[Pharo-users] "Theming" dictionaries?

Offray Vladimir Luna Cárdenas offray.luna at mutabit.com
Wed Feb 19 12:41:08 EST 2020


On 19/02/20 12:15 p. m., Esteban Maringolo wrote:
> On Wed, Feb 19, 2020 at 2:09 PM Richard Sargent
> <richard.sargent at gemtalksystems.com> wrote:
>
>> If you want to have a limited API, you wrap a dictionary with a new class that exposes just the API you desire consumers to use.
>>
>> In general, inheritance is often overused or/ misused. Composition is usually a better technique unless you want the full API of the hierarchy to be available and used.
> +1 to this.
>
> Inheriting means accepting the "interface contract" of being able to
> respond to all the messages understood by its superclasses.
> It also limits your model to future refactorings and modifications.
>
> I rarely, if ever, sub-classify any "base" class for domain modelling,
> and more so in the case of Collection classes, and when I had to deal
> with domain classes that did that, it always caused more problems than
> solutions.
>
> Regards,
>
> Esteban A. Maringolo
>

Thanks for all your answers in the thread. I think that I see how this
can be done now.

Cheers,

Offray




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