EZDB is a simple hash/range database. Right now, it just has a LevelDB implementation.
'com.github.criccomini:ezdb-treemap:0.1.9'
<dependency>
<groupId>com.github.criccomini</groupId>
<artifactId>ezdb-treemap</artifactId>
<version>0.1.9</version>
</dependency>
<dependency org="com.github.criccomini" name="ezdb-treemap" rev="0.1.9"/>
"com.github.criccomini", "ezdb-treemap", "0.1.9"