Drag and drop feature in ADF tree

In the previous exercise we saw how can we implement a ADF tree structure , In this exercise we will see how we can implement drag and drop feature in ADF tree.

Before doing this exercise it will be great if you can go through the following oracle exercise

http://docs.oracle.com/cd/E18941_01/tutorials/jdtut_11r2_41/jdtut_11r2_41.html

This will brief you a lot about how drag and drop can be implemented.

Most of the things are clear in the post but for a non java user the java code might be a challenge to understand so we will first try to understand what the java code does and how we can write your own java code here to get the required functionality and the same we will implement in our ADF tree to achieve drag and drop feature in ADF tree.

In order to understand the code you will need to understand the concept of serialization following post and generics

Once you have go the basic idea on these topic now we will dwelve in to the code.