Aug 09
Jim Weirich talked about the experiences that various people have had in the Ruby world, at migrating the popular IoC craze that started in Java-land via Spring/Pico/HiveMind.
It has been interesting to see Ruby frameworks such as Needle and co. jump into Ruby, to have a lot of people ponder if it REALLY makes sense.
I think the heart of it comes from his comparison:
Java Classes are “Hard”
- Not Objects
- (mostly) Source Code Constructs
- Unchangable at Runtime
- Class name directly identifies the class.
Ruby Classes are “Soft”
- Just Objects
- Runtime live
- Changable at Runtime
- Class name is just a label pasted on an object
… and that in general factories aren’t a pain in Ruby, and classes are open so you can sneak in and add mock behaviour whenever you want… ON that class/object.
