Design Patterns Java™ Workbook

Appendix B. Solutions

SOLUTION 11.4....................................................................................................................................

The completed diagram should appear as in Figure B.15. A legitimate but less informative
labeling would name both receivers of getApogee() as being of type Rocket. In fact, both
the server and the client programs refer to these objects as instances of the Rocket interface.

Figure B.15. A proxy forwards a client's calls so that to the client, the remote object

appears as if it were local.