Re: [eclipselink-users] XML Object Reference Mapping

[Leon Derks <leon.derks@xxxxxxxxxx>]

During debugging I noticed that IndustrialFamily had no primary key 
(code). This was giving the exception.
I could not define a primary key for IndustrialFamily in the workbench. 
Is this currently not supported?

I tried to workaround this problem using afterload methods and doing 
this in Java.

This is my code:

public static void afterFamilyLoader(ClassDescriptor familyDescriptor) {
       familyDescriptor.setJavaClass(IndustrialFamily.class);
       familyDescriptor.addPrimaryKeyFieldName("@code");
   }
  
   public static void afterProductLoader(ClassDescriptor 
productDescriptor) {
       XMLObjectReferenceMapping product = new XMLObjectReferenceMapping();
       product.setAttributeName("industrialFamily");
       product.setReferenceClass(IndustrialFamily.class);
       product.addSourceToTargetKeyFieldAssociation("@familyCode", 
"@code");
       productDescriptor.addMapping(product);
   }

I don't get a stacktrace any more. But now the family is null in my 
Product Object.
Is there still something missing in my mapping?

Leon





Leon Derks wrote:
> Hello
>
> I have a problem (stacktrace) using the XML Object Reference Mapping 
> in the workbench tool from EclipseLink 1.0M6.
>
> This is my xml data:
>
> <CatalogProduct code="123JI" name="BSN Lamp" type="Lamp" 
> familyCode="BSN-BC4H">
>
> .....
>
> </CatalogProduct>
>
> <IndustrialFamilies>
>
>  <IndustrialFamily code="BSN-BC4H" name="Family Lamps" 
> productCategoryCode="Lamps"/>
>
> </IndustrialFamilies>
>
> I mapped this in the workbench as an XML Object Reference with Source 
> Xpath=@familyCode and Target Xpath=@code.
>
> In the eclipselink documentation I read that XML Object Reference is 
> only supported in Java and not in the workbench. Is this still the case?
>
> Running an unmarshall application in Eclipse, results in the following 
> stacktrace:
>
>
> javax.xml.bind.UnmarshalException
>
> - with linked exception:
>
> [java.lang.ArrayIndexOutOfBoundsException: -1]
>
>     at 
> org.eclipse.persistence.jaxb.JAXBUnmarshaller.unmarshal(JAXBUnmarshaller.java:102) 
>
>
>     at 
> com.philips.lighting.research.jaxb.UnmarshallXml.main(UnmarshallXml.java:31) 
>
>
> Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
>
>     at java.util.Vector.setElementAt(Unknown Source)
>
>     at 
> org.eclipse.persistence.oxm.mappings.XMLObjectReferenceMapping.buildReference(XMLObjectReferenceMapping.java:147) 
>
>
>     at 
> org.eclipse.persistence.internal.oxm.XMLObjectReferenceMappingNodeValue.attribute(XMLObjectReferenceMappingNodeValue.java:91) 
>
>
>     at 
> org.eclipse.persistence.oxm.record.UnmarshalRecord.startElement(UnmarshalRecord.java:600) 
>
>
>     at 
> org.eclipse.persistence.internal.oxm.XMLRelationshipMappingNodeValue.processChild(XMLRelationshipMappingNodeValue.java:72) 
>
>
>     at 
> org.eclipse.persistence.internal.oxm.XMLCompositeCollectionMappingNodeValue.startElement(XMLCompositeCollectionMappingNodeValue.java:89) 
>
>
>     at 
> org.eclipse.persistence.oxm.record.UnmarshalRecord.startElement(UnmarshalRecord.java:558) 
>
>
>     at 
> com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown 
> Source)
>
>     at 
> com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown 
> Source)
>
>     at 
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown 
> Source)
>
>     at 
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown 
> Source)
>
>     at 
> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown 
> Source)
>
>     at 
> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown 
> Source)
>
>     at 
> com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown 
> Source)
>
>     at 
> com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown 
> Source)
>
>     at 
> org.eclipse.persistence.internal.oxm.record.XMLReader.parse(XMLReader.java:99) 
>
>
>     at 
> org.eclipse.persistence.internal.oxm.record.SAXUnmarshaller.unmarshal(SAXUnmarshaller.java:216) 
>
>
>     at 
> org.eclipse.persistence.internal.oxm.record.SAXUnmarshaller.unmarshal(SAXUnmarshaller.java:193) 
>
>
>     at 
> org.eclipse.persistence.oxm.XMLUnmarshaller.unmarshal(XMLUnmarshaller.java:274) 
>
>
>     at 
> org.eclipse.persistence.jaxb.JAXBUnmarshaller.unmarshal(JAXBUnmarshaller.java:100) 
>
>
>     ... 1 more
>
>
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