Inside of a large schema I have the following complexType: <xs:complexType name="LocationType"> <xs:sequence> <xs:element name="Latitude" type="LatitudeType"/> <xs:element name="Longitude" type="LongitudeType"/> <xs:choice minOccurs="0"> <xs:element name="Altitude" type="AltitudeType"/> <xs:element name="Elevation" type="ElevationType"/> </xs:choice> </xs:sequence> </xs:complexType> Two classes are generated as a result, LocationType and LocationTypeChoice. I want both of these classes to be specified as implementing an interface. I can do LocationType like this: <complexTypeBinding name="LocationType"> <java-class package="other.package.schema"> <implements>some.package.myInterface</implements> </java-class> </complexTypeBinding> I want a mechanism to do this for the LocationTypeChoice class as well.