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Java Message Service (Englisch) Taschenbuch – 16. Juni 2009
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Über den Autor und weitere Mitwirkende
Mark Richards, Director and Sr. Technical Architect at Collaborative Consulting, LLC, is a leading authority on messaging, transaction management, systems integration, and Service Oriented Architecture. He is the author of "Java Transaction Design Strategies", contributing author of "97 Things Every Software Architect Should Know", "NFJS Anthology Volume 1", "NFJS Anthology Volume 2", and the author of numerous transaction, JMS, and SOA-related articles. Mark is a regular conference speaker on the No Fluff Just Stuff conference tour and has spoken at other conferences around the world, including QCon, TSSJS, and SYS-CON.
Richard Monson-Haefel is the author of Enterprise JavaBeans (Editions 1 - 5), Java Message Service and one of the world's leading experts and book authors on enterprise computing. He was the lead architect of OpenEJB, an open source EJB container used in Apache Geronimo, a member of the JCP Executive Committee, member of JCP EJB expert groups, and an industry analyst for Burton Group researching enterprise computing, open source, and Rich Internet Application (RIA) development. Today, Richard is the VP of Developer Relations for Curl, Inc. a RIA platform used in enterprise computing. You can learn more about Richard at his web site Monson-Haefel.
David A. Chappell is vice president and chief technologist for SOA at Oracle Corporation. Chappell has over 20 years of experience in the software industry covering a broad range of roles including Architecture, code-slinging, sales, support and marketing. He is well known worldwide for his writings and public lectures on the subjects of Service Oriented Architecture (SOA), the enterprise service bus (ESB), message oriented middleware (MOM), enterprise integration, and is a co-author of many advanced Web Services standards.
As author of the O'Reilly Enterprise Service Bus book, Dave has had tremendous impact on redefining the shape and definition of SOA infrastructure. He has extensive experience in distributed computing infrastructure, including ESB, SOA Governance, EJB and Web application server infrastructure, JMS and MOM, EAI, CORBA, and COM. Chappell's experience also includes development of client/server infrastructure, graphical user interfaces and language interpreters.
Chappell is also well noted for authoring Java Web Services (O'Reilly), Professional ebXML Foundations (Wrox) and Java Message Service (O'Reilly). In addition, he has written numerous articles in leading industry publications, such as Business Integration Journal, Enterprise Architect, Java Developers Journal, JavaPro, Web Services Journal, XML Journal and Network World.
Chappell and his works have received many industry awards including the "Java Technology Achievement Award" from JavaPro magazine for "Outstanding Individual Contribution to the Java Community" in 2002, and the 2005 CRN Magazine "Top 10 IT leaders" award for "casting larger-than-life shadow over the industry".
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The one important topic, which is not clearly explained, is synchronous vs asynchronous. It seems that the authors call "asynchronous" every application if it has more than one thread. By carefully reading this book it is possible (though hard) to understand why messaging is asynchronous. It is because the process consists of two steps: sender->server and server->receiver, and the first step does not wait for the second one to complete. However, each one of those steps is synchronous by itself, because they wait for conformation.
This was a sort of indicator for me, because from other books I could not figure it out. So I recommend this book, and even give it 5 stars, because this book is probably the best (or least bad ) of all available books about JMS.
This book was published in 2009 when the standards for writing computer books were much higher than in the previous decade when the Windows and Linux specific references on messaging services were detailed. So you will have a much smoother introduction with this book than for the others.
My recommendation is that you use the Java Message Service unless performance is a high priority. Java is well known to be ten or more times slower than the C++ engines in the Windows and Linux specific messaging services.6
In my case I needed to exceed 5 million data blocks per minute so I opted for the C++ versions. However, I spent months of time building and testing code from the snippets in the other reference books while trying to reverse engineer them into a complete understanding of the process. It seems that using services has become a lost art. I wish the other references had the smooth introduction of this book. It could have saved me weeks of valuable time.
A lot of the problem is ActiveMQ - an open source Java project ( [...] ). The documentation for ActiveMQ is scattered all over their website, and the configuration appears to have countless options to choose from.
The book and sample code all seemed a bit rushed. The sample code included a number of hidden MAC OS/X files, probably there by accident.
But there is not a lot of material about either JMS or ActiveMQ, so if you really need to get going with these, this book may be your only option. And as a book about the the theory of messaging system, it is not bad.