[XStram] XStream Annotation Example

Scenario
If I would like to :
- annotate the list to be recognized as an implicit collection
- annotate an alias the desired class / fields

How-To
Here has sample code:

@Service
public class XmlService {
    
    public String generateXmlString(Root xmlObject) {
        XStream xstream = new XStream();
        // Process the annotations of the given types and configure the XStream.
        xstream.processAnnotations(new Class[] { Root.class, MyObjectList.class, MyObject.class });
        String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" + xstream.toXML(xmlObject);
        return xml;
    }
    
    // create an alias to the desired class
    @XStreamAlias("MyObject") 
    @Data
    private static class MyObject {
        // ignore fields
    }

    @Data
    private static class MyObjectList {
        // whenever you have a collection which doesn't need to display it's root tag,
        // you can map it as an implicit collection
        @XStreamImplicit
        private List<MyObject> resultObjects;
    }

    @Data
    // create an alias to the desired class
    @XStreamAlias("TEST") 
    private static class Root {
        // create an alias to the field
        @XStreamAlias("MyObjectList") 
        private MyObjectList objectList = null;
    }
}    

The generated XML content looks like:

<?xml version="1.0" encoding="UTF-8"?>
<TEST>
  <MyObjectList>
    <MyObject>
    </MyObject>
    <MyObject>
    </MyObject>
  </MyObjectList>
</TEST>