Re: How to get a clone of the super class?

From:
markspace <nospam@nowhere.com>
Newsgroups:
comp.lang.java.programmer
Date:
Tue, 16 Feb 2010 10:16:15 -0800
Message-ID:
<hlendl$ac5$1@news.eternal-september.org>
Lethal Possum wrote:

Hello everyone,

Let's say I have a class B that extends a class A. Now I have an
instance of B and I need to "clone" it but only as an instance of A,
not B. I can't just cast my instance of B into A, I need a new
instance of A, and only A. I need that the new object's getClass()
method to return A.class.


I'm not sure what you're trying to do. Is there a way you can be more
specific with your actual example? This one is pretty hypothetical.

Here's my hypothetical thought:

package test;

public class CloneTest implements Cloneable {

     public static void main( String[] args )
     {
         CloneChild b = new CloneChild();
         CloneTest a = b.clone();
         System.out.println( a );
     }

     @Override
     public final CloneTest clone() {
         try
         {
             return (CloneTest) super.clone();
         }catch( CloneNotSupportedException ex )
         {
             // Cannot get here
             throw new AssertionError( ex );
         }
     }
}

class CloneChild extends CloneTest {

}

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