Re: representation of xs:group and xs:attributeGroup, and polymorphic classes

[Robin Sander]

Hello Mike,

I haven't used element-groups or attribute-groups yet, but have
a similar problem: when a schema defines many different named
types (or types in different schemas/namespaces) which all have
identical content it would be great to be able to tell XmlBeans
to use the same class for all those types. Maybe by manually
specifying them in xsdconfig.
Or is this already possible by mapping different QNames to the
same java name? (I havent't tried this yet ... my fault)
Considering your problem: XmlBeans mimics the type hierarchy of
a schema, not the elements, so I think it would not be easy to
map a group of elements to one class.
But I'm not sure about that, maybe a kind of pseudo-type could
be used internally for that purpose.

regards,

Robin.



Mike Skells wrote:

Hi,
I have reposted this due to the underwhelming response :(

Do people think that this is a good idea?

Is it available currently or should I file an RFE?

... Is anyone out there? Mike

    ------------------------------------------------------------------------
    *From:* Mike Skells [mailto:[EMAIL PROTECTED]
    *Sent:* 08 September 2005 14:57
    *To:* dev@xmlbeans.apache.org
    *Subject:* representation of xs:group and xs:attributeGroup, and
    polymorphic classes

    Hi,

I am generating a series of java classes based on schemas which make

    heavy use in groups and attribute groups

Is there any way to get the generated classes to marks and reuse

    this commonallity
    It woudl seem to me that these would map to other interfaces

e.g.

    <xs:complexType name="WorkflowRulesType">
      <xs:complexContent>
        <xs:extension base="local:WorkflowRules-interfaceType">
          <xs:sequence>
            <xs:group ref="local:workflow-content"/>
          </xs:sequence>
          <xs:attributeGroup ref="local:workflow-attributes"/>
        </xs:extension>
      </xs:complexContent>
    </xs:complexType>

    ...

    <xs:complexType name="WorkflowType">
      <xs:complexContent>
        <xs:extension base="local:Workflow-interfaceType">
          <xs:sequence>
            <xs:group ref="local:workflow-content"/>
          </xs:sequence>
          <xs:attributeGroup ref="local:workflow-attributes"/>
         </xs:extension>
      </xs:complexContent>
    </xs:complexType>

    I get a class

public interface WorkflowRulesType extends WorkflowRulesInterfaceType

    and
    public interface WorkflowType extends WorkflowInterfaceType

each with an identical set of methods that relate to the content Wouldnt it be more logical to get

    public interface WorkflowsRulesType extends
    WorkflowsRulesInterfaceType, WorkflowAttributes, WorkflowContent
    public interface WorkflowsType extends WorkflowsRulesInterfaceType,
    WorkflowAttributes, WorkflowContent

Is there a way to get xmlbeans to generate the additional methods to

    aid the polymorphic behaviors

Mike

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