Jaxb+；使用xsd:choice生成xjc代码

我们已经获得了一个XSD文档，该文档将两个应用程序之间的数据传输格式指定为XML文档。映射不是我想要的那样，我想用一个自定义的

.xjb

映射文件对其进行自定义

xsd如下所示

<xsd:complexType name="selection">
    <xsd:choice minOccurs="1" maxOccurs="unbounded">
        <xsd:element name="area" type="area"/>
        <xsd:element name="range" type="range"/>
        <xsd:element name="exact" type="exact"/>
    </xsd:choice>
</xsd:complexType>
<xsd:simpleType name="area">
    <xsd:restriction base="xsd:string">
        <xsd:pattern value="[0-9]{2}"/>
    </xsd:restriction>
</xsd:simpleType>
<xsd:simpleType name="range">
    <xsd:restriction base="xsd:string">
        <xsd:pattern value="[0-9]{2}-[0-9]{2}"/>
    </xsd:restriction>
</xsd:simpleType>
<xsd:simpleType name="exact">
    <xsd:restriction base="xsd:string">
        <xsd:pattern value="[0-9]{5}"/>
    </xsd:restriction>
</xsd:simpleType>

最好，我希望它能产生类似

public class Selection {
    protected List<Exact> exacts;
    protected List<Area> areas;
    protected List<Range> ranges;
    ...
}

我可以在不修改原始XSD的情况下实现这一点吗

public class Selection {
    protected List<Exact> exacts;
    protected List<Area> areas;
    protected List<Range> ranges;
    ...
}

public class Selection {

    @XmlElementRefs({
        @XmlElementRef(name = "exact", type = Exact.class),
        @XmlElementRef(name = "range", type = Range.class),
        @XmlElementRef(name = "area", type = Area.class)
    })
    protected List<SelectionType> selection;
    ...
}