From: Don Walling <dwalling_at_adobe.com>
Date: Tue, 29 May 2007 16:29:57 -0700

I'm updating an application from JAXB 1.0 to 2.1 and getting the error
"There's no ObjectFactory with an @XmlElementDecl for..." error on a
variety of methods. The issue seems to be related the use of implClass
in the bindings file. I'm wondering if there might be a bug in the
portion of XJC that creates the ObjectFactory method.
 
The bindings looks like:
 <jaxb:bindings node="//xs:complexType[@name='PDFResultType']">
  <jaxb:class implClass="com.adobe.internal.ddxm.ddx.pdf.PDFResult"/>
 </jaxb:bindings>
 <jaxb:bindings node="//xs:complexType[@name='TitleType']">
  <jaxb:class implClass="com.adobe.internal.ddxm.ddx.metadata.Title"/>
 </jaxb:bindings>
 
The TitleType is used in within several complexType elements in the
schema, including the PDFResultType, so the generated method in
ObjectFactory
looks like:
 
    @XmlElementDecl(namespace = "http://ns.adobe.com/DDX/1.0/", name =
"Title", scope = PDFResult.class)
    public JAXBElement<TitleType> createPDFResultTypeTitle(TitleType
value) {
        return new JAXBElement<TitleType>(_PackageFilesTypeTitle_QNAME,
((Class) Title.class), PDFResult.class, ((Title) value));
    }
 
This yields the error "There's no ObjectFactory with an @XmlElementDecl
for the element {http://ns.adobe.com/DDX/1.0/}Title." at runtime while
parsing the XML.
 
I get further by hand-editing the generated code to use
PDFResultType.class base class that JAXB generates rather than the
implClass as follows:
    @XmlElementDecl(namespace = "http://ns.adobe.com/DDX/1.0/
<http://ns.adobe.com/DDX/1.0/> ", name = "Title", scope =
PDFResultType.class)
    public JAXBElement<TitleType> createPDFResultTypeTitle(TitleType
value) {
        return new JAXBElement<TitleType>(_PackageFilesTypeTitle_QNAME,
((Class) Title.class), PDFResultType.class, ((Title) value));
    }
The above code - changing PDFResult.class to PDFResultType.class -
seems to work (or at least I get past that error and on to the next). Is
this a problem in XJC or have I overlooked some configuration setting
that controls use of the base class verses the implClass in the
generated ObjectFactory? Or, is this just a symptom of some other issue?
 
Thanks,
Don