Re: Ognl issues in tapestry 4.1.6

[Howard Lewis Ship <hl...@gmail.com>]

It would be helpful to see the Domain class. Perhaps there's an
overloaded method that's confusing the OGNL code. As you can see, it's
trying to generate bytecode for your expression, but failing for some
reason. Classloader issues can get very tricky inside this kind of
code.

On Tue, May 12, 2009 at 8:12 AM,  <Ho...@algorithmics.com> wrote:
>
> Hi
> Ognl in 4.1.6 is behaving rather strangely(I believe this must be a bug)! We're trying to upgrade from 4.0.2.
> Here's a simplified version of what's happening in an insert component. value="ognl:content.domain['startDate']" renders correctly however value="ognl:content.domain[sharedPickerProperty]" where sharedPickerProperty is a property of the page and has initial-value="literal:startDate" results in
> org.apache.tapestry.services.impl.HiveMindExpressionCompiler] context=/opvantage - Error generating OGNL getter for expression content.domain[sharedPickerProperty] with root $DomainBase_42@3c1[edit:Event] and body:
> { return ((com.algorithmics.opvantage.model.domain.Event)(($DomainBase_42)$2).getContent().getDomain()).getStartDate();}
> org.apache.hivemind.ApplicationRuntimeException: Unable to add method java.lang.Object get(ognl.OgnlContext, java.lang.Object) to class $ASTChain_121354aa5aa: [source error] no such class: com.algorithmics.opvantage.model.domain.Event
>
> Now obviously com.algorithmics.opvantage.model.domain.Event does exist because content.domain['startDate'] works!
> How can we get around this because in a dynamic application like ours we don't have the luxury of doing content.domain.startDate/content.domain['startDate'] because we don't know what the property name is at .page creation.
> Any help would be greatly appreciated.
> Thanks in advance
> Howard
>
>
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-- 
Howard M. Lewis Ship

Creator of Apache Tapestry
Director of Open Source Technology at Formos

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