OzoneStack


1   // You can redistribute this software and/or modify it under the terms of
2   // the Ozone Library License version 1 published by ozone-db.org.
3   //
4   // This file is
5   // Copyright (C) 2002-@year@ Leo Mekenkamp. All rights reserved.
6   // $Id: OzoneStack.java,v 1.1 2002/10/24 15:41:16 per_nyfelt Exp $
7   
8   package org.ozoneDB.collections;
9   
10  import java.util.Stack  ;
11  
12  /**
13   * See the overall description on {@link org.ozoneDB.collections.OzoneCollection}.
14   * @author <a HREF="mailto:ozoneATmekenkampD0Tcom">Leo Mekenkamp (mind the anti-sp@m)</a>
15   */
16  public interface OzoneStack extends OzoneList {
17      
18      public boolean empty();
19      
20      public Object   peek();
21      
22      public Object   pop(); /*update*/
23      
24      public Object   push(Object   object); /*update*/
25      
26      public int search(Object   object);
27  
28      /**
29       * <p>Returns a <code>Stack</code> that contains the same entries as this
30       * persistent one; it is (by nature of the client-server enviromnent) always
31       * a 'deep' copy of this <code>OzoneStack</code>. I.e. the contents of 
32       * this <code>OzoneStack</code> instance are always copied to the client
33       * by use of serialization.</p>
34       * <p>Note that the difference of calling <code>iterator()</code>
35       * compared to <code>getClientStack().iterator()</code> is that in 
36       * the first case you go through the real collection on the server and in 
37       * the second case you go through a local copy on the client side.</p>
38       */
39      public Stack   getClientStack();
40      
41  }
42

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