Hi.

In the W3C Recommendation I found following statement:

<< [...]. The fixed attribute is used in both attribute and element
declarations to ensure that the attributes and elements are set to
particular values. For example, po.xsd contains a declaration for the
country attribute, which is declared with a fixed value US. This
declaration means that the appearance of a country attribute in an instance
document is optional [...], although if the attribute does appear, its
value must be US, and if the attribute does not appear, the schema
processor will provide a country attribute with the value US.[...] >> (see
W3C Recommendation, 2 May 2001, XML Schema Part0)

First of all, does Xerces-J v2.x supports/implements this feature?

I'm currently using JDOM v1.0b8 on top of Xerces-J v2.4.0 and every time I
try to get a value of an unset attribute/value which should have a fixed
value, I get a null reference. JDOM uses a
org.apache.xerces.parsers.SAXParser, validation is enabled and feature
http://apache.org.xml.features/validation/schema is true.

The schema processor seams not to work properly. What could be wrong?

Thanks for help/hints.
Andrea Bigger



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