Bobo is a Faceted Search implementation written purely in Java, an extension of Apache Lucene
'com.linkedin.bobo:bobo-contrib:3.1.2'
<dependency>
<groupId>com.linkedin.bobo</groupId>
<artifactId>bobo-contrib</artifactId>
<version>3.1.2</version>
</dependency>
<dependency org="com.linkedin.bobo" name="bobo-contrib" rev="3.1.2"/>
"com.linkedin.bobo", "bobo-contrib", "3.1.2"