On Mon, Dec 20, 2010 at 1:13 AM, St�phane Ducasse <stephane.ducasse@inria.fr> wrote:

On Dec 20, 2010, at 3:46 AM, Elliot Finley wrote:

> Hello,
>
> � � �If I have an object with accessors #firstName, #lastName and #age, how would I short shirt circuit or replace these selectors? �In other words, how would I modify an object after it's already been created?

Hello

there are plenty of ways to do that but I think that this is not what you want to do.
Tell us what you are trying to achieve?

Did you read smalltalk by example from my web page? There is a chapter on object creation and instantiation.

Stef

I haven't, I'll see if I can find it.

I'm trying to create a memento that will work for a facade. �Currently I have:

IFBaseModel >> memento

�� | memento |

�� memento := self copy.

�� memento refModel: self.

�� ^ memento.

Which works for a normal model object. �But a facade wouldn't be storing it's values in instance variables. �It would be proxying for one or more underlying model objects and so would a copy of that object. �So rather than have the memento just be a simple copy of the object, I want it to be a copy of the object and intercept the relevant accessors (I have a list) and redirect them to a dictionary. �Then after validation, etc. the updateRefModel selector on the memento would update the underlying model or facade. �Thus it would work for both normal models and facades.�

Elliot