On Tuesday, November 19, 2002, at 06:22 AM, David Bergman wrote:
Hi,As nice as the idea is, there are C++ types that cannot be represented in Java. Just consider templates or multiple inheritance (from two or more base classes where neither can be represented as a Java interface)
This is a comment from the Java corner of the world: I have, as many
other developers using Java, implemented serialization of objects onto
XML. It is not that hard, although there might not exist (can anyone
verify this?) a standardized (more or less...) "C++ Object XML Format".
There are two alternatives:
1. Use an intelligible XML Application (yes, that is what the XML folks
call the specific XML languages, such as XHTML...), giving not only
platform independence (which I assume the serializer module already
achieves...) but language independence, i.e., the object or value can be
unmarshalled, or generated, by a Python program, much in the spirit of
the good old XDR.
2. Embed the binary output of the existing serializer in an XML element.Sure, that is possible but probably not very suitable.
This constrains the XML snippet to this particular serialization
algorithm, including, at least initially, to the C++ language.
I guess another alternative is
3. allow the support of a user-defined schema for his classes with as little constraints as possible. The questions now are: what are the present constraints? I do not know.
Matthias
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