Implementing lock and unlock outside Data class

[Charles Dupin]

Hi guys,
Do you see any problem implementing the two methods Data.lock() and Data.unlock() outside Data class, for example in a lockManager not subclassed from Data.
The instruction says: Part of your assignment will be to enhance the Data class. You may do this by modification or subclassing, but you should document the approach and reason for your choice.
Thanks for your help.
Charles.

[Mark Spritzler]

Actually that is the preferred method of implementing lock and unlock methods.
Good Luck
Mark

[Charles Dupin]

OK,
Thank you vm;
Charles.