You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@tapestry.apache.org by Mark Stang <ms...@pingidentity.com> on 2006/05/02 00:53:57 UTC
3.x timeouts?
Hi,
I am posting this to the Developer list because I need to understand what is happening under the covers. I have a component that has an ArrayList passed into it as "custom".
I display the ArrayList using a Foreach. I have "edit links". They are DirectLinks. If I wait about 6 minutes and then click on a link I get a null pointer exception. I have tracked the NPE to be because array list is null. However, the component drew the list and the links that I am clicking. So, where did my list go?
thanks,
Mark
Re: 3.x timeouts?
Posted by john mcteague <jo...@gmail.com>.
This sounds very similar to problem I had were we passed a listener into a
component that was mistakenly passed as 'in'. If you left it a few minutes
before clicking the button that invoked the listener, our listener would be
null. This was solved by (correctly) using auto.
Do you really need to use custom? Ive found that even for my most complex
apps, in and auto are the only two directions I have ever needed to use.
On 02/05/06, Mark Stang <ms...@pingidentity.com> wrote:
>
> Nick,
> I don't think I have caching disabled. I think, and I am trying to prove
> it now, that what happens is that it has to do with assigning a bound value
> and then somehow the bound value times out. I think that if I directly
> access the custom property without assigning it to a local variable it will
> be fine. I don't understand the timing issue though. Is there a Tapestry
> timeout of 5-6 minutes in there? Could it be that the component was put
> back in the pool and the variable was set to null? The solution I am trying
> is to always access the value via:
>
> private ArrayList<ConnectionItem> getConnections()
> {
> return
> (ArrayList<ConnectionItem>)getConnectionsBinding().getObject("connections",
> ArrayList.class);
> }
>
> Does this make sense to anyone?
>
> thanks,
>
> Mark
>
>
> -----Original Message-----
> From: Nick Westgate [mailto:nick@key-planning.co.jp]
> Sent: Tue 5/2/2006 1:59 AM
> To: Tapestry development
> Subject: Re: 3.x timeouts?
>
> Hi Mark.
>
> I've seen this behaviour when caching is disabled.
> Is that the case for you? Even so, I've not looked
> into why it happens - in production it works fine.
>
> Cheers,
> Nick.
>
>
> Mark Stang wrote:
> > Hi,
> > I am posting this to the Developer list because I need to understand
> what is happening under the covers. I have a component that has an
> ArrayList passed into it as "custom".
> >
> > I display the ArrayList using a Foreach. I have "edit links". They are
> DirectLinks. If I wait about 6 minutes and then click on a link I get a
> null pointer exception. I have tracked the NPE to be because array list is
> null. However, the component drew the list and the links that I am
> clicking. So, where did my list go?
> >
> > thanks,
> >
> > Mark
> >
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: tapestry-dev-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: tapestry-dev-help@jakarta.apache.org
>
>
>
>
RE: 3.x timeouts?
Posted by Mark Stang <ms...@pingidentity.com>.
Nick,
I don't think I have caching disabled. I think, and I am trying to prove it now, that what happens is that it has to do with assigning a bound value and then somehow the bound value times out. I think that if I directly access the custom property without assigning it to a local variable it will be fine. I don't understand the timing issue though. Is there a Tapestry timeout of 5-6 minutes in there? Could it be that the component was put back in the pool and the variable was set to null? The solution I am trying is to always access the value via:
private ArrayList<ConnectionItem> getConnections()
{
return (ArrayList<ConnectionItem>)getConnectionsBinding().getObject("connections", ArrayList.class);
}
Does this make sense to anyone?
thanks,
Mark
-----Original Message-----
From: Nick Westgate [mailto:nick@key-planning.co.jp]
Sent: Tue 5/2/2006 1:59 AM
To: Tapestry development
Subject: Re: 3.x timeouts?
Hi Mark.
I've seen this behaviour when caching is disabled.
Is that the case for you? Even so, I've not looked
into why it happens - in production it works fine.
Cheers,
Nick.
Mark Stang wrote:
> Hi,
> I am posting this to the Developer list because I need to understand what is happening under the covers. I have a component that has an ArrayList passed into it as "custom".
>
> I display the ArrayList using a Foreach. I have "edit links". They are DirectLinks. If I wait about 6 minutes and then click on a link I get a null pointer exception. I have tracked the NPE to be because array list is null. However, the component drew the list and the links that I am clicking. So, where did my list go?
>
> thanks,
>
> Mark
>
---------------------------------------------------------------------
To unsubscribe, e-mail: tapestry-dev-unsubscribe@jakarta.apache.org
For additional commands, e-mail: tapestry-dev-help@jakarta.apache.org
Re: 3.x timeouts?
Posted by Nick Westgate <ni...@key-planning.co.jp>.
Hi Mark.
I've seen this behaviour when caching is disabled.
Is that the case for you? Even so, I've not looked
into why it happens - in production it works fine.
Cheers,
Nick.
Mark Stang wrote:
> Hi,
> I am posting this to the Developer list because I need to understand what is happening under the covers. I have a component that has an ArrayList passed into it as "custom".
>
> I display the ArrayList using a Foreach. I have "edit links". They are DirectLinks. If I wait about 6 minutes and then click on a link I get a null pointer exception. I have tracked the NPE to be because array list is null. However, the component drew the list and the links that I am clicking. So, where did my list go?
>
> thanks,
>
> Mark
>
---------------------------------------------------------------------
To unsubscribe, e-mail: tapestry-dev-unsubscribe@jakarta.apache.org
For additional commands, e-mail: tapestry-dev-help@jakarta.apache.org