In this chapter, we take encapsulation to a whole new level: we’re going to encapsulate method invocation. That’s right; by encapsulating method invocation, we can crystallize pieces of computation so that the object invoking the computation doesn’t need to worry about how to do things, it just uses our crystallized method to get it done. We can also do some wickedly smart things with these encapsulated method invocations, like save them away for logging or reuse them to implement undo in our code.
Home Automation or Bust, Inc.
1221 Industrial Avenue, Suite 2000
Future City, IL 62914
I recently received a demo and briefing from Johnny Hurricane, CEO of Weather-O-Rama, on their new expandable weather station. I have to say, I was so impressed with the software architecture that I’d like to ask you to design the API for our new Home Automation Remote Control. In return for your services we’d be happy to handsomely reward you with stock options in Home Automation or Bust, Inc.
I’m enclosing a prototype of our ground-breaking remote control for your perusal. The remote control features seven programmable slots (each can be assigned to a different household device) along with corresponding on/off buttons for each. The remote ...