Activiti is an open source BPM and workflow system. The first GA release is expected to be out next month i.e. Dec 2010. The roadmap of activiti looks very promising and also involvement of companies like SpringSource and MuleSoft can make it even more interesting. There are couple of good articles and tutorials available on the wiki to help you get started with activiti. To get a feel of the framework, instead of developing a simple hello world app, I thought of integrating activiti with Spring Integration. SpringSource team is working on this integration module and once that is in place some of the boilerplate code from my prototype would be cleaned up. The following blog post demonstrates the use of spring integration mail module with activiti.
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Enterprise Search is becoming one of the common requirements of any consumer web application that we build these days. So I thought of learning some stuff in this domain. If you think about open source frameworks providing enterprise search functionality, probably Lucene is the one and only answer that comes to your mind. Lucene is a fully featured full text search engine library. Some other platforms and frameworks are developed that leverages core search functionality of Lucene.
Solr is one of such platforms that provide cool features like token highlighting, faceted search and many many more. Solr runs as a standalone search server and can be integrated into the applications using HTTP/XML API. Solr is typically used (or suggested to be used) when the underlying data that you are trying to index doesn’t change often.
Hibernate Search is a framework built on top of Lucene and Hibernate Core. In the following blog post, I would explain how to integrate Hibernate Search into your application.
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Apache Wicket is yet another Java Web Development framework. But the beauty of Wicket is it provides clear separation of concerns. It doesn’t mix markup and java and saves you from adapting to additional expression language. Wicket templates are simple HTML files with only additional wicket attribute wicket:id. This makes it easy for the Java developers to work on the prototypes created by web designers. If you know core Java, its absolutely no problem adapting to Wicket programming model. Wicket comes with a nice quickstart guide and plenty of examples for using different components.
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