JAXB: How to suppress surrounding XmlElement when using XmlJavaTypeAdapter?

Question

I use @XmlJavaTypeAdapter to transform Map objects into List when marshalling (and vice versa when u

Answer 1

Note: I'm the EclipseLink JAXB (MOXy) lead and a member of the JAXB (JSR-222) expert group.

You could use the @XmlPath(".") extension in MOXy to map this use case. Specifying "." as the path indicates that the contents of the child should be written into the parent objects element.

import java.util.HashMap;
import javax.xml.bind.annotation.*;
import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
import org.eclipse.persistence.oxm.annotations.XmlPath;

@XmlRootElement
@XmlAccessorType(XmlAccessType.FIELD)
public class Foo {

    @XmlJavaTypeAdapter(MyMapItemAdapter.class)
    @XmlPath(".")
    Map<String, MapItem> map = new TreeMap<String, MapItem>();       

}

Full Example

• JAXB marshal an ArrayList created by XmlAdapter

For More Information

• http://blog.bdoughan.com/2010/07/xpath-based-mapping.html
• http://blog.bdoughan.com/2011/05/specifying-eclipselink-moxy-as-your.html