Best of this Week Summary 17 February - 01 March 2009

• A relatively new type of mashups are so called clipping mashups. Instead of building a mashup against some official API, a clipping mashup just parses the final content in the presentation, thus including CSS, Javascript etc. Links can be rewritten, new elements injected. The presentation doesn't have to follow for example portal JSR-168 standards.
  An example use case would be that you could use it to (temporarily) fix a bug in a system (not necessarily owned by you) until the official next release comes out.
  


• Eight architectural styles described. Handy overview including which one could be when appropriate.
  


• Summary of migration project from JDBC to Hibernate. Valid comment at the bottom is that iBatis might be a better solution when you have to work from an existing schema.
  


• Additional tips and articles for the Wicket in Action book. For example this article on how to do a partial Ajax repaint of newly created repeater items (e.g adding 1 row dynamically to a table or list with a "+" button). This in contrast to rendering all rows in a table when repainting the WebMarkupContainer as in the example described here.
  


• Nice step-by-step introduction to asynchronous processing in Java 5 using Futures, ExecutorServices, CompletionService, Callback interfaces and ThreadPools. Here's part 2 where it's being used in combination with Javascript to improve the user experience.