Retrieve list of valid children based on element name.

[Timothy Strimple]

I'm trying to setup a system that will allow me to dynamically build xml 
documents based on a schema. I've successfully implemented PSVI thinking 
that would be all I needed to build the list I wanted, however it only 
seems to build a list of children that are actually in the xml, not what 
is defined within the schema. For example, in the case of an optional 
attribute, it doesn't show up unless the xml document contains it, even 
though it's allowed via the stylesheet. I basically just need a list of 
valid elements and attributes for a particular element. Is there a way 
to build this list using xerces?

Thanks,
Timothy Strimple