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


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  * @exclude
27  */
28 public abstract class ArrayMarshaller {
29     
30     public MarshallerFamily _family;
31     
32     public abstract void deleteEmbedded(YapArray arrayHandler, YapWriter reader);
33     
34     public final TreeInt collectIDs(YapArray arrayHandler, TreeInt tree, YapWriter reader){
35         Transaction trans = reader.getTransaction();
36         return arrayHandler.collectIDs1(trans, tree, prepareIDReader(trans,reader));
37     }
38
39     public abstract void defragIDs(YapArray arrayHandler,ReaderPair readers);
40     
41     public abstract void calculateLengths(Transaction trans, ObjectHeaderAttributes header, YapArray handler, Object JavaDoc obj, boolean topLevel);
42     
43     public abstract Object JavaDoc read(YapArray arrayHandler, YapWriter reader) throws CorruptionException;
44     
45     public abstract void readCandidates(YapArray arrayHandler, YapReader reader, QCandidates candidates);
46     
47     public abstract Object JavaDoc readQuery(YapArray arrayHandler, Transaction trans, YapReader reader) throws CorruptionException;
48     
49     public abstract Object JavaDoc writeNew(YapArray arrayHandler, Object JavaDoc obj, boolean topLevel, YapWriter writer);
50
51     protected abstract YapReader prepareIDReader(Transaction trans,YapReader reader);
52 }
53
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