---

TransferableTreeNode.java

package edu.ksu.cis.bandera.pdgslicer.dependency;

import javax.swing.tree.*;
import java.awt.dnd.*;
import java.awt.datatransfer.*;
import java.io.*;

public class TransferableTreeNode extends DefaultMutableTreeNode implements Transferable {
  final static int TREE = 0;
  final static int STRING = 1;
  final static int PLAIN_TEXT = 2;

  final public static DataFlavor DEFAULT_MUTABLE_TREENODE_FLAVOR = 
    new DataFlavor(DefaultMutableTreeNode.class, "Default Mutable Tree Node");

  static DataFlavor flavors[] = {DEFAULT_MUTABLE_TREENODE_FLAVOR, DataFlavor.stringFlavor, DataFlavor.plainTextFlavor};
//  static DataFlavor flavors[] = {DEFAULT_MUTABLE_TREENODE_FLAVOR}; // works fine

  private DefaultMutableTreeNode data;
                           
  public TransferableTreeNode(DefaultMutableTreeNode data) {
    this.data = data;
  }  
public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException, IOException {
    Object returnObject;
    if (flavor.equals(flavors[TREE])) {
        Object userObject = data.getUserObject();
        if (userObject == null) {
            returnObject = data;
        } else {
            returnObject = userObject;
        }
    } else
        if (flavor.equals(flavors[STRING])) {
            Object userObject = data.getUserObject();
            if (userObject == null) {
                returnObject = data.toString();
            } else {
                returnObject = userObject.toString();
            }
        } else
            if (flavor.equals(flavors[PLAIN_TEXT])) {
                Object userObject = data.getUserObject();
                String string;
                if (userObject == null) {
                    string = data.toString();
                } else {
                    string = userObject.toString();
                }
                returnObject = new ByteArrayInputStream(string.getBytes());
            } else {
                throw new UnsupportedFlavorException(flavor);
            }
    return returnObject;
}
  public DataFlavor[] getTransferDataFlavors() {
   return flavors;
  }  
  public boolean isDataFlavorSupported(DataFlavor flavor) {
    boolean returnValue = false;
    for (int i=0, n=flavors.length; i<n; i++) {
      if (flavor.equals(flavors[i])) {
        returnValue = true;
        break;
      }
    }
    return returnValue;
  }  
/**
 * Insert the method's description here.
 * Creation date: (00-11-21 10:24:54)
 * @return java.lang.String
 */
public String toString() {
    return data.toString();
}
}

---