RE: [Springframework-developer] SWF - Creating HTTP sessions - Feedback needed

[Keith D. <ke...@in...>]

What do you mean exactly?  If you mean getting/putting data in different
scopes, that's handled by another object: the RequestContext.  There is a
request Scope (requestContext.getRequestScope()) and a flow Scope
(requestContext.getFlowScope()).  Ultimately, hidden from the user of
course, Flow scope data gets managed in the active FlowSession object, which
is at the top of the FlowExecutionStack, which is serializable.

Is this what you wanted to hear? :-)

Keith

-----Original Message-----
From: spr...@li...
[mailto:spr...@li...] On Behalf Of
Rob Harrop
Sent: Friday, April 01, 2005 4:01 AM
To: spr...@li...
Subject: Re: [Springframework-developer] SWF - Creating HTTP sessions -
Feedback needed

What about scoping - how will this be handled by the storage interface?

Rob

Keith Donald wrote:

>Yes, so a HttpSessionFlowExecutionStorage would use the HttpSession, a
>HttpRequestFlowExecutionStorage would use the request, for example.  The
>latter would also have to know how to reconstruct the FlowExecution soley
>from the request parameters, while the former would just pull an existing
>instance from the HttpSession given the flowExecutionId in the input Event.
>
>Keith
>
>-----Original Message-----
>From: spr...@li...
>[mailto:spr...@li...] On Behalf Of
>Seth Ladd
>Sent: Thursday, March 31, 2005 7:56 PM
>To: spr...@li...
>Subject: Re: [Springframework-developer] SWF - Creating HTTP sessions -
>Feedback needed
>
>On Thu, 31 Mar 2005 19:46:42 -0500, Keith Donald <ke...@in...>
>wrote:
>  
>
>>Seth,
>>
>>Excellent idea.
>>
>>If we extract an interface from the HttpServletExecutionManager, we get
>>something like:
>>
>>public interface FlowExecutionStorage {
>>    public FlowExecution loadFrom(Event inputEvent);
>>    public void saveOrUpdate(FlowExecution flowExecution);
>>    public void remove(FlowExecution flowExecution);
>>}
>>
>>Or something like that.  Erwin what do you think? Need to think about it
>>more.  I imagine here the FlowExecutionStack would have to be
>>    
>>
>reconstructed
>  
>
>>from the Event parameters, for example: http request parameters, in an
>>    
>>
>http
>  
>
>>servlet environment.  It also has to be rehydrated with services on
>>deserialization as well, including the FlowLocator and its
>>FlowExecutionListenerList.
>>    
>>
>
>
>Keith,
>
>Just so I'm clear... this isn't to replace the concept and purpose of
>the HttpSession?  This is just to provide a way to get the state info
>of the flow into the request to avoid the need for session creation?
>
>Thanks!
>Seth
>
>
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