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Posted to users@tapestry.apache.org by Chris Conrad <cc...@vasoftware.com> on 2005/06/15 07:03:18 UTC
Tapestry 4 ASO question
I was wondering if there is a way to specify that my ASOs should be
set to null by default instead of Tapestry creating a new instance?
I'd like to use an ASO to store logged in user information. If
getUser() returns null then I know the user isn't logged in. Instead
I need to do getUser.getId() == 0 which works, but doesn't feel as
clean as doing a null check.
--Chris
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Re: Tapestry 4 ASO question
Posted by Howard Lewis Ship <hl...@gmail.com>.
Application State Object. The generalization of "visit" and "global" in 4.0.
On 6/15/05, Erik Hatcher <er...@ehatchersolutions.com> wrote:
> What is an "ASO"?
>
>
> On Jun 15, 2005, at 1:03 AM, Chris Conrad wrote:
>
> > I was wondering if there is a way to specify that my ASOs should be
> > set to null by default instead of Tapestry creating a new
> > instance? I'd like to use an ASO to store logged in user
> > information. If getUser() returns null then I know the user isn't
> > logged in. Instead I need to do getUser.getId() == 0 which works,
> > but doesn't feel as clean as doing a null check.
> >
> > --Chris
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: tapestry-user-unsubscribe@jakarta.apache.org
> > For additional commands, e-mail: tapestry-user-help@jakarta.apache.org
> >
>
>
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>
--
Howard M. Lewis Ship
Independent J2EE / Open-Source Java Consultant
Creator, Jakarta Tapestry
Creator, Jakarta HiveMind
Professional Tapestry training, mentoring, support
and project work. http://howardlewisship.com
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Re: Tapestry 4 ASO question
Posted by Hugo Palma <hp...@digitalis.pt>.
I think Chris is refering to Application State Objects, right Chris ?
Anyway, i don't think that what you are saying is possible(although i
never really tried doing that). What i usually do for implementing a
functionality similar to what you want is adding a property "user" to
the visit ASO. Before the user logs in that property is always null so
you can check if a user is logged by a /getVisit().getUser() == null
/statement. You can simplofy this even further by implementing in you
base class a method like:
boolean isUserLogged()
{
return getVisit().getUser() != null;
}
Hope this helped.
Cheers
Hugo
Erik Hatcher wrote:
> What is an "ASO"?
>
>
> On Jun 15, 2005, at 1:03 AM, Chris Conrad wrote:
>
>> I was wondering if there is a way to specify that my ASOs should be
>> set to null by default instead of Tapestry creating a new instance?
>> I'd like to use an ASO to store logged in user information. If
>> getUser() returns null then I know the user isn't logged in.
>> Instead I need to do getUser.getId() == 0 which works, but doesn't
>> feel as clean as doing a null check.
>>
>> --Chris
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: tapestry-user-unsubscribe@jakarta.apache.org
>> For additional commands, e-mail: tapestry-user-help@jakarta.apache.org
>>
>
>
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> To unsubscribe, e-mail: tapestry-user-unsubscribe@jakarta.apache.org
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>
>
Re: Tapestry 4 ASO question
Posted by Erik Hatcher <er...@ehatchersolutions.com>.
What is an "ASO"?
On Jun 15, 2005, at 1:03 AM, Chris Conrad wrote:
> I was wondering if there is a way to specify that my ASOs should be
> set to null by default instead of Tapestry creating a new
> instance? I'd like to use an ASO to store logged in user
> information. If getUser() returns null then I know the user isn't
> logged in. Instead I need to do getUser.getId() == 0 which works,
> but doesn't feel as clean as doing a null check.
>
> --Chris
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: tapestry-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: tapestry-user-help@jakarta.apache.org
>
---------------------------------------------------------------------
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Re: Tapestry 4 ASO question
Posted by Howard Lewis Ship <hl...@gmail.com>.
Defer by one level; the ASO can be an Authentication object with a
user property that starts null.
<inject property="authentication" type="state" object="authentiation"/>
ognl:authentication.user == null
On 6/15/05, Chris Conrad <cc...@vasoftware.com> wrote:
> I was wondering if there is a way to specify that my ASOs should be
> set to null by default instead of Tapestry creating a new instance?
> I'd like to use an ASO to store logged in user information. If
> getUser() returns null then I know the user isn't logged in. Instead
> I need to do getUser.getId() == 0 which works, but doesn't feel as
> clean as doing a null check.
>
> --Chris
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: tapestry-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: tapestry-user-help@jakarta.apache.org
>
>
--
Howard M. Lewis Ship
Independent J2EE / Open-Source Java Consultant
Creator, Jakarta Tapestry
Creator, Jakarta HiveMind
Professional Tapestry training, mentoring, support
and project work. http://howardlewisship.com
---------------------------------------------------------------------
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