The inheritance model of XML Schema is clearly different from that of Java.
There is no definite way this situation should be mapped; what xjc does is
one way. You are asking for attribute a1 to be generated in the subclasses
X1 and X2: do you mean field int a1 and both getters? Or just the getter so
that the default can be accomodated?
I don't know whether the current implementation of handling eponymous
attribute redefinitions in extensions/restrictions is due to a wilful
decision, or whether it just "happened".
Consider using the inject-code plugin which lets you add arbitrary code to
any generated class.
-W
On Thu, Feb 25, 2010 at 1:04 PM, Anders Hessellund <
anders.hessellund_at_gmail.com> wrote:
> Hi everyone,
>
> I don't mean to be annoying but I never got an answer to the question below
> about attribute inheritance. I am using version 2.1.12. Has support for
> overriding default values been added since? And a related question: If I
> declared an attribute in a supertype and then override it (restrict it) with
> a fixed value in a subtype, why doesn't the generated code reflect this.
>
> If xjc does not support it, is there perhaps a plugin which does?
>
> Thanks,
>
> Anders
>
> On Wed, Sep 23, 2009 at 11:07 AM, Anders Hessellund <
> anders.hessellund_at_gmail.com> wrote:
>
>> Hi,
>>
>> Suppose you have the following schema:
>>
>> <xs:complexType name="XB">
>> <xs:attribute name="a1" type="xs:int"/>
>> <xs:attribute name="a2" type="xs:int" default="2"/>
>> </xs:complexType>
>>
>> <xs:complexType name="X1">
>> <xs:complexContent>
>> <xs:restriction base="XB">
>> <xs:attribute name="a1" type="xs:int" default="11"/>
>> </xs:restriction>
>> </xs:complexContent>
>> </xs:complexType>
>>
>> <xs:complexType name="X2">
>> <xs:complexContent>
>> <xs:restriction base="XB">
>> <xs:attribute name="a1" type="xs:int" default="21"/>
>> </xs:restriction>
>> </xs:complexContent>
>> </xs:complexType>
>>
>> You get the following generated code
>>
>> public class XB {
>> @XmlAttribute
>> protected Integer a1;
>> @XmlAttribute
>> protected Integer a2;
>>
>> public Integer getA1() {
>> return a1;
>> }
>>
>> ...
>>
>> public int getA2() {
>> if (a2 == null) {
>> return 2;
>> } else {
>> return a2;
>> }
>> }
>> ...
>> }
>>
>> public class X1
>> extends XB
>> {
>> }
>>
>> public class X2
>> extends XB
>> {
>> }
>>
>> Why are attributes not generated in the subclasses? Is this a bug? It
>> seems like a fairly trivial thing to do (without knowing anything
>> about the implementation).
>>
>> Cheers,
>>
>> Anders
>>
>> --
>> Anders Hessellund
>> www.itu.dk/people/hessellund/
>>
>
>
>
> --
> Anders Hessellund
> www.itu.dk/people/hessellund/
>