JavaSpaces™ Principles, Patterns, and Practice

5.9. Exercises

Exercise 5.1	Try a loose coupling experiment with the PingPong example: start Ping before Pong. What happens? Now try starting Pong before Ping. What happens?
Exercise 5.2	In the PingPong implementation, add a field to the Ball entry to hold a timestamp. Modify the PingPong code such that, if the player is Ping, a report of the roundtrip time of the message is printed each time a Ball is received from Pong.
Exercise 5.3	How would our PingPong example behave differently if Pong were changed to throw a ball first and then catch a ball (as Pong does)?
Exercise 5.4	In our basic channel implementation of Section 5.4, we noted some drawbacks in how we check for the existence of a channel. Our solution to creating channels ignores another ...