Acknowledgments

Sameer Tyagi

I would like to express my appreciation and gratitude to my parents and family for their love and continuing support, without which none of this would have been possible in the first place.

Keiron McCammon

I would like to acknowledge my co-workers who helped in reviewing my early drafts, Sven Erik Knop, Gerhard Klein, Martin Wessel, Per Bergman, Nelson Chin and Patrick Guiltot. Thank you to Ken Egervari and David Jencks for your reviews and thank you to Floyd Marinescu of theServerSide.com for hosting the book chapters for public review and thank you to all theServerSide.com members who contributed their feedback. Most importantly, thank you to my wife, Kerry, for supporting me in everything I do.

Michael Vorburger

Michael most importantly wishes to thank his wife Divvya, for her love, support and inspiration. He dedicates this book to their son Dév Raj-Joe, who was born shortly before these pages went to press. He also wishes to thank his parents, Hannah and Joseph, for making him who he is. Finally he is also very grateful to Geeta Rajagopalan for all her help.

Heiko Bobzin

My appreciation goes to Dirk Bartels, Andreas Renner, Michael Damkier, and the Java team at Poet. Dirk Bartels, co-founder and former president, encouraged me to join the Java Data Objects Group in 1999 and to write this book. Andreas and Michael spent many hours working with me on JDO concepts and e-mails. Finally, thanks to my wife for her patience and support.