Alan K Wong

Dear David,
Thanks for writing a book on J2EE development on the Glassfish server. As far as I'm aware, your book, Sun's J2EE 5 tutorial, and _EJB 3 in Action_ are the only books that explicitly discuss application development on the Glassfish server.

A few questions:
1) Who is your intended audience? A J2EE novice? A J2EE 1.4 developer who wants to know how to transition to J2EE 5? A newcomer to Glassfish?

2) Do you spend much time discussing the architecture of the Glassfish server? For instance, JBoss AS has a modular architecture, which looks like a sound idea. It's great to use if you want to customize your AS, but you have to be willing to pay a department of deployers who know what they're doing in JBoss.

For myself, I develop J2EE applications in the finance industry. We have been revisiting our choice of application servers, and Glassfish is a candidate. Do you offer objective reasons to switch to Glassfish? Or refrain from switching?

Regards,
Alan