>Also most
> access strategies seem to be useless to me. I only use the
> NullAccessor (used internally), the ContainerAccessor (used
> internally), the SelectorAccessor, and rarely the
> AutoSelectorAccessor. Time for a clean-up?
>
I think the ChainAccessor strategy is also very useful

> From: renggli@iam.unibe.ch
> Subject: Re: MANullAccessor
> Date: Mon, 15 Oct 2007 07:24:04 +0200
> To: smallwiki@iam.unibe.ch
>
> > Does MANullAccessor have to be so so... erm unusable?
>
> One important thing to notice is that the accessors are also used to
> establish identity between descriptions. In case of the NullAccessor
> this is done trough an UUID, in case of the SelectorAccessor this is
> naturally done trough its selector.
>
> > If you happen to use it nothing seems to work with it.
> >
> > i.e. accessor selector doesnt work, one should argue that it shouldnt,
> > but is it doing a good job of being a null?
>
> Since the NullAccessor is the default, it is supposed to warn the
> user of a missing access strategy. In case descriptions are created
> by end-users (where something like an access strategy would be out of
> scope), the NullAccessor establishes a perfect identity, that can
> then be used in #readUsing: and #write:using: to dispatch the access
> for example to a dictionary.
>
> > Most users of read: dont test canRead: first.
>
> I wonder if #canRead: and #canWrite: are still needed? Also most
> access strategies seem to be useless to me. I only use the
> NullAccessor (used internally), the ContainerAccessor (used
> internally), the SelectorAccessor, and rarely the
> AutoSelectorAccessor. Time for a clean-up?
>
> > I am thinking of implementing a subclass MADummyAccessor which does
> > implement read: just so as it can play with the other accessors in
> > mementos etc.
>
> That would make sense in your case, I guess.
>
> Cheers,
> Lukas
>
> --
> Lukas Renggli
> http://www.lukas-renggli.ch
>
>
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