Override JAXB annotation Mapping with MOXY oxm binding file

问题

I'm trying to implement two differents mappings for certains of my objects.

The first mapping is done using JAXB annotations on my classes. It's working fine.

The second mapping is really simple : it should take every Java attribute. To do this I wrote a very simple xml bindings file :

<?xml version="1.0"?>
<xml-bindings xmlns="http://www.eclipse.org/eclipselink/xsds/persistence/oxm"
package-name="com.foo" xml-mapping-metadata-complete="true">
<java-types>
    <java-type name="com.foo.OverridedMappingClass" xml-accessor-type="FIELD">
    </java-type>
    <java-type name="com.foo.OverridedMappingClass2" xml-accessor-type="FIELD">
    </java-type>
</java-types>
</xml-bindings>

The problems come when I try to initialize the JAXBContext :

    Map<String, Object> props = new HashMap<String, Object>();
    List<String> bindings = new ArrayList<String>();
    bindings.add("com/bindings/bindings-foo.xml");
    props.put(JAXBContextProperties.OXM_METADATA_SOURCE, bindings);
    try
    {
        jaxbContext = JAXBContext.newInstance(new Class[] { OverridedMappingClass, OverridedMappingClass2}, props);
    }
    catch (JAXBException e)
    {
        m_logger.error("Could not build the JAXBContext", e);
    }

The following Exception occurres

javax.xml.bind.JAXBException: 24
 - with linked exception:
[java.lang.ArrayIndexOutOfBoundsException: 24]
at org.eclipse.persistence.jaxb.JAXBContext$TypeMappingInfoInput.createContextState(JAXBContext.java:1059)
at org.eclipse.persistence.jaxb.JAXBContext.<init>(JAXBContext.java:182)
at org.eclipse.persistence.jaxb.JAXBContextFactory.createContext(JAXBContextFactory.java:165)
at org.eclipse.persistence.jaxb.JAXBContextFactory.createContext(JAXBContextFactory.java:152)
at org.eclipse.persistence.jaxb.JAXBContextFactory.createContext(JAXBContextFactory.java:112)
at org.eclipse.persistence.jaxb.JAXBContextFactory.createContext(JAXBContextFactory.java:102)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:211)
at javax.xml.bind.ContextFinder.find(ContextFinder.java:340)
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:574)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 24
at org.eclipse.persistence.internal.libraries.asm.Type.getType(Unknown Source)
at org.eclipse.persistence.internal.libraries.asm.Type.getArgumentTypes(Unknown Source)
at org.eclipse.persistence.internal.libraries.asm.MethodWriter.visitMaxs(Unknown Source)
at org.eclipse.persistence.jaxb.compiler.MappingsGenerator.generateMapEntryClass(MappingsGenerator.java:2003)
at org.eclipse.persistence.jaxb.compiler.MappingsGenerator.generateMapEntryClassAndDescriptor(MappingsGenerator.java:1941)
at org.eclipse.persistence.jaxb.compiler.MappingsGenerator.generateCompositeCollectionMapping(MappingsGenerator.java:2125)
at org.eclipse.persistence.jaxb.compiler.MappingsGenerator.generateMapping(MappingsGenerator.java:798)
at org.eclipse.persistence.jaxb.compiler.MappingsGenerator.generateMappings(MappingsGenerator.java:2464)
at org.eclipse.persistence.jaxb.compiler.MappingsGenerator.generateMappings(MappingsGenerator.java:2424)
at org.eclipse.persistence.jaxb.compiler.MappingsGenerator.generateProject(MappingsGenerator.java:246)
at org.eclipse.persistence.jaxb.compiler.Generator.generateProject(Generator.java:188)
at org.eclipse.persistence.jaxb.JAXBContext$TypeMappingInfoInput.createContextState(JAXBContext.java:1064)
at org.eclipse.persistence.jaxb.JAXBContext$TypeMappingInfoInput.createContextState(JAXBContext.java:1056)
... 19 more

For information : The classes OverridedMappingClass extend an abstract class from another package. This abstract class is JAXB annotated, how should I manage it ? Do I have to write an XML for every package where a mapped class exists or is there a way to regroup it in the same file ?

I'm using the 3 following bundles from eclipseLink-plugins

org.eclipse.persistence.asm_3.3.1.v201302191223.jar
org.eclipse.persistence.core_2.6.0.v20130912-6b5e067.jar
org.eclipse.persistence.moxy_2.6.0.v20130912-6b5e067.jar

Any help is welcomed !

回答1:

You could do the following:

External mapping file (bindings-foo.xml):

<?xml version="1.0"?>
<xml-bindings xmlns="http://www.eclipse.org/eclipselink/xsds/persistence/oxm"
    package-name="com.foo" xml-mapping-metadata-complete="true">
    <java-types>
        <java-type name="OverridedMappingClass"
            xml-accessor-type="FIELD">
        </java-type>
        <java-type name="OverridedMappingClass2"
            xml-accessor-type="FIELD">
        </java-type>
    </java-types>
</xml-bindings>

Code to create JAXBContext on external mapping file:

    Map<String, Object> props = new HashMap<String, Object>(1);
    props.put(JAXBContextProperties.OXM_METADATA_SOURCE, "com/bindings/bindings-foo.xml");
    try
    {
        jaxbContext = JAXBContext.newInstance(new Class[] { OverridedMappingClass, OverridedMappingClass2}, props);
    }
    catch (JAXBException e)
    {
        m_logger.error("Could not build the JAXBContext", e);
    }

来源：https://stackoverflow.com/questions/20525192/override-jaxb-annotation-mapping-with-moxy-oxm-binding-file

标签

xml

jaxb

marshalling

moxy