- From: Michael Kay <mike@saxonica.com>
- Date: Wed, 19 Jul 2006 19:55:20 +0100
- To: <lists@jeffrafter.com>, "'Paul Kiel'" <paul@hr-xml.org>
- Cc: <xmlschema-dev@w3c.org>
> > Actually, support for redefine is fairly surprising. You mean, the level of support is surprisingly high? Yes, I'm mildly surprised that I support it ;-). > There > are issues that you can run into if you use a strange mix of > namespaces and redefining of chameleon components. In the > general case we have seen a lot of improvement in the past year. > Saxon basically imposes the rule, in managing its schema cache, that once a type has been used then it can't be redefined. Using a type means using it for validating an instance or for compiling a query or stylesheet. This is a bit of a blunt instrument, but it seems to eliminate most of the potential problems. The rule ensures that all references to a type with a given name are referring to the same type. Michael Kay http://www.saxonica.com.
Received on Wednesday, 19 July 2006 18:55:40 UTC