From kde-core-devel  Sun Mar 03 23:22:03 2002
From: David Faure <david () mandrakesoft ! com>
Date: Sun, 03 Mar 2002 23:22:03 +0000
To: kde-core-devel
Subject: Re: KParts API: thinking about the future (patch)
X-MARC-Message: https://marc.info/?l=kde-core-devel&m=101519785709529

On Monday 04 March 2002 01:17, aleXXX wrote:
> Where's the difference between
> 
> public:
>    virtual bool doSomething();
> 
> and 
> public:
>    bool doSomething();    //calls doSomethingImpl();
> protected:
>    virtual bool doSomethingImpl();

With the latter you can add some code to be executed before
or after all calls to doSomethingImpl(). You can't do that with
the former, you have no guarantee that the derived class will call
its parent implementation, and you don't either have control on
"before" or "after". 

-- 
David FAURE, david@mandrakesoft.com, faure@kde.org
http://people.mandrakesoft.com/~david/, http://www.konqueror.org/
KDE, Making The Future of Computing Available Today