Question

In my schema I have some types that simply extend a simple XSD type (int or string). JAXB creates a separate java class per such type. I want to drop this intermediate class and configure JAXB to use primitives where possible (e.g. substitute CountryType with java.lang.String and DocumentType with int or lava.lang.Integer). For example, for a given XSD it would be nice to have DestinationType.setDocumentType(int) and List<String> StatesType.getCountry(). I am happy to write type-wide an adapter for that, but it looks like only conversions from primitive XML types are supported. Maybe it is possible to make per-property type conversion? Please, give any example of JAXB binding customization, that can help.

<?xml version="1.0" encoding="UTF-8"?>
<schema
    xmlns="http://www.w3.org/2001/XMLSchema"
    xmlns:exch="http://www.mycompany.org/exchange"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    targetNamespace="http://www.mycompany.org/exchange"
    elementFormDefault="qualified" attributeFormDefault="unqualified">

    <complexType name="countryType">
        <simpleContent>
            <extension base="string"/>
        </simpleContent>
    </complexType>

    <complexType name="statesType">
        <sequence maxOccurs="unbounded">
            <element name="country" type="exch:countryType"/>
        </sequence>
    </complexType>

    <complexType name="documentType">
        <simpleContent>
            <extension base="integer"/>
        </simpleContent>
    </complexType>

    <complexType name="destinationType">
        <sequence>
            <element name="states" type="exch:statesType" maxOccurs="1"/>
            <element name="document-type" type="exch:documentType" minOccurs="1" maxOccurs="1"/>
        </sequence>
    </complexType>
</schema>

Answer 1

Another possibility, can you change your schema?:

The following schema change will generate your desired object model.

Use:

<simpleType name="documentType">
    <restriction base="integer"/>
</simpleType>

Instead of:

<complexType name="documentType"> 
    <simpleContent> 
        <extension base="integer"/> 
    </simpleContent> 
</complexType>