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Re: [eclipselink-users] case problem in OXM project with eclipselink 1.0.2
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Hi Senthil,
The descriptor QName in XMLContext is built based on the information
provided in the mappings .xml file generated by the workbench. If the
workbench is showing the default-root-element for your descriptor as
"Tag", but the generated mappings file has it as "tag" this may be a bug.
If you'd like, you can send me your deployment.xml/sessions.xml and your
schema etc, and I'll take a closer look at it.
-Matt
senthilkumar_ks wrote:
Hi
I have a weird problem when settingup a OXM project. I have a simple Java
model which stores the "tags" for a particular document. So, the DB model
would look like
Doc id -> Tags (1 to many )
So, I create a OXM project as detailed
http://www.oracle.com/technology/products/ias/toplink/technical/tips/ox/index.htm
here based on the java objects. I also created a Schema document for this
which would be
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema";
elementFormDefault="qualified" attributeFormDefault="unqualified">
<xs:element name="Tag">
<xs:complexType>
<xs:sequence>
<xs:element name="Phrase" type="xs:string"/>
<xs:element name="DocId" type="xs:string" />
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>
After I am done creating the project, sessions etc. I create a TestClient
and unmarshall an instance document like this
<Tag xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:noNamespaceSchemaLocation="Tag.xsd">
<Phrase>java</Phrase>
<DocId>docId</DocId>
</Tag>
which fails with an exception stack trace
javax.xml.bind.UnmarshalException
- with linked exception:
[Exception [EclipseLink-25008] (Eclipse Persistence Services - 1.0.2 (Build
20081024)): org.eclipse.persistence.exceptions.XMLMarshalException
Exception Description: A descriptor with default root element Tag was not
found in the project]
at
org.eclipse.persistence.jaxb.JAXBUnmarshaller.unmarshal(JAXBUnmarshaller.java:289)
at
com.proquest.services.tags.model.TagsOXMClient.testOXM(TagsOXMClient.java:28)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at junit.framework.TestCase.runTest(TestCase.java:168)
at junit.framework.TestCase.runBare(TestCase.java:134)
at junit.framework.TestResult$1.protect(TestResult.java:110)
at junit.framework.TestResult.runProtected(TestResult.java:128)
at junit.framework.TestResult.run(TestResult.java:113)
at junit.framework.TestCase.run(TestCase.java:124)
at junit.framework.TestSuite.runTest(TestSuite.java:232)
at junit.framework.TestSuite.run(TestSuite.java:227)
at
org.junit.internal.runners.OldTestClassRunner.run(OldTestClassRunner.java:76)
at
org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:45)
at
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
Caused by: Exception [EclipseLink-25008] (Eclipse Persistence Services -
1.0.2 (Build 20081024)):
org.eclipse.persistence.exceptions.XMLMarshalException
Exception Description: A descriptor with default root element Tag was not
found in the project
at
org.eclipse.persistence.exceptions.XMLMarshalException.noDescriptorWithMatchingRootElement(XMLMarshalException.java:125)
at
org.eclipse.persistence.internal.oxm.record.SAXUnmarshallerHandler.startElement(SAXUnmarshallerHandler.java:197)
at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:501)
at
com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:400)
at
com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl$NSContentDriver.scanRootElementHook(XMLNSDocumentScannerImpl.java:626)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:3088)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:914)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:647)
at
com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:140)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:508)
at
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:807)
at
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
at
com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:107)
at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1132)
at
com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:533)
at
org.eclipse.persistence.internal.oxm.record.XMLReader.parse(XMLReader.java:103)
at
org.eclipse.persistence.internal.oxm.record.SAXUnmarshaller.unmarshal(SAXUnmarshaller.java:564)
at
org.eclipse.persistence.internal.oxm.record.SAXUnmarshaller.unmarshal(SAXUnmarshaller.java:478)
at
org.eclipse.persistence.oxm.XMLUnmarshaller.unmarshal(XMLUnmarshaller.java:448)
at
org.eclipse.persistence.jaxb.JAXBUnmarshaller.unmarshal(JAXBUnmarshaller.java:276)
... 20 more
I tried debugging and found that the descriptorQName created in
org.eclipse.persistence.oxm.XMLContext is a tag and not a Tag (Note the case
change). So, I changed my instance document to this
<?xml version="1.0" encoding="UTF-8"?>
<tag xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:noNamespaceSchemaLocation="Tag.xsd">
<phrase>asdfasfd</phrase>
</tag>
and I am able to Unmarshall it successfully.
Can anybody explain this for me?
Regards
Senthil
