Cascade Technology Group (or CascadeTG) was the name I used for my consulting company from roughly 1999 through 2004. During that period, I wrote four books on software development.
The books are all terribly out of date, and are mainly interesting as historical artifacts. They included Mac OS X for Java Geeks, Real World Web Services, Hibernate, and Jakarta Commons.
The book on Hibernate included pointers to JDBC drivers shims and some associated tools. The tools are no longer available, and have since been replaced by more modern solutions. More generally, as of this writing I would recommend a simple strategy of using Spring Data and/or MyBatis instead of complex Hibernate mappings. Here is a video from 2012 in which I explain my thinking.