GridGain is a computational grid framework. Its goal is to improve general performance of processing intensive applications by splitting and parallelizing the workload. In many cases GridGain is used to achieve better overall throughput, better scalability or availability of services.
Following picture illustrates the basic idea behind processing grids:
From the authors of the German book "JSF@work" (see http://jsfatwork.irian.at). A lightweight framework for J2EE web applications which makes a clean step out of session handling problems when using persistence frameworks. Also features like aspect oriented JSF are introduced. All provided by a best-practice web application.
Compass is a first class open source Java Search Engine Framework, enabling the power of Search Engine semantics to your application stack decoratively. Built on top of the amazing Lucene Search Engine, Compass integrates seamlessly to popular development frameworks like Hibernate and Spring. It provides search capability to your application data model and synchronizes changes with the datasource. With Compass: write less code, find data quicker.