Where to put named queries in JPA?

Please check below link

How to configure multiThread MDB in websphere

The maximum sessions property determines how many messages an MDB can process simultaneously. The default value for this property is 1, which means that an MDB must finish processing the first message on the queue before it can process the second, and so on (for you programmers, this essentially means that an MDB is single-threaded).

If the application server is not under a heavy load, you might want to increase the throughput of messages. In this situation, you can increase the value of the maximum sessions property to enable an MDB to process more than one message at once (this makes the MDB multi-threaded). It is worth noting, though, that increasing the value of maximum sessions will increase the load on your system, since you will now have multiple instances of the MDB running at the same time!

Details please check below link

Spring reference card

http://refcardz.dzone.com/refcardz/spring-configuration?oid=sb001

Design Pattern for Java resources

http://www.dzone.com/links/r/design_patterns_object_oriented_design_repository.html

Why project failed

Below it is a very interesting article

1. Reduce co-location makes communication difficult.
2. Loss of key players will take months to recovery.
3. new technology learning curve.
4. New team need to time to build.

HTML 5 Magic

Today I did some research regaridng HTML5, it is really impressive. I have the feeling HTML 5 will be the next wave on web. Below are some features:

1. SVG
2. VIDEO
3. GEOLOCATION
4. Cache and Database
5. Web wroker

Why Software Is Eating The World

Today I read a article which is very useful to inspire the developers.

Please check the link.