Validation of boolean values and javaType

Hi,

I have a RESTeasy driven REST API and would like to be able to return an error message whenever an invalid value for a boolean element is received. For instance, given the following type:

    <xs:complexType name="aType">
        <xs:complexContent>
            <xs:element name="aBoolean" type="xs:boolean" minOccurs="1" maxOccurs="1" />
        </xs:complexContent>
    </xs:complexType>

When receiving the following message body:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<aTypeid="1">
    <aBoolean>nonsense</aBoolean>
</aType>

If the value of aBoolean is not one of either true or false i would like to be able to return an error message stating that the value of the boolean element isn't valid.

To do this i've tried adding a data converter for boolean types. Something along the lines of:

    <xs:annotation>
        <xs:appinfo>
                        <jaxb:bindings node="/xs:schema/xs:complexType[@name='aType']/xs:complexContent/xs:element[@name='aBoolean']">
                          <jaxb:property>
                            <jaxb:baseType>
                              <jaxb:javaType name="boolean" parseMethod="net.my.converter.BooleanConverter.parseBoolean"/>
                            </jaxb:baseType>
                          </jaxb:property>
                        </jaxb:bindings>
        </xs:appinfo>
    </xs:annotation>

This seems ok except for the fact that in the generated class the type of 'aBoolean' has changed from being the primitive boolean to the class Boolean. This means that upon creation of an instance of AType, ABoolean has a null value and the method call isABoolean() can return null.

This change from the primitive boolean to the class Boolean fundamentally changes the behaviour of the generated methods.

Is my approach the best way of validating element values that are mapped to a primitive? If so, what should i do about the change of type in the generated classes?

Thanks for your help,

Tim