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Java > Open Source Codes > com > db4o > handlers > NetULong


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.handlers;
22
23 import java.math.*;
24
25 import com.db4o.*;
26
27 /**
28  * @exclude
29  */
30 public class NetULong extends NetSimpleTypeHandler{
31     
32     private static final BigInteger ZERO = new BigInteger("0", 16);
33     
34     private final static BigInteger FACTOR=new BigInteger("100",16);
35     
36     public NetULong(YapStream stream) {
37         super(stream, 23, 8);
38     }
39     
40     public String JavaDoc toString(byte[] bytes) {
41         BigInteger val=ZERO;
42         for (int i = 0; i < 8; i++){
43             val=val.multiply(FACTOR);
44             val=val.add(new BigInteger(String.valueOf(bytes[i] & 0xff),10));
45         }
46         return val.toString(10);
47     }
48 }
49
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