Hyperjaxb3：如何使用超类的ID？

Question

I'm trying to generate a set of Java classes from *.xsd files that all have a common mapped-super-class (called DataObject). So far I've managed to get it to generate classes that are descendants of DataObject using the following in the bindings.xjb file:

  <jaxb:globalBindings localScoping="toplevel"> <xjc:superClass name="com.companyname.model.DataObject"/> <jaxb:serializable uid="1" /> </jaxb:globalBindings> 

My problem is that Hyperjaxb3 generates its own primary key called hjid, but DataObject already contains a primary key and I need/want to use that.

So, how do I stop Hyperjaxb3 from generating hjid for all classes? I've already tried various suggestions that I've found online, but they didn't work for me.

Answer 1

You or mark one of existing properties as identifier property using the hj:id customization element. See following:

<xs:complexType name="myType">
    <xs:sequence>
        <!-- ... -->
        <xs:element name="id" type="xs:int" minOccurs="0">
            <xs:annotation>
                <xs:appinfo>
                    <hj:id>
                        <orm:column name="MY_ID"/>
                        <orm:generated-value strategy="SEQUENCE" generator="my-sequence"/>
                        <orm:sequence-generator name="my-sequence" sequence-name="MY_SEQ"/>
                    </hj:id> 
                </xs:appinfo>
            </xs:annotation>
        </xs:element>
        <!-- ... -->
    </xs:sequence>
</xs:complexType>

OR

<xs:element name="id" type="xs:int" minOccurs="0">
    <xs:annotation>
        <xs:appinfo>
            <hj:id/>
        </xs:appinfo>
    </xs:annotation>
</xs:element>