JAXB: Unmarshalling does not always populate certain classes?
- by user278458
Hello,
I have a JAXB class generation problem I was hoping to get some help with. Here's the part of the XML that is the source of my problem...
Code:
<xs:complexType name="IDType">
<xs:choice minOccurs="0" maxOccurs="2">
<xs:element name="DriversLicense" minOccurs="0" maxOccurs="1" type="an..35" />
<xs:element name="SSN" minOccurs="0" maxOccurs="1" type="an..35" />
<xs:element name="CompanyID" minOccurs="0" maxOccurs="1" type="an..35" />
</xs:choice>
</xs:complexType>
<xs:simpleType name="an..35">
<xs:restriction base="an">
<xs:maxLength value="35" />
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="an">
<xs:restriction base="xs:string">
<xs:pattern value="[ !-~]*" />
</xs:restriction>
</xs:simpleType>
...now this will generate JAXBElement types due the the "choice" with a "maxOccurs 1" . I want to avoid those, so I did that by modifying the code to use a "Wrapper" element and move the maxOccurs up to a sequence tag as follows...
Code:
<xs:complexType name="IDType">
<xs:sequence maxOccurs="2">
<xs:element name=Wrapper>
<xs:complexType>
<xs:choice>
<xs:element name="DriversLicense" minOccurs="0" maxOccurs="1" type="an..35" />
<xs:element name="SSN" minOccurs="0" maxOccurs="1" type="an..35" />
<xs:element name="CompanyID" minOccurs="0" maxOccurs="1" type="an..35" />
</xs:choice>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
<xs:simpleType name="an..35">
<xs:restriction base="an">
<xs:maxLength value="35" />
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="an">
<xs:restriction base="xs:string">
<xs:pattern value="[ !-~]*" />
</xs:restriction>
</xs:simpleType>
For class generating, looks like it works great - the JAXB element is replaced with a list of wrappers as String (i.e. List ) and compiles fine.
However, when I unmarshall the actual XML data into the generated classes the data in the wrapper class is not populated - yet JAXB does not throw an exception.
My question is: Do I need to change the schema a different way to make this work? Or is there something I can add/change/delete to the generated code or annotations?
Appreciate any help you can offer!
Thanks.
