Chris,
If you check the XMLSchema spec: http://www.w3.org/TR/xmlschema-2/#dateTime 3.2.7.1 explains the lexical representation of datetime. This '-'? yyyy '-' mm '-' dd 'T' hh ':' mm ':' ss ('.' s+)? (zzzzzz)? is the production that you can restrict in a derived restriction. If you don't restrict using that production no instance will match it, so you'll have a type with no valid values. As for XMLBeans serializing according to a pattern, it will as long as the instance is a valid instance of the defined type. Also check the definition of pattern: http://www.w3.org/TR/xmlschema-2/#dt-pattern I hope this helps, Cezar _____ From: Chris Hopkins [mailto:chrishopk...@gmail.com] Sent: Tuesday, December 14, 2010 12:10 PM To: user@xmlbeans.apache.org Subject: XMLBeans enforcement of xs:pattern in simple type? Hi all - I'm working with a schema that has the following simple type: <xs:simpleType name="DateTimeGroupType"> <xs:annotation> <xs:documentation>A date time group always in Zulu time.</xs:documentation> </xs:annotation> <xs:restriction base="xs:dateTime"> <xs:pattern value="^(3[0-1]|2[0-9]|1[0-9]|0[1-9])(0[0-9]|1[0-9]|2[0-3])([0-5][0-9])\sZ\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s[0-9]{2}$"/> </xs:restriction> </xs:simpleType> I thought, perhaps naively, that specifying a pattern would force the XMLBeans generated classes to validate against that pattern including producing a String representation conforming to that pattern when I call getStringValue(). This is not the result that I'm getting but perhaps I'm doing something wrong with the definition. Does anyone have any insight or experience doing the same thing? Thanks, Chris
