See http://blog.javaforge.net/post/30577502737/mybatis-generator-plugins for further details.
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Maven users please add following repository and dependency declarations to your POM-File:
<repositories>
<repository>
<id>googlecode</id>
<url>http://docbook4j.googlecode.com/svn/m2-repo/releases/</url>
</repository>
</repositories>
<dependency>
<groupId>net.javaforge.mybatis.generator</groupId>
<artifactId>mybatis-generator-plugins</artifactId>
<version>1.0.0</version>
</dependency>