01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * Resin Open Source is free software; you can redistribute it and/or modify
10: * it under the terms of the GNU General Public License as published by
11: * the Free Software Foundation; either version 2 of the License, or
12: * (at your option) any later version.
13: *
14: * Resin Open Source is distributed in the hope that it will be useful,
15: * but WITHOUT ANY WARRANTY; without even the implied warranty of
16: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17: * of NON-INFRINGEMENT. See the GNU General Public License for more
18: * details.
19: *
20: * You should have received a copy of the GNU General Public License
21: * along with Resin Open Source; if not, write to the
22: * Free SoftwareFoundation, Inc.
23: * 59 Temple Place, Suite 330
24: * Boston, MA 02111-1307 USA
25: *
26: * @author Scott Ferguson
27: */
28:
29: package com.caucho.transaction.xalog;
30:
31: import com.caucho.transaction.XidImpl;
32: import com.caucho.vfs.Path;
33:
34: import java.io.IOException;
35:
36: /**
37: * Implements a single log stream. Each log stream has two associated
38: * files in order to switch at the end of the file.
39: */
40: abstract public class AbstractXALogManager {
41: /**
42: * Sets a log path.
43: */
44: abstract public void setPath(Path path) throws java.io.IOException;
45:
46: /**
47: * Initialize the log manager.
48: */
49: abstract public void init();
50:
51: /**
52: * Starts the log manager.
53: */
54: abstract public void start() throws IOException;
55:
56: /**
57: * True if the xid is an already-committed xid
58: */
59: abstract public boolean hasCommittedXid(XidImpl xid);
60:
61: /**
62: * Returns a stream for a new transaction.
63: */
64: abstract public AbstractXALogStream getStream();
65:
66: /**
67: * Returns a stream for a new transaction.
68: */
69: abstract public void flush();
70:
71: /**
72: * Closes the log manager.
73: */
74: abstract public void close();
75:
76: }
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