Ronnies Thoughts
Value Observing of Properties
In a lot of framework we have the concept of key-value observing (I have exluded the term "key" from this concept in the title as Properties are modelled explicitly in Qi4J), this seems to be missing in Qi4J. The main reason seems to be out of concerns for performance (correct me if I´m wrong).. For rich client type applications its invaluable to have such a feature.