Null object pattern
Download as PPTX, PDF0 likes306 views
The document discusses using the Null Object Pattern to avoid checking if objects are null all the time. Instead of returning null values from methods, the pattern returns a "null object" that does nothing or indicates failure without raising exceptions. This changes the culture to not have to check for null values and validates objects are never actually null.
Null object pattern
- 2. Check if it’s Null all the time
- 10. Abstract Class private NullClass inherit static readonly NullClass •Return the NullClass as usual
- 21. Null Object Pattern change the culture which check if it’s valid all the time. If this object should be fail, it do nothing or return the failure status.