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Re: [eclipselink-users] XML Object Reference Mapping
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Hello Neil,
Thanks for the support.
We also found out that the workbench.cmd file in 1.0M6 is missing the
line "set CLASSPATH=%CLASSPATH%;%THIS%..\..\jlib\jpa\persistence.jar"
Because without this jar file you wil get an exception when exporting a
Project Deployment XML.
greetz,
Leon
Neil Hauge wrote:
Hi Leon,
We're looking into this. I can tell you that there is a limitation in
the Workbench right now on being able to specify the primary key for
the reference descriptor. The approach you are taking with the
afterload methods appears to be correct. We'll get back to you on
this soon.
Neil
Leon Derks wrote:
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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