[vwnc] XML to Object Mapping

Hi,

I am trying to map a custom xml file to existing smalltalk objects and got some questions.

1. Namespaces
The given document does not declare any namespace. Is it possible to process the document without specifing a namespace in the binding? If not, which is the best way to apply a namespace to the whole document?

2. Nested Elements
Imagine the following structure:
        <foo>
                <name>name 1</name>
                <bar attr="value 1"/>
        </foo>
or:
        <foo>
                <name>name 2</name>
                <bar>
                        <buzz>value 2</buzz>
                </bar>
        </foo>
and a Mapping like:
        (Foo new) name: 'name 1' ; bar: 'value 1'.
or:
        (Foo new) name: 'name 2' ; buzz: 'value 2'.

How can I realized something like this?

3. Binding
Does a complete description of binding specifications exist (all elements, attributes and possible values)?

Thanks in advance!
Steffen Märcker
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Steffen,

I haven't checked in the new Version 7.6 docs, but back when we mapped
some objects to XML there was some documentation in the web services
guide. It is far from being complete, and you are on your own and have
to experiment a bit. This list has shown to be very helpful with
specific questions, including some friendly and helpful advise from
Cincomers. We tried both approaches: building the mapping spec in code
as well as in an xml mapping file. In the end, we decided not to use xml
too much ;-)

I remember having had quite some trouble getting references to work and
heterogeneous collections still are rough, but you can get a lot of
stuff to ork nicely with mappings. Debugging what an xml parser does is
- as with all xml related code no matter which language - simply hell.
But that's not to blame on Cincom or Smalltalk. It's just the bitter
sweet truth about XML parsers... ;-)

Joachim


Steffen Märcker schrieb:

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