--- Victor Volle <[EMAIL PROTECTED]> wrote:
> > a) We introduce all those methods suggested by Victor Volle:
>
> It was never meant as a suggestion but rather as a "beware" :-)
>
> > boolean isIndexed();
> > boolean isMapped();
> > boolean isListed(); // I would call it
> "isUnorderedCollection"
> >
> > we keep all access methods and throw an exception when the wrong
> one is
> > called.
> >
> >
> > b) We follow what I think is Berin's suggestion (admittedly I don't
> always
> > understand them - I am not a native speaker of English, C# and
> Avalon),
> >
> > Anyway, my understanding is that the idea is to have these methods:
> >
> > field.getAttributeMethod(), // Type based
> > field.getAttributeMethod(Object instance) // Instance based
> >
> > which return one of the following
> > BasicAttributeMethod
> > IndexedAttributeMethod
> > MappedAttributeMethod
> > UnorderedCollectionAttributeMethod
> > IterationAttributeMethod
> >
> > (names would have to be fixed up)
> >
> > Each of these would have methods specific to the corresponding way
> of
> > manipulating the attribute. For example,
> >
> > class BasicAttributeMethod {
> > Object get(Object instance);
> > void set(Object instance, Object value);
> > Object setNew(Object instance, Clazz clazz, Object[]
> parameters);
> > }
> >
> > class IndexedAttributeMethod {
> > int getSize(Object instance);
> > Object get(Object instance, int index);
> > void set(Object instance, int index, Object value);
> > Object setNew(Object instance, int index, Clazz clazz, Object[]
> > parameters);
> > }
> >
> > etc.
> >
> > I think (b) is the nicer of the two appoaches.
>
> that would mean calling "instanceof".
> I do not like either solution.
I know...
> Anyway, I would also tend to solution b) if we throw
> in the method add() for Indexed and (Un)orderedCollection.
> (Lists are not unordered, Sets are. What about
> CollectionAttribute and make IndexedAttribute a subclass?)
Sure.
> Victor
- Dmitri
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