TTreeMap


1   /* Copyright (C) 2004 - 2006  db4objects Inc.  http://www.db4o.com
2   
3   This file is part of the db4o open source object database.
4   
5   db4o is free software; you can redistribute it and/or modify it under
6   the terms of version 2 of the GNU General Public License as published
7   by the Free Software Foundation and as clarified by db4objects' GPL 
8   interpretation policy, available at
9   http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
10  Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
11  Suite 350, San Mateo, CA 94403, USA.
12  
13  db4o is distributed in the hope that it will be useful, but WITHOUT ANY
14  WARRANTY; without even the implied warranty of MERCHANTABILITY or
15  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
16  for more details.
17  
18  You should have received a copy of the GNU General Public License along
19  with this program; if not, write to the Free Software Foundation, Inc.,
20  59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. */
21  package com.db4o.config;
22  
23  import java.util.*;
24  
25  import com.db4o.*;
26  
27  /**
28   * @exclude
29   * @sharpen.ignore
30   */
31  public class TTreeMap implements ObjectConstructor {
32      
33      public Object   onStore(ObjectContainer con, Object   object){
34          return ((TreeMap)object).comparator();
35      }
36  
37      public void onActivate(ObjectContainer con, Object   object, Object   members){
38          // do nothing
39      }
40  
41      public Object   onInstantiate(ObjectContainer container, Object   storedObject){
42          try{
43              Comparator comp = (Comparator)storedObject;
44              if(comp != null){
45                  return new TreeMap(comp);
46              }
47          }catch(Exception   e){}
48          return new TreeMap();
49      }
50  
51      public Class   storedClass(){
52          return Object  .class;
53      }
54  }
55
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