Problem of inheritance

**lanz** · 21st February 2013, 05:44

Originally Posted by amleto

no, just no.

Could you please elaborate on that? I use similar approach sometimes and it would be good to hear about downsides.

**anda_skoa** · 22nd February 2013, 13:14

I would probably do it the other way around, i.e. letting the UI class have a pointer to the non-UI/logic class. This way the logic is more independent of the concrete UI implementation and UI can be changed more freely.

Cheers,
_

**amleto** · 22nd February 2013, 21:50

Originally Posted by lanz

Could you please elaborate on that? I use similar approach sometimes and it would be good to hear about downsides.

by changing inheritance for composition the overall design hasn't changed, just the implementation. It appears that the two concrete classes still cannot do a job by themselves, and still require each other to do a job.