Hi,
I am beginner on OOP design. I read couples of articles from FoxTalk which talk about OO pattern such as Mediator, Bridge....
Recently, I am trying to design a FileTransfer Class. However, I am not sure wheather my design is correct or... could you please give me some advise?

1. Should I use Bridge pattern to design my oFileTransfer Class, if my application may use serial port or Winsock to transfer file?

2. My oModem class may raise some event such as EndTransfer or evTransferingData. If I implement these event interface in oFileTransfer Class and being raised by omodem class, is it ok?

Pls don hestitate to ask.

Thank you