Dear Gerhard,
thank you for the quick reply. I am using the ExtVal library in my custom code
to get further information about the value binding in order to map errors (from
our backend) that occur at the Invoke Application phase to the corresponding
UIInput-fields. That means, I need to know for each UIInput-object the bound
backing bean object and the attribute name, both are described by the EL
expression in the value-attribute of the UIInput (e.g., #{cc.attrs.person.name}
-> Backing Bean object is "person1:Person", attribute name is "name"; person1
is just an example of an existing object at runtime).
If the ELHelper is not able to resolve "cc.attrs" expressions, I would be
grateful if you could recommend me another solution.
Regards,
Rene
-------- Original-Nachricht --------
> Datum: Wed, 2 Jun 2010 00:39:17 +0200
> Von: Gerhard Petracek <gerhard.petra...@gmail.com>
> An: MyFaces Discussion <users@myfaces.apache.org>
> Betreff: Re: ExtVal: ELHelper composite component problem
> hi rene,
>
> are you using the implementation provided by extval for your custom code?
> or
> are you just using extval and the problem occurs during the validation
> process?
>
> regards,
> gerhard
>
> http://www.irian.at
>
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>
> 2010/6/2 Rene Stehr <why-de...@gmx.de>
>
> > Hello,
> >
> >
> >
> > I am using the ELHelper class in order to achieve information about the
> > value binding of UIComponents (the binded attribute and the
> corresponding
> > backing bean). This information can be received by the method
> > „ELHelper.getPropertyDetailsOfValueBinding(UIComponent)“, which
> returns a
> > PropertyDetails-object that contains the data I need.
> >
> >
> >
> >
> >
> > Here is the code:
> >
> > ELHelper helper = ExtValUtils.getELHelper();
> >
> > PropertyDetails details = helper.getPropertyDetailsOfValueBinding(comp);
> //
> > The comp-Object is an instance of UIInput.
> >
> >
> >
> >
> >
> > This solution works very well, however, if the comp-object is part of a
> > custom Composite Component, the details-object is always null. I have
> > started to debug the ELHelper but until now I have no clue how it works
> in
> > detail. I suppose that the problem is caused by the “cc.attrs”
> expression
> > in
> > the value-binding of the composite components, e.g.,
> > #{cc.attrs.person.name}, that probably can not be resolved.
> >
> > I also tried to use the ValueExpression directly but this did not work
> as
> > well.
> >
> >
> >
> > Does anyone understand that problem or even have a solution?
> >
> >
> >
> > Thanks in advance for any help
> >
> > Regards,
> >
> > Rene
> >
> >
> >
> > -----------------
> >
> > Facts:
> >
> > JSF: mojarra 2.0.2
> >
> > ExtVal: 2.0.4 Snapshot
> >
> > Server: Apache Tomcat 6.0.26
> >
> >
> >
> >
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