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Greetings...
This week's ONJava continues with advanced forays into the
realms of attributes and aspect-oriented programming. These
are fundamentally new ways to think about programming, and by
running multiple articles on both, we hope to get beyond the
typical "hello world" kind of introductory material to topics
where you can really achieve something new.
Russ Miles continues his series on AOP and Spring, which started
off with what he calls "the hello worlds of aspect-orientation:
tracing and logging." In An Introduction to Aspect-Oriented
Programming with the Spring Framework, Part 2, Russ shows "how
'around' advice can be used to intercept and change the way
that features within your applications are interacted with, in
order to implement the Cuckoo's Egg aspect-oriented design pattern."
http://www.onjava.com/pub/a/onjava/2004/10/20/springaop2.html
Eugene Kuleshov has returned to cover the ASM Bytecode Toolkit,
applying it to the metadata feature introduced in J2SE 5.0.
In Create and Read J2SE 5.0 Annotations with the ASM Bytecode
Toolkit, he shows how annotations are represented in Java bytecode
and how the ASM bytecode-manipulation toolkit can work with
them, even in pre-5.0 JVMs, noting that the article's code
"allows you to read annotation data that is not available
through the Java 5 reflection API."
http://www.onjava.com/pub/a/onjava/2004/10/20/asm.html
Threading is much improved in J2SE 5.0, with the old wait()
and notify() augmented by a whole new package of tools for
coordinating threads. In Advanced Synchronization in Java
Threads, Part 1, an excerpt from Java Threads, 3rd Edition,
Scott Oaks and Henry Wong introduce the Semaphore, Barrier,
Countdown Latch, Exchanger, and ReaderWriterLock classes
introduced by the new java.util.concurrent package.
http://www.onjava.com/pub/a/onjava/excerpt/jthreads3_ch6/index1.html
In this week's feature article from java.net, The Blacksmith
and the Bookkeeper, Part 3, Max Goff concludes his look at the
future of the programming profession. Considering that today's
Java coder hardly resembles his or her 1960's counterpart, a
plausible progression of events shows less need for custom
application development, especially when purchasing off-the-shelf
components or even letting computers write their own code
(through artificial intelligence, genetic algorithms and the like)
is better and cheaper. The future programmer may have to focus
on those traits that are difficult to automate, meaning that,
as Goff puts it, "today's coder will evolve into something more
like a concierge than an expert system."
http://today.java.net/pub/a/today/2004/10/12/Blacksmith3.html
Please join us again next week.
Chris Adamson, editor
ONJava.com
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