KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > com > db4o > inside > marshall > PrimitiveMarshaller0


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.marshall;
22
23 import com.db4o.*;
24
25
26 public class PrimitiveMarshaller0 extends PrimitiveMarshaller {
27     
28     public boolean useNormalClassRead(){
29         return true;
30     }
31     
32     public int writeNew(Transaction trans, YapClassPrimitive yapClassPrimitive, Object JavaDoc obj, boolean topLevel, YapWriter parentWriter, boolean withIndirection, boolean restoreLinkOffset){
33         
34         int id = 0;
35         
36         if(obj != null){
37             
38             TypeHandler4 handler = yapClassPrimitive.i_handler;
39         
40             YapStream stream = trans.stream();
41             id = stream.newUserObject();
42             int address = -1;
43             int length = objectLength(handler);
44             if(! stream.isClient()){
45                 address = trans.i_file.getSlot(length);
46             }
47             trans.setPointer(id, address, length);
48             
49             YapWriter writer = new YapWriter(trans, length);
50             writer.useSlot(id, address, length);
51             if (Deploy.debug) {
52                 writer.writeBegin(YapConst.YAPOBJECT);
53             }
54             writer.writeInt(yapClassPrimitive.getID());
55             
56             handler.writeNew(_family, obj, false, writer, true, false);
57             
58             writer.writeEnd();
59             stream.writeNew(yapClassPrimitive, writer);
60         }
61         
62         if(parentWriter != null){
63             parentWriter.writeInt(id);
64         }
65         
66         return id;
67     }
68
69
70 }
71
Popular Tags