Trying to use your pre-existing knowledge on Java's persistence API with the newer Grails framework based on Groovy ? This post by Carol McDonald takes you through the process using NetBeans, the Glassfish application server and MySQL. Read Carol McDonald's post on 'Combining Groovy, Grails, MySQL, and the Java Persistence API' http://blogs.sun.com/enterprisetechtips/entry/combining_groovy_grails_mysql_and