In Spring 3.0, Spring MVC will be augmented with REST support. This post describes how to use the REST support to implement an AtomView on top of a simple sample application. Follow this step-by-step process to see how easy it is to implement an AtomView on top of a simple application with the new REST support in Spring MVC. Next, load up the project in Eclipse, using the 'Import > Import Existing Projects into Workspace' wizard (from the File menu). The application is a simple Eclipse Dynamic Web Project with all the infrastructure for Spring MVC setup. So if you are familiar to Spring MVC…

Due to the extensive travel schedule of yours truly, we haven't had a meet up since last September. It's been almost half a year, so it's about time for another one. But, before we move on, I'd like to make point out a new Google Group that we have set up, to keep you posted about this. I received a lot of requests to set up a mailing list over the past few years, so from now on, the main place to keep an eye on, for new Java Meetup dates, is the Java Meetup Google Group. Sign up there to get the dates delivered right to your inbox. Okay, on to the details for the next meetup: From Central…

Now that the holiday season (at in the Netherlands that is) has almost ended, I thought it would be time for another Amsterdam Java Meetup. So, we reserved the good-old Jaren in the Nieuwe Doelenstraat again, for having a few (paid-for) drinks with fellow Java developers and everybody else that wants to join in. We're doing this in the same week as the Core AOP course, held in Amsterdam, which is quite convenient for me, since now I'm sure I will be in town as opposed to some of the other meetups where I couldn't be present myself. Again, the location is the same as last time. As usual…

Three weeks ago, the SpringSource Tool Suite was released. Christian, in charge of this product blogged about it already and we also have a webinar available for those of you that want to get up to speed with all of the functionality it currently offers. In this entry, I wanted to highlight the runtime error reporting functionality specifically. When I'm programming, sometimes, the console window shows dozens of stack traces due to some error I've caused. Sometimes, I'm lucky and the stack trace looks familiar. If so, then the problem is probably easy to solve. Sometimes however, the…

It's been a while... for the Amsterdam Java Meetup that is. I've been traveling a lot and haven't been able to organize another meetup past quarter. But here we go again: the (almost) quarterly Amsterdam Java Meetup with free drinks (or at least, the first few rounds) will be hosted in grand-cafe de Jaren in Amsterdam (see below for more info on the location) on the 23rd of May. You can expect many Java devs (usually between 50 and 80 people turn up), technical as well as non-technical discussions and of course, the latest gossip in the Dutch Java industry. We'd love to hear from people from…

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, organized by Ahmed Hashim, who no doubt will have done an excellent job, I'm sure of that. I'll be presenting on Spring with the theme this time being Dependency Injection, type safety and Java 5. Yesterday (March 14th that is), I did almost the same presentation at the Profict Wintercamp in Loenen, NL for an audience…

At The Spring Experience, I hosted a session various aspects. One of them was the Hibernate synchronization aspect that I described last week. Another was an aspect capable of capturing first failures and system state, sometimes called First-Failure Data Capture (FFDC). I hosted this session to show off some aspects that are very useful, but that people might not have come across in practice yet. I often hear people asking about aspects other than logging, tracing, transaction management and security. The Hibernate synchronization aspect and the FFDC aspect are nice examples I think. Let's set…

Mixing code in one and the same transaction that uses an Object-Relational Mapper with code that doesn't, can cause issues with data not being available in the underlying database when it should be. Since this is a situation I come across once every now and then, I figured it would be helpful for all if I write down my solution to this problem. In short: what I will present in the remainder of this post is an aspect that triggers the underlying persistence mechanism (JPA, Hibernate, TopLink) to send any dirty data to the database. I presented this aspect by the way during one of my sessions at…

It's time for the next Java Meetup again. I decided to postpone the 7th installment of this quarterly event in Amsterdam until right after summer, because most people here in The Netherlands take a couple of weeks off in August or so. I've looked at our internal schedules and it seems September 21st is the only day left in September, so I hope it fits with other people's schedules as well. We'll be doing it at the same location as last April's meetup, as this is pretty convenient for us and everybody seems to be fine with it. The first Java Meetup ever was held in my favorite Amsterdam hangout…

In a recent blog entry Marc Logemann touches on the subject of proxy performance. In his entry he asks for a white paper by 'the Spring guys'. I don't want to spend (p)ages and (p)ages on discussing the differences up to the nanosecond between proxies and byte code weaving mechanisms, but I do think it's valuable to re-iterate once again what the differences are and whether or not this discussion matters at all. In other words, proxies can be used as stand-ins for real objects to apply extra behavior to those objects--be it security-related behavior, caching or maybe performance measurements…