gdillen (1) [Avatar] Offline

I read a lot of good reviews about POJOs in Action. As an alternative to C#/(ASP)..NET I'm considering using Java for backend-enterprise applications, mainly with JAX-RX as the service layer. But the underlying pieces: business layer, data access layer still needs to be developed JAX-RX or not. And EJBs seems to be a complex matter.
So I searched the web and found the book POJOs in Action. My question: is this book still relevant (or not)?