, resource pooling, persistence, concurrency, and transactional integrity.
This book shows you how to use Enterprise JavaBeans to develop scalable, portable business systems. But before
we can start talking about EJB itself, we’ll need a brief introduction to the technologies addressed by EJB, such as
component models, distributed objects, component transaction monitors (CTMs), and asynchronous messaging. It’s
particularly important to have a basic understanding of component transaction monitors, the technology that lies
beneath EJB. In Chapters 2 and 3, we’ll start looking at EJB itself and see how enterprise beans are put together. The
rest of this book is devoted to developing enterprise beans for an imaginary business and dis cussing advanced
issues.
It is assumed that you’re already familiar with Java; if you’re not, Exploring Java™ by Patrick Niemeyer and Josh
Peck is an excellent introduction. This book also assumes that you’re conversant in the JDBC API, or at least SQL. If
you’re not familiar with JDBC, see Database Programming with JDBC™ and Java™, 2nd Edition, by George Reese.
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Managing Now
Information technology is a familiar aspect of our lives. We use computers,
e-mail, software, cell phones, iPods, fax machines, flash drives, scanners, and
BlackBerry®-type devices every day. We search for travel information on Expedia,
download airline tickets from AA.com, and register for and take college courses
online.... | | | | Electronic Circuits - Fundamentals & Applications, Third Edition
Electronic Circuits is a unique combination of a comprehensive reference text and a practical electronics handbook in one volume.
Mike Tooley provides all the essential information required to get to grips with the fundamentals of electronics, detailing the underpinning knowledge... |
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