To: Weinreb
Subject: Data Binding JSR 31 and Demeter
Cc: jsr-031-comments@sun.com

Dear Dan:

with pleasure I saw you on the 
XML Data Binding Specification list of JSR 31 endorsers.

I have read the document: An XML Data-Binding Facility for the Java Platform
and I find such an approach excellent. No wonder :-) it almost
looks like putting Demeter into Java 2.

We have used such an approach for over 10 years but for a generalization
of XML.  Our tools handle conceptually a good subset of XML as a special case
(we use a different syntax).
We have been focussing on LL(1) languages which are a generalization
of markup languages.

We have a family of schema compilers: for Java, C++, CLOS, Perl.
And we have a marshalling-unmarshalling solution for Java and C++
that works not only for markup languages.

http://www.ccs.neu.edu/research/demeter/releases/

points to the Java source code we have. It is open source.

Our schema compiler also provides a naviagtion language
a la XPath (but more powerful) that makes 
navigation through XML documents easier.

This navigation language is supported by the visitor generation
capabilities of the schema compiler.

Our schema compiler and marshalling/unmarshalling facilities have been
used by thousands of students. The experience is very positive.
More info is at: http://www.ccs.neu.edu/research/demeter

For a comparison of Demeter and XML, see:
http://www.ccs.neu.edu/research/demeter/technology-transfer/XML/index2.html
(see last entry)

I was wondering what the status of JSR 31 is and whether input from
our project is desired.

Best regards,
-- Karl