[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re:question: NodeIterator in DOM
At 11:19 AM 5/15/98 -0400, Akitoshi Yoshida wrote: >in example: >we have nodes A B C D E. >the iterator is positioned just before C. >remove C, D, and B. >then we have A E and the iterator position should be >positioned just before E. >so toNextNode() and toPrevNode() should return E and A, respectively. Yes. > >NodeIterator may mark its current iterator position by >an integer offset or by an object reference. but it must >be notified for certain insert and remove operations to >preserve the above semantics. Is it correct? I'm not sure. There's been a lot of discussion of how to implement NodeIterators on www-dom; see the archives at http://lists.w3.org/Archives/Public/www-dom/ I believe different designs exist, some of which require iterators to be notified on insert and delete operations, and others which maintain "markers" in the tree that move around as the tree is edited. I have not followed this closely enough to give you a definitive answer, but look at the www-dom archives, and especially Don Park's SAXDOM implementation, because Don participated in the discussions of this a couple of weeks ago and I believe his latest release reflects what he learned. Good luck, Mike xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
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