我正尝试在Amazon XSD OrderFulfillment.xsd之后构建xml，xsd文件中有此特定部分可供选择

<xsd:choice>
<xsd:element name="CarrierCode" type="String"/>
<xsd:element name="CarrierName" type="String"/>
</xsd:choice>

我不确定如何使用Javax来表示它，这是我到目前为止所掌握的：

@XmlaccessorType(XmlaccessType.FIELD)
    @XmlType(name = "",propOrder = {
            "carrierCode","carrierName","shippingMethod","shipperTrackingNumber"
        })
    public static class FulfillmentData {
        @XmlElement(name = "CarrierCode")
        private String carrierCode;
        @XmlElement(name = "CarrierName")
        private String carrierName;