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Java > Open Source Codes > com > db4o > cs > messages > MGetInternalIDs


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.cs.messages;
22
23 import com.db4o.*;
24 import com.db4o.cs.*;
25
26 public final class MGetInternalIDs extends MsgD {
27     public final boolean processAtServer(YapServerThread serverThread) {
28         YapReader bytes = this.getByteLoad();
29         long[] ids;
30         synchronized (streamLock()) {
31             try {
32                 ids = stream().getYapClass(bytes.readInt()).getIDs(transaction());
33             } catch (Exception JavaDoc e) {
34                 ids = new long[0];
35             }
36         }
37         int size = ids.length;
38         MsgD message = Msg.ID_LIST.getWriterForLength(transaction(), YapConst.ID_LENGTH * (size + 1));
39         YapReader writer = message.payLoad();
40         writer.writeInt(size);
41         for (int i = 0; i < size; i++) {
42             writer.writeInt((int) ids[i]);
43         }
44         serverThread.write(message);
45         return true;
46     }
47 }
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