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The First European RailsConf 2006 - September 14-15 – London

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cool and exciting from more than 25 leading web 2.0 experts, including
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http://www.oreilly.com/go/railsconf_orn

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Greetings...

I got a ping on IM this morning about why there are Axis2-oriented
articles this week on both ONJava and java.net (also an O'Reilly site).
Just coincidence, I suppose, but it does speak to the sway that Axis is
developing among the web services community. It's a framework where the
developers had the opportunity to take what they learned in the first
version and start over (hence the prominence of the "2" in the name),
doing some particularly nice things in the do-over, such as the
pull-parser for XML. But this week's ONJava feature article arguably
isn't about Axis2 so much as it uses it to make a much bigger, and more
important point.

"Separation of concerns is a core principle of Service-Oriented
Architectures. Unfortunately, this principle is often lost when it comes
to the implementations of SOA services. All too often we see a big
implementation class with multiple concerns such as security, transaction
management, and logging all mixed in with the business logic." So what's
a developer to do? In "Separation of Concerns in Web Service
Implementations," Tieu Luu advocates using Spring alongside Axis2 to
achieve separation at the implementation level, doing so by bridging to a
security framework that is separate from the business logic.

http://www.onjava.com/pub/a/onjava/2006/09/06/separation-of-concerns-in-web-services.html

Speaking of web services, there's also the question of what you're going
to do with the response you get from a web service. In an article from
XML.com, "Generating RSS with XSLT and Amazon ECS," Craig Noeldner and
Brian Swan opt for an XSLT transformation. "XSLT is a language for
transforming XML into other formats. The XSLT service with Amazon ECS can
transform a REST response using an XSLT file you identify by adding a
parameter that specifies the location of the file and returning the
transformed result. This means that a call to the Amazon ECS web service
can return HTML, text, or any other format you want and make it compelling
to building a rich-client or server-based solution."

http://www.xml.com/pub/a/2006/08/30/generating-rss-with-xslt-and-amazon-ecs.html

This week's feature article from java.net looks at "Current CMS," an open
source content management system hosted on java.net. "The major
components of Current CMS include a scaffolding generator, a simple
persistence mechanism, a layer for user-filtered and logged-database
transactions, template management, a site map formality, as well as JSP
pages and servlet controllers for managing content. The code base was
entirely rewritten earlier this year. I will try to write clearly about it
now. Ready?"

http://today.java.net/pub/a/today/2006/08/15/current-cms.html

Recent O'Reilly Network weblogs of interest to Java developers:

Amir Shevat - Why is Java-enabled hosting so expensive?
http://www.oreillynet.com/onjava/blog/2006/09/why_is_javaenabled_hosting_so.html

Steve Anglin - Take Flex for a Java test drive
http://www.oreillynet.com/onjava/blog/2006/09/take_flex_for_a_java_test_driv.html

Timothy M. O'Brien - Building Archiva from Source: a prerelease test drive
http://www.oreillynet.com/onjava/blog/2006/09/getting_started_with_archiva_m.html

Check out more O'Reilly Network Java weblogs at:
http://www.oreillynet.com/onjava/blog/

Please join us again next week.

Chris Adamson, Editor
ONJava.com
cadamson@oreilly.com

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# posted by giu @ 6:01 PM