In Also in Java Today, the O'Reilly Network Databases site points out an article-like weblog entry that may be of use if you're using and maintaining an Oracle database for your J2EE system. In 10G Segment Advisor, Chris Foot writes: "The 10G segment advisor identifies segments that have become fragmented as a result of update and delete operations. Oracle describes these objects as being sparsely populated. Not only do sparsely populated objects waste space but they can also contribute to SQL performance problems. This blog will show you how to use the 10G segment advisor to identify sparsely populated segments. In my next blog, we'll discuss the different alternatives we can use to reclaim the wasted space."

"While Struts and many other Model View Controller (MVC) frameworks from the early 2000s are largely operation-centric and stateless, the frameworks emerging most strongly are component-based and event-driven. The leading contenders in this space are the new "standard", JavaServer Faces (JSF), and Struts' cousin from the Apache Jakarta project, Tapestry." In JavaServer Faces vs. Tapestry: A Head-to-Head Comparison, Phil Zoio puts these frameworks head-to-head, comparing each on its merits: "we rate the two on critical aspects of their design, development and runtime environments."