[snip]
JS, Raymond,
I have attached a picture depicting the components the Shopping Store
Composite will have. I hope this represents the same picture you had
in mind.
Looks pretty good, I have a few suggestions below.
Otherwise, please let me know.
As you can see there, some questions arose:
1 - The composite will offer its service via WS or we will invoke it
locally (the local one will be easier to implement J)
<rfeng>I think it could be both: we add binding.ws and binding.sca for
the service.</rfeng>
I think we need two composite services, one for the catalog and the
other for the shopping cart, as SCA cannot promote two
component-services as one composite-service.
The services could be provided with a selection of bindings:
- binding.ws
- binding.jsonrpc and to make it easy to invoke from an Ajax client
- binding.atom will work well with Ajax clients too
- binding.sca will help integrate with other SCA composites in an SCA domain
2 - The Shopping Cart Service will be implemented as a POJO or as a
Session Bean? -> I have it currently implemented as a POJO but turning
it into a session bean will not be difficult (fingers crossed)
<rfeng>I would say POJO for now as we don't have implementation.jee
yet. We could add a reference to an external EJB using binding.ejb if
it's needed.</rfeng>
+1 for a Java component implementation for now
+1 for putting together a JEE variation of the shopping cart later, when
we have support for <implementation.jee>
3 -The Persistence Service will be implemented as a POJO or as an
Entity Bean?
4 - Shall we use DAS to persist the data?
<rfeng>We could use implementation.data or implementation.das to
persist the data. Luciano, which one supports write?</rfeng>
How about starting really simple with a Java component implementation
that just uses JDBC to talk to the database like what Douglas has
started to contribute recently (see
http://issues.apache.org/jira/browse/TUSCANY-1844)?
I have put his implementation of the getting-started store sample that
integrates a database under demos/tutorial/store-database, thinking that
it could be useful in the context of the tutorial.
Let's try to come up with a final version of it so we can start taking
ownership of the different components in order to start coding.
Two more thoughts:
- add a local Catalog component that has the catalog store in a local
database.
- run the different components on different SCA nodes.
Hope to hear from you soon.
Regards,
Mario E. Antollini
Intel Software
ASDC
+54 351 414 5594
[EMAIL PROTECTED]
--
Jean-Sebastien
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
