The good news about the Composite pattern is that there is only one really common mistake people make when they implement it; the bad news...

The good news about the Composite pattern is that there is only one really common mistake people make when they implement it; the bad news is that they make this mistake a lot.Design patterns in Ruby

The good news about the Composite pattern is that there is only one really common mistake people make when they implement it; the bad news is that they make this mistake a lot.

Design patterns in Ruby