Yesterday morning I presented a 2-part session at The Spring Experience entitled "Enterprise Integration Patterns with Spring". The first presentation included an overview of core Spring support for enterprise integration – including JMS, remoting, JMX, scheduling, and email. That presentation also included a high-level discussion of several of the Enterprise Integration Patterns introduced in the Read more…

Last night I attended a New England Java User Group (NEJUG) meeting where Reza Rahman presented a "comparative analysis" of EJB 3 and Spring. Reza is one of the authors of EJB 3 in Action. I enjoyed meeting Reza and respect him for presenting what may be considered a controversial topic. Also I appreciate that Read more…

NOTE: This post has been updated as of May 31, 2007 to reflect the state of the 2.1-M2 official release Two weeks ago I blogged about the new annotation-driven dependency injection capabilities of Spring 2.1, and I mentioned that I would follow-up with more info "later in the week". It turns out that was a Read more…

Spring 2.0 introduced annotation support and annotation-aware configuration options that can be leveraged by Spring users who are developing with Java 5 (or later versions): @Transactional for demarcating and configuring transaction definitions @Aspect (AspectJ) for defining aspects along with @Pointcut definitions and advice (@Before, @After, @Around) @Repository for indicating a class that is operating as Read more…

Several months ago, I posted a blog entry introducing Spring 2.0's support for Message Driven POJOs. While many people are now familiar with that feature, Spring 2.0's JMS remoting features have received less attention. Essentially, this remoting functionality provides a JMS-based version of Spring's general approach to remoting as exhibited in its support for RMI, Read more…

Spring 2.0.1 introduced an AbstractRoutingDataSource. I believe that it deserves attention, since (based on frequent questions from clients) I have a hunch that there are quite a few 'home-grown' solutions to this problem floating around. That combined with the fact that it is trivial to implement yet easy to overlook, and now I have several Read more…

I am very excited to announce that the Spring SIG within the New England Java Users Group will be having our first meeting this Thursday (September 28th, 2006). Ramnivas Laddad (author of AspectJ in Action and Interface21 Principal) will be presenting "AspectJ for Spring Developers". This will be a great chance to learn about the Read more…

Of all the new Spring 2.0 features and improvements, I must admit that Message-Driven POJOs are one of my personal favorites. I have a feeling that a lot of other Spring users will feel the same way. Here I am providing a quick introduction. There is a lot more to show, and I will follow Read more…

Yesterday there were a few posts related to the forthcoming Beginning Spring 2 book, and I wanted to point those out here. First, since this book will be of interest to those new to Spring – or even those who are simply curious at this point, we decided that it would be a good idea Read more…

The motivation behind this blog entry is to provide a simple step-by-step guide for getting started with JPA in a standalone environment with the Spring Framework. While the JPA specification originated as the persistence mechanism for EJB 3.0, it was fortunately recognized that any such mechanism should in fact be able to persist simple POJOs. Read more…