Re: TemplateModelException when unwrapping SimpleMethodModel

Seems BeansWrapper produces a few disfunct TemplateSequenceModels...
like CollectionModel-s whose get(index) method fails (had to work it
around in 2.3.17). I don't know why SimpleMethodModel implements
TemplateSequenceModel at all. As its size() method isn't working it
violates the interface, and its get(index) method just returns a List
that only contains the index, which sounds strange.

Anyway, I suppose SimpleMethodModel should implement
AdapterTemplateModel, and return getMember() for getAdaptedObject.
That would, coincidently, solve the issue with DeepUnwrap. Attila,
what do you think, can I go ahead and do that in 2.3? Is this the
right thing to do?

-- 
Best regards,
 Daniel Dekany


Thursday, August 4, 2011, 12:06:51 AM, Rebecca Younes wrote:

> Now I see that as long as I'm working within the
> freemarker.ext.beans package, I can call
> SimpleMethodModel.getMember() to get its member method. This may be
> the only option, given the issues with the unwrap method.
>
> From: Rebecca Younes <[email protected]>
> Date: Wed, 3 Aug 2011 17:22:01 -0400
> To: "[email protected]"
> <[email protected]>
> Subject: Re: TemplateModelException when unwrapping SimpleMethodModel
>
> OK, I see that SimpleMethodModel.size() throws an exception, which
> seems to me an indication that SimpleMethodModel shouldn't implement
> TemplateSequenceModel in the first place. However, given that it
> does, what can I do to get the underlying method?
>
> Thanks.
>
> From: Rebecca Younes <[email protected]>
> Date: Wed, 3 Aug 2011 17:10:30 -0400
> To: "[email protected]"
> <[email protected]>
> Subject: TemplateModelException when unwrapping SimpleMethodModel
>
> Hello,
>
> I'm getting a TemplateModelException when I try to do
> DeepUnwrap.permissiveUnwrap() or DeepUnwrap.unwrap() on a
> SimpleMethodModel. The error is generated in the following code
> block, with the message "?size is unsupported for:
> freemarker.ext.beans.SimpleMethodModel". However, size() is defined
> for this class. What is going wrong, and is there a workaround so
> that I can get at the wrapped method?
>
>         if(model instanceof TemplateSequenceModel) {
>             TemplateSequenceModel seq = (TemplateSequenceModel)model;
>             ArrayList list = new ArrayList(seq.size());
>             for(int i = 0; i < seq.size(); ++i) {
>                 list.add(unwrap(seq.get(i), nullModel, permissive));
>             }
>             return list;
>  }
>
> Thank you.
>
> Rebecca Younes


------------------------------------------------------------------------------
BlackBerry&reg; DevCon Americas, Oct. 18-20, San Francisco, CA
The must-attend event for mobile developers. Connect with experts. 
Get tools for creating Super Apps. See the latest technologies.
Sessions, hands-on labs, demos & much more. Register early & save!
http://p.sf.net/sfu/rim-blackberry-1