RE: [ws-caf-implement] Changes to Retailer.wsdl

["Furniss, Peter" <Peter.Furniss@choreology.com>]

Simeon,

More a question of what the application design is really. If the user
can take things out of the cart herself - and either carry on browsing,
or submit the editted cart - then there isn't really a need for the
removeFromCart action.

It's a particular instance of my often-stated claim that no realistic
application would be ambivalent between by-value and by-reference. Which
one is used affects the inter-party "contract" and any particular
application is going to go one way or the other.

On this particular, I sent a longer message to the main list on 18 June
(subject: demo app and by-reference/by-value), but no-one responded.


Peter

> -----Original Message-----
> From: Simeon Greene [mailto:simeon.m.greene@oracle.com] 
> Sent: 28 June 2004 23:29
> To: Furniss, Peter
> Cc: ws-caf-implement@lists.oasis-open.org
> Subject: RE: [ws-caf-implement] Changes to Retailer.wsdl
> 
> 
> Peter,
> I'm not sure if I understand the question.  You're saying 
> what would stop a customer from removing items from the cart 
> before submitting his order?  Or what stops him from taking 
> items out of the cart and then continuing to browse?  Well I 
> guess my answer to both of these questions is "nothing".  I 
> don't assume any problem here... and I'm not sure if you are 
> assuming any as you've used the term "feature" to describe it. 
> But... since the word feature can also mean bug, I'm hoping 
> you explain the issue if any you see here.
> 
> Regards,
> Simeon
> 
> 
> On Mon, 2004-06-28 at 17:54, Furniss, Peter wrote:
> > What is stop the customer just taking things out of the 
> shopping cart 
> > list in the context, before propagating it back to a store ?
> > 
> > This would seem to be a feature of propagation by value.
> > 
> > Peter
> > 
> > > -----Original Message-----
> > > From: Simeon Greene [mailto:simeon.m.greene@oracle.com]
> > > Sent: 28 June 2004 20:00
> > > To: ws-caf-implement@lists.oasis-open.org
> > > Subject: [ws-caf-implement] Changes to Retailer.wsdl
> > > 
> > > 
> > > The following changes were made to the attached 
> Retailer.wsdl file:
> > > 
> > > 1) Removed CustomerDetail from the submitOrderRequest message
> > > in the wsdl.
> > > <wsdl:message name="submitOrderRequest">        
> > > 	<wsdl:part name="CustomerDetails" 
> > > type="order:CustomerDetailsType"/>
> > >     </wsdl:message>
> > > 
> > > is now
> > > 
> > > <wsdl:message name="getCatalogRequest"/>
> > > 
> > > 2) Added a new operation: removeItemFromCart. To the
> > > RetailerPortType. 
> > > This will make it easy to remove items from the shopping cart 
> > > present in the context.
> > > 
> > > Regards,
> > > Simeon
> > > 
> 
>