Responding to setters
- by Simon Cave
What is the best way to respond to data changes when property setters are called. For example, if I have a property called data, how can I react when [object setData:newData] is called and still use the synthesised setter. Instinctively, I would override the synthesised setter like so:
- (void)setData:(DataObject *)newData {
// defer to synthesised setter
[super setData:newData];
// react to new data
...
}
...but of course this doesn't make sense - I can't use super like this. So what is the best way to handle this situation? Should I be using KVO? Or something else?
