Question

I have a schema defined as this:

<complexType name="x">
    <sequence>
        <element name="year" type="date"/>
            <choice>
                <element name="comuneNascita" type="string" nillable="true"/>
                <element name="statoNascita" type="string" nillable="true"/>
             </choice>
    </sequence>
</complexType>

When I try to marshall the class generated with xjc ( with xjc:simple option ) and I get this result:

[...]
<statoNascita xsi:nil="true"/>
<comuneNascita>xxx</comuneNascita>
[...]

Removing nillable="true" solve this problem but then I have to specify a valid element ( not nilled ).

Any workaround?

Answer 1

You can avoid your problem by having a property annotated as follows:

@XmlElements({
   @XmlElement(name="comuneNascita", type=String.class),
   @XmlElement(name="statoNascita", type=String.class),
})

You can get XJC to generate a property annotated as above using a JAXB bindings file:

<?xml version="1.0" encoding="UTF-8"?>
<bindings xmlns="http://java.sun.com/xml/ns/jaxb"
          version="2.1">
    <globalBindings choiceContentProperty="true"/>
</bindings> 

For More Information

• http://bdoughan.blogspot.com/2011/04/xml-schema-to-java-xsd-choice.html