01: /* Copyright (C) 2004 - 2007 db4objects Inc. http://www.db4o.com
02:
03: This file is part of the db4o open source object database.
04:
05: db4o is free software; you can redistribute it and/or modify it under
06: the terms of version 2 of the GNU General Public License as published
07: by the Free Software Foundation and as clarified by db4objects' GPL
08: interpretation policy, available at
09: 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.internal.marshall;
22:
23: import com.db4o.*;
24: import com.db4o.internal.*;
25: import com.db4o.internal.handlers.*;
26:
27: /**
28: * @exclude
29: */
30: public abstract class ArrayMarshaller {
31:
32: public MarshallerFamily _family;
33:
34: public abstract void deleteEmbedded(ArrayHandler arrayHandler,
35: StatefulBuffer reader) throws Db4oIOException;
36:
37: public final TreeInt collectIDs(ArrayHandler arrayHandler,
38: TreeInt tree, StatefulBuffer reader) throws Db4oIOException {
39: Transaction trans = reader.getTransaction();
40: return arrayHandler.collectIDs1(trans, tree, prepareIDReader(
41: trans, reader));
42: }
43:
44: public abstract void defragIDs(ArrayHandler arrayHandler,
45: BufferPair readers);
46:
47: protected abstract Buffer prepareIDReader(Transaction trans,
48: Buffer reader) throws Db4oIOException;
49: }
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