This behavior is normal and spec-compliant.  See the examples at:
http://www.w3.org/TR/DOM-Level-2/traversal.html#Iterator-Moving


Chih-Hsiang Chou
IBM Center for Java Technology - Silicon Valley
[EMAIL PROTECTED]

----- Original Message ----- 
From: <[EMAIL PROTECTED]>
To: "Xerces-Dev (E-Mail)" <[EMAIL PROTECTED]>
Sent: Friday, February 25, 2000 7:24 AM
Subject: [Xerces-J] NodeIteratorImpl behavior


The NodeIteratorImpl class implements some strange behavior:

when you iterate the nodes using nextNode(), the first call of
previousNode() returns the same node as the last nextNode() call did.

This unexpected bahavior is only described in the source code and not
mentioned in the javadoc documentation (it is really hard to find). It
is unexpected too, if you rely on the documentation of
org.w3c.dom.traversal.NodeIterator .

I learned that it is caused by the fCurrentNode pointer which is being
_between_ two nodes. Is there a special reason that fCurrentNode does
point between two nodes (instead directly on the last returned node,
which would cause a more intuitive behavior)?

Ciao, Bens.
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