Bobo is a Faceted Search implementation written purely in Java, an extension of Apache Lucene
'com.browseengine.bobo:bobo-browse:3.0.1'
<dependency>
<groupId>com.browseengine.bobo</groupId>
<artifactId>bobo-browse</artifactId>
<version>3.0.1</version>
</dependency>
<dependency org="com.browseengine.bobo" name="bobo-browse" rev="3.0.1"/>
"com.browseengine.bobo", "bobo-browse", "3.0.1"