KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > com > db4o > inside > btree > BTreeRemove


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.inside.btree;
22
23 import com.db4o.Transaction;
24 import com.db4o.foundation.No4;
25
26 /**
27  * @exclude
28  */
29 public class BTreeRemove extends BTreeUpdate {
30     
31     public BTreeRemove(Transaction transaction, Object JavaDoc obj) {
32         super(transaction, obj);
33     }
34     
35     protected void committed(BTree btree){
36         btree.notifyRemoveListener(getObject());
37     }
38     
39     public String JavaDoc toString() {
40         return "(-) " + super.toString();
41     }
42     
43     public boolean isRemove() {
44         return true;
45     }
46
47     protected Object JavaDoc getCommittedObject() {
48         return No4.INSTANCE;
49     }
50     
51 }
52
Popular Tags