Mardao is a java DAO generator packaged as a maven-plugin. Uses your JPA-annotated Entities as input.
'net.sf.mardao:mardao-gae:2.2.2'
<dependency>
<groupId>net.sf.mardao</groupId>
<artifactId>mardao-gae</artifactId>
<version>2.2.2</version>
</dependency>
<dependency org="net.sf.mardao" name="mardao-gae" rev="2.2.2"/>
"net.sf.mardao", "mardao-gae", "2.2.2"