Thursday, May 04, 2006
Subverting the Enterprise
O'REILLY NETWORK'S ONJava.com NEWSLETTER
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Greetings...
One thing I really enjoy in articles is the idea of combining pieces in
surprising ways. In the Java community, we benefit from a massive library
of built-in and standard-extension functionality, with an even larger
universe of open source and commercial code that we can then tie into.
For my money, the first step of many development processes should be to
Google to see if someone's already done what you need to do, or close
enough. Connect the dots, do stuff faster.
Consider the requirement to manage not only objects and documents, but
also their history, perhaps tracking not just the deltas, but the time,
date, user, and reason for each change. Sure, you could develop your own
tables and logic for this, but doesn't it sound like a problem that's
already been solved? Come to think of it, doesn't it sound like what a
source code repository does? In "Configuration Management in Java EE
Applications Using Subversion," Swaminathan Radhakrishnan suggests letting
Subversion do this work for you, by connecting your Java EE application to
a Subversion repository by way of the JavaSVN library.
<http://www.onjava.com/pub/a/onjava/2006/05/03/j2ee-configuration-management-with-subversion.html>
If you're a Java ME developer, there's a good chance you've written at
least one game for the platform, and that means you've surely faced the
challenge of creating and presenting engaging sound within the tight
limitations of the mobile phone platform. Peter Drescher offers a number
of novel approaches in the Digital Media article "Could Mobile Game Audio
BE More Annoying?!", which is adapted from his presentation at the recent
Game Developers Conference.
<http://digitalmedia.oreilly.com/2006/04/26/could-mobile-game-audio-be-more-annoying.html>
Real-time Java doesn't mean fast, it means predictable, so much so that
you can count on things. "The WebLogic Real Time server (WLRT) provides a
lightweight infrastructure with low latency for event-driven applications.
It is intended for use in highly competitive environments where
performance is key and therefore every millisecond counts. For example,
certain industries such as telecommunication or insurance require that
transactions be performed with very low latency within given timeframes.
Trying to implement this with standard Java most likely will fail because
of the unpredictable pause times caused by the garbage collection
process." Markus Eisele explores this platform in the dev2dev article "An
Introduction to WebLogic Real Time."
<http://dev2dev.bea.com/pub/a/2006/04/introduction-wlrt.html>
In our feature article from java.net, Tim McCune introduces some much
appreciated and much debated "Exception-Handling Antipatterns." "In this
article, we'll discuss some fundamental concepts about the different types
of Java exceptions and their intended uses. We'll also cover basic logging
concepts, especially as they relate to exception handling. Finally,
instead of prescribing what to do, we'll focus on what not to do, and take
a look at a dozen common exception-handling antipatterns that you are
almost certain to find somewhere in your code base."
<http://today.java.net/pub/a/today/2006/04/06/exception-handling-antipatterns.html>
Recent O'Reilly Network weblogs of interest to Java developers:
Timothy M. O'Brien - New Java Visualization: Prefuse
<http://www.oreillynet.com/onjava/blog/2006/05/new_java_visualization_prefuse.html>
Dejan Bosanac - Spring MVC: Exposing Cookies to the View
<http://www.oreillynet.com/onjava/blog/2006/05/spring_mvc_exposing_cookies_to.html>
Paul Browne - Web 2.0 - Almost Mainstream?
<http://www.oreillynet.com/onjava/blog/2006/04/web_20_almost_mainstream.html>
Norbert Ehreke - Thoughts on Simplicity
<http://www.oreillynet.com/onjava/blog/2006/04/thoughts_on_simplicity.html>
Check out more O'Reilly Network Java weblogs at:
<http://www.oreillynet.com/pub/q/weblog_s?x-subject=3&>
Please join us again next week.
Chris Adamson, Editor
ONJava.com
cadamson@oreilly.com
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