CODEWITHSUNDEEP
xmlnamespacesjaxbunmarshalling
c4k
c4k

Reputation: 4476

JAXB Use default namespace

I'm currently working on marshalling/unmarshalling XML messages. Here are my two XML elements :

@XmlRootElement(namespace = "http://namespaceA")
public class RootElementA {

    @XmlElement
    private ElementXX elementXX;

}

@XmlRootElement(namespace = "http://namespaceB")
public class RootElementB {

    @XmlElement
    private ElementXX elementXX;

}

When unmarshalling a RootElementB I have the following error :

javax.xml.bind.UnmarshalException: unexpected element (uri:"http://namespaceB", local:"ElementXX"). Expected elements are <{}ElementXX>

If I add the namespace to the ElementXX declaration, I have the same error except that it occurs for properties of ElementXX.

The problem is that I can't set the namespace on properties of ElementXX because it is specified in both namespaces and I don't want to duplicate my class just to change the namespace...

Do you have an idea ? Thanks.

EDIT

Here is a XML sample :

<RootElementA xmlns="http://namespaceA">
    <ElementXX>
        <name>blabla</name>
        <desc>blabla</desc>
    </ElementXX>
</RootElementA>

If I don't set a namespace to ElementXX in XmlRootElementA class I have the error above. If I set it, I have the same error but for the name property.

Upvotes: 2

Views: 6022

Answers (3)

bdoughan
bdoughan

Reputation: 149057

You can use the @XmlSchema annotation to specify the namespace qualification for classes and properties within a package. You can specify the namespace for the properties of a class by specifying the namespace on @XmlType. Then you can specify the namespace for a so single element/attribute using @XmlRootElement, @XmlElement, and @XmlAttribute.

For More Information

Upvotes: 0

W Almir
W Almir

Reputation: 666

You can remove the @XmlElement annotation for ElementXX. As long as it has a public getter, default behavior is to marshal it as well.

The XML should then look like this.

<ns3:rootElementB xmlns:ns2="http://namespaceA" xmlns:ns3="http://namespaceB">
    <elementXX/>
</ns3:rootElementB>

An alternative is to declare the namespace of ElementXX in its java class using @XmlRootElement similar to RootElementA and B. Then replacing @XmlElement with @XmlElementRef in RootElementA and B.

XML would then look like this: (Note: I added the field name for the test)

<ns4:rootElementB xmlns:ns2="http://namespaceXX" xmlns:ns3="http://namespaceA" xmlns:ns4="http://namespaceB">
    <ns2:elementXX>
        <name>test</name>
    </ns2:elementXX>
</ns4:rootElementB>

I was not able to exactly reproduce your error. I think, however, that having ElementXX declared in two namespaces is not advisable, to say the least. If you can modify your Schemas, I suggest creating a new one with its own namespace and declaring ElementXX in it. Then modify the other two to reference its elements.

Upvotes: 1

pappu_kutty
pappu_kutty

Reputation: 2488

you didnt have xml here to have a look.. but i guess the below link will give you an answer.

XML unmarshalling using Jaxb with namespaces and schema

if not post the xml you are trying to unmarshall.

Upvotes: 0

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