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: *
23: * Free Software Foundation, Inc.
24: * 59 Temple Place, Suite 330
25: * Boston, MA 02111-1307 USA
26: *
27: * @author Scott Ferguson
28: */
29:
30: package com.caucho.db.store;
31:
32: import com.caucho.log.Log;
33: import com.caucho.util.L10N;
34:
35: import java.io.IOException;
36: import java.util.logging.Logger;
37:
38: /**
39: * Represents a write (dirty) block.
40: */
41: abstract public class WriteBlock extends Block {
42: private static final Logger log = Log.open(WriteBlock.class);
43: private static final L10N L = new L10N(WriteBlock.class);
44:
45: protected Block _block;
46:
47: public WriteBlock(Block block) throws IOException {
48: super (block.getStore(), block.getBlockId());
49:
50: _block = block;
51:
52: allocate();
53: }
54:
55: /* XXX: need this?
56: public void setDirty(int min, int max)
57: {
58: }
59:
60: /**
61: * Closes the write block.
62: */
63: void destroy() {
64: Block block = _block;
65: _block = null;
66:
67: block.free();
68:
69: throw new IllegalStateException();
70: //close();
71: }
72:
73: public String toString() {
74: return "WriteBlock[" + getStore() + "," + getBlockId()
75: / Store.BLOCK_SIZE + "]";
76: }
77: }
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