Uncle Bob's Agile Development Corner
ObserverEvolving into a pattern, Part 1
by Robert C. Martin
Listing 5. MockTimeSource.java.
public class MockTimeSource implements TimeSource
private ClockDriver itsDriver;
public void setTime(int hours, int minutes, int seconds)
itsDriver.update(hours, minutes, seconds);
public void setDriver(ClockDriver driver)
itsDriver = driver;
Robert C. Martin is president of Object Mentor Inc., a firm that offers high-level, OO software design consulting, training, and development services. He is the author of Designing Object Oriented C++ Applications Using the Booch Method. He can be contacted at email@example.com.