First, let me frame my question in light of real life terms that we have to deal with. We have some complex nested value objects that return from the backend. Typically the user on the front end is provided the opportunity to modify just a few of the nested VO properties. The nested VOs are thus stored in Session scope which makes it very easy to return back the full VOs with the modified properties (after BeanUtils does the copying of the request params). For those that are wondering why not just create an ActionForm to capture the single properties you need, the answer is this would be a nightmare to then figure out how to get those properties from your from back into the correct spots in the different ValueObjects. (By the way, I don't think the backend should need to provide ways to handle how the front is giving you the data so the backend 'should' be able to just give me a VO with nested VOs inside). All of this works completely fine in a Struts environment and is made really easy by the use of the nested tag. (Validation is handled on the backend).
My question then becomes... will JSF be able to handle nested objects just as easily? I'm assuming it should but I haven't explored any of the JSF tags. I'm assuming that at the very least I could do like I would do it with JSTL and Strtus (not using the Nested tag) and be able to write a JSF input maybe like:
<h:inputText value="#{someVo.someList[${someHandleToAnIndexInLoop}].someList[${someHandleToAnIndexInLoop}].someList[${someHandleToAnIndexInLoop}].someValue}"/>
Of course it would ne nicer with an nested tag equivalent, but the above will work. Just checking to make sure JSF can deal with this in some way before I get started. If not, I'm really stuck not being able to use JSF, since our business requirements are complex and the objects coming from the backend will be nested and I need to return them back to the backend in their modified form. (I also don't want to have to hardcode a bunch of hidden variable place holders so that's why I'm using Session to store the VOs).
Thanks for any light on this issue.
-- Rick
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