This tool allows to generate a graphical representation of an EMF model (using GraphViz utility http://www.graphviz.org/). It may be considered as a lightweight readonly GMF alternative.
This project is a maven plugin for Apache Lucene. Using it, a Lucene index (configuration inside a xml file) can be created from different datasources ( file/database/xml etc.). A Searcher Util helps in searching the index. Use Lucene without coding.