Hi Steve:

thank you for making us aware of those pointers to
XML related traversal implementations.
I always feel good when others start using ideas
we worked on a while ago.

XPath, indeed supports a subset of our Demeter traversal notation.
More on this is at:

http://www.ccs.neu.edu/research/demeter/technology-transfer/XML/index2.html

So with XPath you can practice some structure-shy programming.

Our AP library 
http://www.ccs.neu.edu/research/demeter/AP-Library/
provides an important component that would be useful
for the Open Source jaxen project.

What the XML world does not seem to be doing yet is to
combine traversals with visitor rather than using
them only as collection devices.

Regards,
-- Karl

From SFraleigh@skyva.com  Wed Aug  1 09:07:34 2001
From: "Steven Fraleigh" <SFraleigh@skyva.com>
To: <lieber@ccs.neu.edu>

Hi Karl,
I just came across this interesting open-source project. Apparently they
have interfaces and some implementation to allow traversal of arbitrary
Java object models, using the
XPath semantics from XSLT.  
Here's the link: http://jaxen.org/
Note there's also a related library located at http://saxpath.org

I was immediately interested in whether and how this might relate to
your work on adaptive programming and structure-shy traversals.

Enjoy! -steven