Java in a Nutshell, 5th Edition [Electronic resources] نسخه متنی

This Level 3 interface defines a handler
that is invoked when a node on which user-specified data has been
registered is adopted, cloned, deleted, imported or renamed. Register
an object that implements this interface in the call to
Node.setUserData( ).

public interface

UserDataHandler {
// Public Constants
public static final short

NODE_ADOPTED ; =5
public static final short

NODE_CLONED ; =1
public static final short

NODE_DELETED ; =3
public static final short

NODE_IMPORTED ; =2
public static final short

NODE_RENAMED ; =4
// Public Instance Methods
void

handle (short

operation , String

key , Object

data , Node

src , Node

dst );
}

Passed To

Node.setUserData( )