- From: Rick Jelliffe <ricko@allette.com.au>
- Date: Tue, 24 Jul 2001 15:57:35 +0800
- To: <xml-dev@lists.xml.org>, <www-xml-blueberry-comments@w3.org>
From: "Elliotte Rusty Harold" <elharo@metalab.unc.edu> > That would be a naive approach. DOM could easily be implemented so this was not an issue. For example, give every element, attribute, and processing instruction a boolean usesBlueberry flag. Then have the document keep a reference count of the number of Blueberry items in the document that could be incremented and decremented as nodes were added to the document. "Could be" does not equal "will be". The developer will still need to check out whether the DOM is blueberry-capable. And, in any case, the DOM might be implemented as an access layer on an existing database, which does not have such a flag. In such cases, the naive approach is the only one practical. In any case, the cost of having flags (or a collective count) updated during every write may be greater than that of doing two passes, surely. It depends on the access patterns. Cheers Rick Jelliffe
Received on Tuesday, 24 July 2001 01:55:12 UTC