How to retrieve the selected files after a drag and drop

Documentation is limited to a minimum for this topic in GXT. After doing some research here is what I found:

TreePanelDropTarget target = new TreePanelDropTarget(tree);

target.setAllowSelfAsSource(true);

target.setFeedback(Feedback.BOTH);

target.addDNDListener(new DNDListener(){

@SuppressWarnings("unchecked")

@Override

public void dragDrop(DNDEvent e) {

for (final Object c : (List) e.getData()) {

if (c instanceof TreeStoreModel) {

Folder folder = (Folder) ((TreeStoreModel) c).getModel();

System.out.println("Dragged report: " + folder.getName());

}

}

super.dragDrop(e);

}

where Folder is my BaseTreeModel:

import java.io.Serializable;

import com.extjs.gxt.ui.client.data.BaseTreeModel;

public class Folder extends BaseTreeModel implements Serializable {

private static int ID = 0;

public Folder(String name) {

set("name", name);

}

public Folder(String name, String id) {

set("id",id);

set("name", name);

}

public String getId() {

return (String) get("id");

}

public String getName() {

return (String) get("name");

}

public String toString() {

return getName();

}

}