You can write clients that stream data in (much like Hadoop streaming), however. If you want to stick with the JVM, have you considered using Scala and the cak

You can write clients that stream data in (much like Hadoop streaming), however. If you want to stick with the JVM, have you considered using Scala and the cake pattern? http://jonasboner.com/2008/10/06/real-world-scala-dependency-injection-di.html http://jonasboner.com/2008/10/06/real-world-scala-dependency... If you want to stick with Java and want to use IoC without the hell that is Spring, I suggest Guice (which consists of a smaller, cleaner core and uses annotations and DSLs in place of XML): http://code.google.com/p/google-guice/ http://code.google.com/p/google-guice/