User Data

• A user-defined callback class that is invoked when a node is cloned, imported, deleted, adopted, or renamed

package org.w3c.dom;

public interface UserDataHandler {

  // OperationType
  public static final short NODE_CLONED   = 1;
  public static final short NODE_IMPORTED = 2;
  public static final short NODE_DELETED  = 3;
  public static final short NODE_RENAMED  = 4;
  public static final short NODE_ADOPTED  = 5;

  public void handle(short operation, String key, Object data, Node src, Node dst);

}