Databeans by Roberto Zicari · Published January 1, 2009 · Updated February 16, 2014 Databeans is a fully object oriented persistence framework for java, based on the use of javabeans accessor methods to read/write data on disk in place of in class instance fields, available under GPL. LINK
InterSystems (Globals) January 1, 2012 by Roberto Zicari · Published January 1, 2012 · Last modified February 16, 2014
db4o as Storage Provider in Voldemort September 1, 2010 by Roberto Zicari · Published September 1, 2010 · Last modified February 16, 2014
Memcached January 1, 2011 by Roberto Zicari · Published January 1, 2011 · Last modified February 16, 2014