01: ///////////////////////////////////////////////////////////////////////////////
02: //
03: // Copyright (C) 2003-@year@ by Thomas M. Hazel, MyOODB (www.myoodb.org)
04: //
05: // All Rights Reserved
06: //
07: // This program is free software; you can redistribute it and/or modify
08: // it under the terms of the GNU General Public License and GNU Library
09: // General Public License as published by the Free Software Foundation;
10: // either version 2, or (at your option) any later version.
11: //
12: // This program is distributed in the hope that it will be useful,
13: // but WITHOUT ANY WARRANTY; without even the implied warranty of
14: // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15: // GNU General Public License and GNU Library General Public License
16: // for more details.
17: //
18: // You should have received a copy of the GNU General Public License
19: // and GNU Library General Public License along with this program; if
20: // not, write to the Free Software Foundation, 675 Mass Ave, Cambridge,
21: // MA 02139, USA.
22: //
23: ///////////////////////////////////////////////////////////////////////////////
24: package org.myoodb.core.command;
25:
26: import java.io.*;
27: import org.myoodb.core.*;
28:
29: public abstract class AbstractCommand implements Externalizable {
30: protected transient Object m_result;
31: protected long m_tunnelIdentifier;
32:
33: public AbstractCommand() {
34: m_result = null;
35: m_tunnelIdentifier = -1;
36: }
37:
38: public void setResult(Object result) {
39: m_result = result;
40: }
41:
42: public Object getResult() {
43: return m_result;
44: }
45:
46: public void setTunnelIdentifier(long identifier) {
47: m_tunnelIdentifier = identifier;
48: }
49:
50: public long getTunnelIdentifier() {
51: return m_tunnelIdentifier;
52: }
53:
54: public void writeExternal(ObjectOutput out) throws IOException {
55: out.writeLong(m_tunnelIdentifier);
56: }
57:
58: public void readExternal(ObjectInput in) throws IOException,
59: ClassNotFoundException {
60: m_tunnelIdentifier = in.readLong();
61: }
62:
63: public abstract void process(AbstractTransaction tx)
64: throws Exception;
65: }
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