[reSIProcate-users] seek help

[macun19 <macun19@xxxxxxx>]

I confused when i read the class of Profile in dum project. The profile has a private attribute which is SharedPtr<Profile> mBaseProfile. The annotation describes "  All non-set settings will fall through to this Profile (if set)". But I don't understand well. I also read its offical website. I found this sentence:, "If you do not call a particular setXXX method on this object, then a corresponding getXXXX call will attempt to retrieve that value from the BaseProfile (provided in the constructor). This allows you to set up a hierarchy of profiles and settings." . My problem is what is a hierarchy of profiles and settings and the BaseProfile functions for?

Any advice i would be grateful!