Re: scope for form beans

[Shengmeng Liu]

Hi,
Essentially, the form bean is the model for the web tier.
It's state can be associated with a certain request, in this case,
it will be stored as a request-scope attribute. If it's state is 
associated with a certain user/session, then it will be stored as
a session-scope attribute.
Categorizing state into different scopes, namely request, session and
context will best reflect its nature and allow the servlet container to
manage(instantiate/use/destroy) accordingly. Form bean is just one of
this kind of state.

Hope this helps,
Shengmeng Liu

- Original Message - 
From: "Chen, Yong" <[EMAIL PROTECTED]>
To: "'Struts Users Mailing List'" <[EMAIL PROTECTED]>
Sent: Tuesday, January 08, 2002 11:43 PM
Subject: RE: scope for form beans


> what if one of your forms is never used in a session?
> and with session level bean, how would you know the form bean doesn't
> contain old data? form is request based not session based. you can certainly
> store some info. from the form in the session.
> 
> yc
> 
> 
> -Original Message-
> From: Kuntz Peter, NY [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, January 08, 2002 7:29 AM
> To: [EMAIL PROTECTED]
> Subject: scope for form beans
> 
> 
> Hi,
> 
> what are the motivations for having a request or session scoped form bean.
> As far as I could see in the struts source code a request scoped form bean
> is instantiated newly for every request. What are the reasons for that. Why
> shouldn't a form bean always exist during the time the session exists?
> 
> peter
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Re: scope for form beans

[Muralidhar_BR]

Hi
does this also mean the form bean goes null when the session gets timedout?
Regards,
Murali




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Re: scope for form beans

[Freek Segers]

Hi,

I'm using a session scope Form bean in a wizard like interface. Because the
Form has session scope the user can go back to any step in the wizard and
find his previously filled in values.

Greetings,

Freek Segers

on 08-01-2002 14:28 you wrote:

> Hi,
> 
> what are the motivations for having a request or session scoped form bean.
> As far as I could see in the struts source code a request scoped form bean
> is instantiated newly for every request. What are the reasons for that. Why
> shouldn't a form bean always exist during the time the session exists?
> 


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RE: scope for form beans

[Chen, Yong]

what if one of your forms is never used in a session?
and with session level bean, how would you know the form bean doesn't
contain old data? form is request based not session based. you can certainly
store some info. from the form in the session.

yc


-Original Message-
From: Kuntz Peter, NY [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, January 08, 2002 7:29 AM
To: [EMAIL PROTECTED]
Subject: scope for form beans


Hi,

what are the motivations for having a request or session scoped form bean.
As far as I could see in the struts source code a request scoped form bean
is instantiated newly for every request. What are the reasons for that. Why
shouldn't a form bean always exist during the time the session exists?

peter
DISCLAIMER: The information in this message is confidential and may be
legally privileged. It is intended solely for the addressee.  Access to this
message by anyone else is unauthorised.  If you are not the intended
recipient, any disclosure, copying, or distribution of the message, or any
action or omission taken by you in reliance on it, is prohibited and may be
unlawful.  Please immediately contact the sender if you have received this
message in error. Thank you

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