Making Eclipse Plug-ins using JRuby or Groovy

Objects exposing behavior, not state
Controlling complexity of your codebase by limiting what state your objects expose
The more objects that can see and change states on other objects, the more complex your system. Objects returning a boolean mean that someone calling that method will use an if branch, returning an integer would mean someone using if/else [...]

I spend more time reading code than writing it. I therefore like code that is readable. Rarely do I like to read code that is verbose and does too much orchestration in order to do something that is orthognal to what I’m looking for.
Code is easier to read and maintain when objects are written in [...]