Devoxx 2010

Only one day at devoxx 2010 because I'm in between clients. Two days at the new client, one day devoxx and two days at the old client, a nice compromise.

My feelings of the first conference day were:
Keynotes
JavaSE7 will be released mid 2011 and does not include that much (since 6 is from december 2006 ...), the most interesting being project coin and DynamicInvoke. The rest of the features as project lambda and jigsaw will have to wait till 8.
The "State of the web" presentation gave great insights about what the web needs. An app store as the one mozilla is preparing would be nice and HTML5 being a real standard instead of a grouping of features which is different for every browser.

JPA2
A lot of new stuff but most of it was already in some form in Hibernate so it just seems to me I will be using less hibernate specific things. The pessimistic locking, I didn't know about and seems to be interesting for the cases where database locking is needed. Something to remember when the need arrises ...

Infinispan
An interesting data grid but I don't seem to be using those. I wonder who does but didn't get an answer on that.

Vaadin
A great Server side RIA based on top of GWT. Because of the number of components, you won't need much else. I would use it if I needed a desktop like app in the browser. Another thing to remember if that use case pops up.

Spring (3.1 and caching)
Two sessions that I can combine. The first one a nice overview of 3.0 (already available) and 3.1 (Spring 2011 - would also be a nice name!). I like the annotations a lot. I depends on what you prefer but having the code and the configuration in one place is very important for me.
The last session was about the cache abstraction that will be available in 3.1. Spring is only a mediator between your application and the actual caching provider and allows you to determine what to cache (with what key) and what to evict. Putting the @Cachable annotation will make you think about what it means to have that cached. Apparently cache misses are something to be feared!