On Wed, 2002-12-11 at 15:03, Leo Sutic wrote:
> > On Wed, 2002-12-11 at 00:23, Leo Sutic wrote:
> > > There is currently *not* consensus that a component should be able
> to
> > > specify any interface that it should be able to cast the context to.
>
> > > That is, for every class/interface T,
> > >
> > > public void contextualize (Context context) {
> > > T myContext = (T) context;
> > > }
> > >
> > > the component should be able to declare that it expects to cast the
> > > context
> > > to a T. (For a less abstract example, replace T with BlockContext.)
> >
> > note: the main reason I don't like this is because it means
> > the container impl must do proxying, which is heavyweight.
>
> Note that the proposal does *not* say that the container must be able
> to *satisfy* any request. It merely acknowledges that a component
> may *ask* for a context class T.
ah. ok. So a component author declares "I need a T context" and the
container says "don't have one, so I'm not running you". Cool.
cheers,
- other Leo
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