fixed attribute values in Schemas

[LKirschner@vencast.com]

I am having problems with Schemas and fixed attribute values. In my
instance documents, fixed attributes defined in my Schema do not seem to be
defined.

I am using the SAX parser from apache xerces-1-2-3, which is supposed to
support fixed and default attributes.

I define an element java.sql.Date with the fixed attribute 'pattern':

<element name="java.sql.Date"  >
     <complexType>
          <simpleContent>
               <extension base="date" >
                    <attribute name="pattern" type="string" use="fixed"
value="yyyy-MM-dd" />
               </extension>
          </simpleContent>
     </complexType>
</element>


...then a test instance document with a java.sql.Date element:

<?xml version="1.0"?>
<db_bean xmlns="http://schemahost/xml/namespaces/db_bean"
     xmlns:xsi="http://www.w3.org/2000/10/XMLSchema-instance"
     xsi:schemaLocation="http://schemahost/xml/namespaces/db_bean
     db_bean.xsd"
     class="com.vencast.bean.db.DealComponent" >
     <property name="lastUpdateDate" >
          <java.sql.Date>2000-01-02</java.sql.Date>
     </property>
</db_bean>

...but when I parse the document it has no attributes.


Thank you in advance for your help,

I am putting the full schema below in case that is part of the problem.

--Larry



<schema xmlns="http://www.w3.org/2000/10/XMLSchema"
        targetNamespace="http://schemahost/xml/namespaces/db_bean"
        elementFormDefault="qualified"
        xmlns:dbb="http://schemahost/xml/namespaces/db_bean">
     <element name="db_bean">
        <complexType>
               <annotation>
                    <documentation></documentation>
               </annotation>
               <sequence>
                    <element name="property" minOccurs="0" maxOccurs
="unbounded" >
                         <complexType>
                              <choice>
                                   <element name="java.lang.Boolean" type
="boolean" />
                                   <element name="java.lang.Byte" type
="byte" />
                                   <element name="java.sql.Date"  >
                                         <complexType>
                                              <simpleContent>
                                                   <extension base="date" >
                                                        <attribute name
="pattern" type="string" use="fixed" value="yyyy-MM-dd" />
                                                   </extension>
                                              </simpleContent>
                                         </complexType>
                                   </element>
                                   <element name="java.lang.Double" type
="double" />
                                   <element name="java.lang.Float" type
="float" />
                                   <element name="java.lang.Integer" type
="integer" />
                                   <element name="java.lang.Long" type
="long" />
                                   <element name="java.lang.Short" type
="short" />
                                   <element name="java.lang.String" type
="string" />
                                   <element name="java.sql.Time" >
                                         <complexType>
                                              <simpleContent>
                                                   <extension base="time" >
                                                        <attribute name
="pattern" type="string" use="fixed" value="yyyy-MM-ddHH:mm:ss.SS0" />
                                                        <attribute name
="zero_epoch" type="string" use="fixed" value="1970-01-01" />
                                                   </extension>
                                              </simpleContent>
                                         </complexType>
                                   </element>
                                   <element name="java.sql.Timestamp"  >
                                         <complexType>
                                              <simpleContent>
                                                   <extension base
="timeInstant" >
                                                        <attribute name
="pattern" type="string" use="fixed" value="yyyy-MM-ddTHH:mm:ss-SS-00" />
                                                   </extension>
                                              </simpleContent>
                                         </complexType>
                                   </element>
                              </choice>
                              <attribute name="name" use="required" >
                                   <simpleType>
                                         <restriction base="string" >
                                              <pattern value="[a-z|A-Z|_]
[\w|_]*" >
                                                   <annotation>

<documentation>java_names must follow Java class naming rules: the first
character must be a letter or '_'; the characters that follow may be
letters, '_', or numbers</documentation>
                                                   </annotation>
                                              </pattern>
                                         </restriction>
                                   </simpleType>
                              </attribute>
                         </complexType>
                    </element>
               </sequence>
               <attribute name="class" use="required" >
                    <simpleType>
                         <restriction base="string" >
                              <pattern value="[a-z|A-Z|_][\w|_|.]*" >
                                   <annotation>
                                         <documentation>java_names must
follow Java class naming rules: the first character must be a letter or '
_'; the characters that follow may be letters, '_', or numbers. Periods can
be used for package delimitation: ie com.vencast.SomeClass</documentation>
                                   </annotation>
                              </pattern>
                         </restriction>
                    </simpleType>
               </attribute>
          </complexType>
     </element>
</schema>