Bill Burke

This article is part one of a two-part series on the new Enterprise JavaBeans (EJB) 3.0 specification. Prior knowledge of J2EE/EJB will enable a better reading experience. Part 1 focuses on the basic programming model of EJB 3.0. Part 2 will focus on more advanced features like dependency injection and complex persistence mappings (entity inheritance and multitable mappings). Over the past 15 years, each revision of middleware specifications like DCE, CORBA, and J2EE evolved into a larger, more complex definition of new functionality and bloatware. Rarely has a standards-based specification stepped back and actually tried to make development easier for its user base. Until now that is. The mandate of the EJB 3.0 expert group to focus on ease of use and simplification is a... (more)

It's the Aspects

Aspect-oriented programming (AOP) is a promising new paradigm that came out of Xerox PARC a few years ago and is just now becoming mature and mainstream. A natural complement to object-oriented programming, it has the promise of easing the management of complex systems and making their organization much more intuitive, extendable, and flexible. AOP makes OOP multidimensional. What is an A... (more)

EJB 3.0 Preview

Last month's article on EJB 3.0 (Vol. 9, issue 11) focused primarily on the basic features of the specification. Part 2 dives much deeper into the specification to talk about more advanced features like dependency injection, dependent objects, secondary tables, and inheritance. Dependency Injection Dependency injection is the opposite of jndiContext.lookup(). The idea of dependency inject... (more)