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javaxmljaxbunmarshallingmoxy
Sig Vytec
Sig Vytec

Reputation: 23

Unmarshalling XML elements by attribute name versus tag name

Here's the XML I'm trying to unmarshall:

<eveapi version="2" zkbapi="1">
  <result>
    <rowset name="events">
      <row eventID="41551776" solarSystemID="30003069">
        <pilot characterID="1803362092"/>
        <rowset name="copilots">
          <row characterID="914916227"/>
          <row characterID="877714973"/>
        </rowset>
        <rowset name="items">
          <row typeID="31055"/>
          <row typeID="2048"/>
        </rowset>
      </row>
    </rowset>
  </result>
</eveapi>

I'm having issues unmarshalling the two rowset tags copilots and items (the objects are null after the unmarshall). Also, I have no control over the schema. Below is the class that represents the tag at the eveapi/result/rowset/row level. Event is instantiated by jaxb. Pilot is unmarshalled fine. But I can't get copilots and items to work, they are both null.

@XmlAccessorType(XmlAccessType.FIELD)
@XmlRootElement(name = "row")
public class Event {

    @XmlElement(name = "pilot")
    Pilot pilot;

    @XmlPath("rowset[@name='copilots']")
    Copilots copilots;

    @XmlPath("rowset[@name='items']")
    Items items;

Is what I am doing possible? Thanks!

Upvotes: 2

Views: 272

Answers (1)

bdoughan
bdoughan

Reputation: 149047

To use the @XmlPath annotation you need to be sure you are using EclipseLink JAXB (MOXy) as your JAXB provider. To do this you need to have EclipseLink on your classpath and a jaxb.properties file in the same package as your domain model with the following entry:

javax.xml.bind.context.factory=org.eclipse.persistence.jaxb.JAXBContextFactory

For more information see the following posts on my blog:

Upvotes: 1

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