/* This file is part of the db4o object database http://www.db4o.com
Copyright (C) 2004 - 2011 Versant Corporation http://www.versant.com
db4o is free software; you can redistribute it and/or modify it under
the terms of version 3 of the GNU General Public License as published
by the Free Software Foundation.
db4o is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
with this program. If not, see http://www.gnu.org/licenses/. */
package com.db4o.cs.internal.messages;
import com.db4o.ext.*;
import com.db4o.internal.*;
public class MReadReaderById extends MsgD implements MessageWithResponse {
public final Msg replyFromServer() {
ByteArrayBuffer bytes = null;
// readWriterByID may fail in certain cases, for instance if
// and object was deleted by another client
try {
synchronized (containerLock()) {
bytes = container().readBufferById(transaction(), _payLoad.readInt(), _payLoad.readInt()==1);
}
if (bytes == null) {
bytes = new ByteArrayBuffer(0);
}
}
catch(Db4oRecoverableException exc) {
throw exc;
}
catch(Throwable exc) {
throw new Db4oRecoverableException(exc);
}
return Msg.READ_BYTES.getWriter(transaction(), bytes);
}
}