Try looking through the servlet javadoc here: http://java.sun.com/j2ee/sdk_1.3/techdocs/api/
Look at HttpServletRequest and HttpSession David
From: "atta ur-rehman" <[EMAIL PROTECTED]>
Reply-To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
Subject: Re: Session Cleanup
Date: Thu, 17 Oct 2002 13:55:55 -0700
Thanks Craig. That explains. I think we can afford few more cpu cycles
instead of memory. Now is there a way to store collections in the request
scope instead of session scope? by collections I mean, collections used to
populate <html:select> controls?
ATTA
----- Original Message -----
From: "Craig R. McClanahan" <[EMAIL PROTECTED]>
To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
Sent: Thursday, October 17, 2002 1:36 PM
Subject: Re: Session Cleanup
>
>
> On Thu, 17 Oct 2002, atta ur-rehman wrote:
>
> > Date: Thu, 17 Oct 2002 13:36:41 -0700
> > From: atta ur-rehman <[EMAIL PROTECTED]>
> > Reply-To: Struts Users Mailing List <[EMAIL PROTECTED]>
> > To: Struts Users Mailing List <[EMAIL PROTECTED]>
> > Subject: Re: Session Cleanup
> >
> > Thanks, David. Putting commonly used collection in the application scope
is
> > a nice idea; both for storage space and performance reasons.
> >
> > Now how do I store my form beans in request instead of session? Is it
the
> > "scope" attribute of the action mapping that determines it?
>
> Yes.
>
> > And what are
> > performance implications of this change?
>
> The set of attributes in the request or session object supplied by the
> servlet container is usually a HashMap, so performance of storing the form
> bean in either is equivalent. However, your app will benefit from the
> fact that the form bean is automatically released at the end of the
> request, so the overall memory occupancy of your app will likely be lower,
> but the CPU time consumption might be higher (due to increased garbage
> collection).
>
> For most apps, this tradeoff is very much worth it because having excess
> CPU capacity is more common than having excess memory to store the form
> beans in session scope in between requests.
>
> >
> > Regards,
> >
> > ATTA
>
> Craig
>
>
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