First sorry, if you have already received this message but I
changed my e-mail adress and I don't have
received this message that I posted yesterday.
The following question is not specific to Struts but many messages
were exchanged on the list about the management of the HttpSessions objects.
In addition a lot of people developing a Struts applications like
me one being confronted with this problem. My question is about business
object.
Let us consider the following shopping cart application with
the following architecture
WebBrowser1 ->
WebServer/Struts application ---(IIOP/CORBA)->
ApplicationServer
WebBrowser2->
we distinguish two "types" of business objects for a client:
- a catalog of object to show available articles; the difficulty is
that all the clients don't have the same global list because access to
objects depend on authorization mechanism. We get the catalog
through a CORBA request to our application server,the user right filter is
not done on the web server side but on the application server. The catlog
object is a cache of the application server data.
- a shopping cart object to temporarily hold a client's selection (
= these objects represent the state of the client); this object
represents the items and quantities of the items purchased by the
client.
Concerning the shopping cart object one does not put questions it
will be saved in the HttpSession object. But concerning the catalog
of object (cache of the application serer data), where does one have
to save it? in the HttpSession too ?
because of authorization mechanism this object can not be saved in
the ServletContext.
So we have two solutions:
- send a request to the application server each time the page is
displayed
- or save this object in the HttpSession object
In the last case we will have redundancy, some object will be
duplicated.
Is there an other solution ? does somebody have already to manage
this case of figure ?
Thanks a lot for your help
Sandra
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