EclipseWork is a powerful code generation plugin for Eclipse. You can easily generate code using POJO's or Tables from the database.
EclipseWork takes care of all the complexity in creating Eclipse Wizards. You don't need to be an Eclipse developer to write powerful wizards. Enjoy!
HiberObjects is an Eclipse plugin for object oriented design of classes and unit tests for Java Persistence API or Hibernate. PropertyChange support and DTO's for Google Web Toolkit (GWT) can also be generated.