Wicket is a lightweight, component-oriented framework that does much to bring the easy, intuitive interfaces found in desktop applications to Java Web development. In this series Nathan Hamblen (of databinder and coderspiel blog ) introduces key aspects of Wicket that differentiate it from other Web application frameworks This first ( of 3 ) article investigates Wicket's virtual state, demonstrating the many ways Wicket accommodates both stateless and stateful Web application development.
Disco is an oss implementation of the Map-Reduce framework for distributed computing. Disco supports parallel computations over large data sets on unreliable cluster of computers. The Disco core is written in Erlang. Users of Disco typically write jobs in Python, which makes it possible to express even complex algorithms or data processing tasks often only in tens of lines of code. This means that you can quickly write scripts to process massive amounts of data. Disco was started at Nokia Research Center as a lightweight framework for rapid scripting of distributed data processing tasks. This far Disco has been succesfully used, for instance, in parsing and reformatting data, data clustering, probabilistic modelling, data mining, full-text indexing, and log analysis with hundreds of gigabytes of real-world data. Linux is the only supported platform but you can run Disco in the Amazon's Elastic Computing Cloud.