Today marks the third milestone release of the Spring Java Configuration project (JavaConfig for short). The release contains numerous bug fixes and new features - I'll highlight a few of the most interesting changes below, but first let me give a quick refresher as to what JavaConfig is all about.
If you have any experience […]

I'm writing this as I'm on my way to Cairo. We're flying just West of Italy and I have clear view on the Italian coast line, with its blue waters and waves gently moving towards shore. It must be nice down there now. I'm heading to Cairo for a meeting of the Egyptian User Group, […]

One of the central themes behind Spring 2.5 is comprehensive annotation-based configuration. We've been talking and blogging a lot about @Autowired, about Spring MVC's @RequestMapping and also about the new support for annotated tests written with JUnit4 or TestNG. @Autowired is certainly the central one of Spring 2.5's annotations, being available for use in service […]

Several users have asked whether we are committed to Spring Java Configuration, and how it sits with the annotation configuration option introduced in Spring 2.5. The answer is yes, we are committed to Java Config; and these two approaches are not mutually exclusive.
These two configuration approaches are quite different: the @Autowired annotation in the Spring […]

A couple of month ago, we start publishing polls on www.springframework.org asking people to provide their feedback about Spring, some of its features and how they are using those features. The first question I posted was whether or not people were checking required dependencies and if so, what mechanisms they used. I quickly followed up […]

Last week at SpringOne, Alef and I gave a talk on dealing with complex applications using Spring. Complexity in this case was considered both at the structural and dynamic level. As for the structural part of the talk, I covered that one in my previous blog posting. The dynamic part explained some possible solutions to […]

Yesterday, Joris and I gave a session at the Dutch Java Users Group. We did the session twice and had about 250 people in total attending the sessions. A lot of people asked for the code for the demos we did during the sessions. Attached you'll find the code for the AOP and Dependency Injection […]

Last month I gave a Core Spring training in Turkey. At the end of the course I discussed the architecture for an application that some of the participants were going to build after completing the course. This application would consist of an ear file with several war files inside, and the question came up if […]

I was working on Spring 2.1 stuff this week with Joris. We were preparing a sample using all three ways of doing dependency injection. The sample does not only highlight dependency injection, but also features a back-end based on Hibernate.
Several features in Spring 2.1 require the ASM byte code manipulation framework. Hibernate also uses ASM, […]

As most of you already know by now, Spring is not just about XML as lately, a number of 'official' extensions to the core offer alternatives way for configuring the container.
Spring Java Configuration 1.0 M2 was among the products released around JavaOne and, while still marked as a milestone, had an important number of updates […]