From: murakris <cme_mk_at_yahoo.com>
Date: Sat, 23 Aug 2008 19:39:02 -0700 (PDT)

Hi, I'm trying to follow the XmlAdapter example in Koshuke's blog here:
http://weblogs.java.net/blog/kohsuke/archive/2005/04/xmladapter_in_j.html

and when I try to marshall the Brochure class, it results in xml output like
this:
<brochure>
    <course>
        <item id="c0">
            <name>Course 0</name>
        </item>
        <item id="c1">
            <name>Course 1</name>
        </item>
    </course>
</brochure>

instead of
<brochure>
        <course id="c0">
            <name>Course 0</name>
        </item>
        <course id="c1">
            <name>Course 1</name>
        </item>
</brochure>

Can you please help me understand what I'm doing wrong? Below is the rest of
the code:

Brochure.java:
@XmlRootElement(name="brochure")
public class Brochure {
  @XmlJavaTypeAdapter(CourseListAdapter.class)
  @XmlElement(name="course")
  Map<String,Course> courses;

   public Brochure() {
    courses = new HashMap<String, Course>();
   }
}

Course.java
public class Course {
  @XmlAttribute
  String id;
  @XmlElement
  String name;
}

CourseListAdapter
public class CourseListAdapter extends XmlAdapter<Course[],
Map<String,Course>> {
  public Map<String,Course> unmarshal( Course[] value ) {
    Map<String,Course> r = new HashMap<String,Course>();
    for( Course c : value )
      r.put(c.id,c);
    return r;
  }
  public Course[] marshal( Map<String,Course> value ) {
    return value.values().toArray(new Course[value.size()]);
  }

Test class:
public class Main {

    @Test public void test() throws Exception {
        JAXBContext jc = JAXBContext.newInstance(Brochure.class);
        Marshaller m = jc.createMarshaller();
        m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);

        Brochure b = new Brochure();
        for (int i=0; i<2; i++) {
            Course c = getCourse(i);
            b.courses.put(c.id, c);
        }

        m.marshal(b, System.out);

    }

    public Course getCourse(int i) {
        Course c1 = new Course();
        c1.id="c" + i;
        c1.name="Course " + i;
        return c1;
    }
}

}

Thanks in advance!
Murali

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