Thank you, Howard, now it's clear.
But I have one more question - instead beaneditor, I tried to nest
beandisplay component into the parent beaneditor and despite all it works
fine even if it gets Object, not Child. Why in this case it works in a
different way?
2010/9/28 Howard Lewis Ship <hls...@gmail.com>
> Normal behavior. Tapestry builds a model (the BeanModel) to identify
> the properties to edit. It does this based on the type of the
> property, which is statically determined. The original type of the
> parent.child expression was Child. When you changed the child
> property to be type Object, Tapestry built a model for Object, which
> as no properties.
>
> You can, alternatively, use the BeanModelSource to build a model
> object from Child.class, and pass that directly to the BeanEditor via
> its model parameter.
>
>
> On Tue, Sep 28, 2010 at 1:30 PM, Anton Mezerny <anton.meze...@gmail.com>
> wrote:
> > Hi!
> >
> > I have 2 classes:
> > public static class Parent{
> > private String name;
> > private String description;
> > private Child child;
> >
> > //getters and setters
> > }
> >
> > public static class Child{
> > private String childName;
> > private String childDescr;
> > //getters and setters
> > }
> >
> > Everything renders fine, when I have the Parent object with the Child
> object
> > nested in it, and I try to render this combination like here:
> > <t:form>
> > <t:beaneditor object="parent" add="child">
> > <t:parameter name="child">
> >
> > <t:beaneditor object="parent.child"/>
> >
> > </t:parameter>
> > </t:beaneditor>
> > </t:form>
> >
> > But if I change Parent class to:
> >
> > public static class Parent{
> > private String name;
> > private String description;
> > private Object child; //changed to Object instead of Child
> > //getters and setters
> > }
> >
> > my nested child object doesn't renders on the page. There is no any
> > exception - just child's fields disappear.
> >
> > Is it normal behaviour, or a bug? And if normal, why can't beaneditor
> > resolve class type and render child object like in first example above?
> >
>
>
>
> --
> Howard M. Lewis Ship
>
> Creator of Apache Tapestry
>
> The source for Tapestry training, mentoring and support. Contact me to
> learn how I can get you up and productive in Tapestry fast!
>
> (971) 678-5210
> http://howardlewisship.com
>
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